SF Climate Challenge

If you live in San Francisco, this sounds like a great contest. http://www.sfclimatechallenge.org/The contest is among teams of five or more households. There are several ways to get involved. You can start your own team with your friends, families or coworkers. You can join an existing team. Or you can just sign up solo as part of your local neighborhood team. The contest begins October 25th. You spend your next PG&E;* billing period doing everything you can to reduce your energy use. The more energy your team saves, the better your chances of winning.It can be as simple as turning off a few lights and lowering the thermostat, to as dramatic as installing solar panels on your roof or creating a human-powered generator. It's all up to you.At the end, we compare the contest period with your bills from the same time last year, and dish out cash and prizes to the teams who've done the best and come up with the most creative solutions. Even if that isn't you, you'll still have saved some money on your power bill and helped fight global warming. So in a sense, everyone wins.Prizes:Greatest absolute reduction in energy use: $5,000Greatest percentage reduction in energy use: $5,000Greatest reduction by a School: $2,500Greatest reduction by a neighborhood organziation: $1,000Greatest reduction by a business or other organziation: $1,000

Topic by ewilhelm   |  last reply


'Most X on record' climate list?

Does anyone know if there's a list/graph of the 'Most -whatever- on record' for the world, season by season? What I mean is, countries recording their hottest summer, wettest winter, worst drought, etc. I ask because it would give a pretty striking visual for climate change. It seems everywhere I spend any time it's the most something season on record, or at least for 40-50 years. Here's a little list I compiled a couple years ago, from where I'd been: 2002 - summer - New Zealand - worst drought on record          - summer - Western Australia - worst drought on record          - spring - Malaysia - hottest on record          - winter - Ireland - wettest on record          - autumn - Ireland - mildest 2003 - summer - Australia - worst drought          - summer - United Kingdom - hottest summer, hottest day          - summer - New Zealand - highest UV index 2004 - summer - British Columbia - longest          - summer and autumn - British Columbia - worst fire season 2005 - winter and spring - Victoria, Australia- wettest          - summer - Australian east coast - hottest          - summer - Western Australia - coolest Since then it's been worst droughts, floods, cyclones, wettest summers, and now snow. If it hasn't been graphed, it should be.

Topic by SolarFlower_org   |  last reply


Solar Heat in Cold Climates

Cool Energy is making a solar power and heating system that works in cold climates. Hooray!  It makes use of a highly efficient Stirling Engine.SolarHeart

Topic by whiteoakart 


It said "cool wash"!

Who'd a thunk it?Climate change is making sheep shrink!Cold weather tends to select for larger-bodied mammals - polar bears, mammoths, walruses etc. Larger, stringer individuals are more likely to survive long enough to reproduce. The same is true for wild sheep.A new report in Science shows that Scotland's warming climate has allowed smaller-bodied, shorter-legged sheep to survive - a 5% change in only 22 years.The trend seems to be continuing, "But it's too early to say if, in 100 years, we will have chihuahuas herding pocket-sized sheep." BBC story

Topic by Kiteman   |  last reply


"The more science you know, the less worried you are about climate"

"Americans with higher levels of scientific and mathematical knowledge are more skeptical regarding the dangers of climate change than their more poorly educated fellow citizens, a U.S. National Science Foundation-funded study has found." See link here: http://www.kurzweilai.net/the-more-science-you-know-the-less-worried-you-are-about-climate What do you believe?

Topic by mikey77   |  last reply


Man turns himself into a puddle to protest climate change

In order to protest global climate change, this man from Red Cross Argentina turned himself into a puddle and handed out information on ways to protect the planet from imminent climate disaster such as reusing plastic bags, conserving water, and buying energy efficient cars and appliances. We just wonder how long it took him to get out of there.but you got to give him propsmain story

Topic by Chicken2209   |  last reply


Provide 1000 cheap, wireless climate data loggers - Citizen Science Contest

The SciStarter Citizen Science Contest is live! This is your opportunity to help millions of citizen scientists contribute to real scientific discovery. Make their experiences better by coming up with solutions to some real annoyances that hinder their participation. To get you started, here is a specific--and very real--challenge sent to us by project organizers. PROVIDE 1000 CHEAP WIRELESS CLIMATE DATA LOGGERS Background: Wildlife of Our Homes provides an opportunity for citizen scientists to help researchers study the species that live alongside us everyday - bacteria, fungi, and insects. By using a sampling kit and answering a few questions, volunteers help researchers create an atlas of microbial diversity in homes across the country. The Problem: Project organizers would love to collect climate data in each of the 1000 homes where volunteers are sampling microbes from 4 common surfaces. Unfortunately, climate sensors are expensive, and more importantly, project organizers don't have an easy way to transfer data from those home sensors (temperature, humidity, etc) to an online database. Currently, they must physically retrieve and download the data. The Challenge: Find a way to log climate data and wirelessly transmit the data to the project organizers. Enter now! Contest closes January 21, 2013

Topic by scistarter   |  last reply


Does anyone know how I could control the temperature of the air and the humidity in a plexiglass box ( 3 x 2 x 2 feet)?

Hi there! I am working on a project and I want to create adjustable weather conditions in a clear box. Being able to adjust the humidity and the temperature in the box would be ideal. I want to place an object in the box that transforms based on the conditions of the climate inside. I know my way around the shop, so fabricating a box is not an issue. I don't know where to start though with the devices. Thanks! ~Karla

Question by kstinger   |  last reply


Sucking Carbon out of the air?

I read somewhere that lye can absorb carbon from the air, and that organizations are putting out HUGE tubs of lye to suck up carbon. I wonder if it works.

Topic by lawizeg   |  last reply


Climate Change Recalculated Talk with Saul Griffith

"It is not accurate to say we can still stop climate change," says Saul Griffith, the Bay Area inventor who received a MacArthur "genius" award in 2007. "We are now working to stop worse climate change or much-worse-than-worse climate change."Griffith has done the research and the math to figure out exactly what it will take for humanity to soften the impact of climate change in the next 25 years, and he lays it out in a dazzling presentation. It is horrifying news. The politics and technologies we have now are not up to the task.Friday, January 16, 2009Doors open 7:00pm, talk at 7:30pm lasting ~1.5 hoursLocated at Cowell Theatre in Fort Mason Center, San Francisco, CAhttp://www.longnow.org/

Topic by noahw   |  last reply


Study: Ethanol Worse for Climate Than Gasoline

Ethanol is under fire again: At first blush, biofuels such as corn ethanol and soybean diesel seem like they would be great from the standpoint of global warming. The crops soak up carbon dioxide from the atmosphere as they grow, and that balances out the carbon dioxide they produce when they're burned. But until now, nobody has fully analyzed all the ripple effects of this industry. And Tim Searchinger, a visiting scholar at Princeton University, says those effects turn out to be huge. "The simplest explanation is that when we divert our corn or soybeans to fuel, if people around the world are going to continue to eat the same amount that they're already eating, you have to replace that food somewhere else," Searchinger says.Searchinger and his colleagues looked globally to figure out where the new cropland is coming from, as American farmers produce fuel crops where they used to grow food. The answer is that biofuel production here is driving agriculture to expand in other parts of the world."That's done in a significant part by burning down forests, plowing up grasslands. That releases a great deal of carbon dioxide," Searchinger says.In fact, Searchinger's group's study, published online by Science magazine, shows those actions end up releasing huge amounts of carbon dioxide. The study finds that over a 30-year span, biofuels end up contributing twice as much carbon dioxide to the air as that amount of gasoline would, when you add in the global effects. The rest of the article (and radio broadcast) is here

Topic by Goodhart   |  last reply


The "truth" about climate change - a little story

Global warming, climate change, jelly fish attacks, changed ocean currents...We all know the highlights from the news but what is the real deal behind all of this?It can't be denied that burning fossil fuels with no regrets has an impact on our globe.CO2 and other gasses or elements have been trapped for thausands of years.We release them all into our atmosphere and while doing so keep adding more harmful stuff.So, of course it is easy to say that if we would have nver used our fossile fuels to this extent then our world would be unharmed and a happy place throughout.Even if we would ignore the impossible task of making it where we are right now without having used any fossile fuels: How much would it be different?If we trust the offical climate data that has been collected then it clearly shows a rise in so called climate changing emissions since our industrial revolution started.Be it data from the ice, core drillings or just sample taken from old canyons - the results are all the same.Since the late 1800's there is a steady rise in emissions, CO2 and all the other things we don't really want in our air.And for good reasons all these green advocates try their best to stop us from doing more harm.Since the 80's we started to actually care more, better engines, catalytic converters, cleaning mechanisms for our industiral waste and chimneys.But did it make any change or difference?About 40 years now some countries try hard to do it right, so this must show up somewhere?!Well it does not.You see countries like the US never really cared about climate or the enviroment if there was a cheaper and easier option.Just check how long it took them to even acknowledge that our climate is changing due to our interference...Then there is China and as we have seen with the olympics they literally have to shut down production so you can see for more than a few km...But the same is true for so many other countries.Like everwhere else the industrial revolutions comes sooner or later and as always the cheapest way is done first and for far too long.And with the delay in reactions and consequences it is now certain that the worst is yet to come.Of course there is also another side to the entire story - nature itself.We destroy it where we can to safisfy our need for being cheap.Ever wondered where all this cheap furniture is coming from?Or all the wood used throughout the world?Rainforests are disappearing, flora and fauna is destroyed.In most cases with a lot of fires as it is still the easiest way to clean up when done.Now add the vulcanic eruptions that increased over the past 20 odd years around the world.And if you dare all the bushfires or natural causes.Combined this causes a higher impact than all our burning of fossile fuels - and it adds to the mix.And this brings us back in time.Taking the records of climete conditions all the way back to before the dinosaurs showed us that we had periods of much higher temperatures than what we might see soon.CO2 level at some periods were so high that the earth literally was a green house.So why did we humans amke it anyway onto this earth if chance were so bad?Species adjust, evolve or go extinct, new ones appear...Well, unless you are a croc or so and really don't care about Darvin and evolution ;)Does that mean we are on the way to become a new species?Sadly no, because we are the cause of all our problems.We now use technology and science to adjust nature and the enviroment to our needs.It gets too hot? Well add an airconditioner, will you!?The ground water is too contaminted to drink? Well, why do you think we invented bottled water?!You need room for new homes? Don't mind the flood planes, just drain them and build, there was no flood in over 30 years...See, even if we would go fully green and honur nature around the world from today on.Even if we try to clean up the mess we already created.The effects of what we did over the last 40 or more years are still in progress and far from over.Like a good stew it keep cooking until it is ready to serve.But strenght comes in numbers!Like a virus we keep multiplying even in areas with very limited ressources.After all, we just import what we need..Natural selection is being eliminated so pharma companies can make a living too.From just over 40 years our "natural" life expectency increased now to well into the 80's.You are not fertile? No problem we have means to fertilise your eggs with the sperm from hubby!Already suffering badly from diabetes, asthma or other chronical illness? No problem, have some kids anyway.And just to top it always make sure to avoid natural foods in favour for processed and artificial ingredients.In nature the weak, the sick, the old, the malformed and incapable are a food source.We took this food source away, keet them around, care for them and make sure really everyone has the same chance in life.In life - but not in nature anymore!Social evolution meant that natural selection was no longer a requirement to ensure a strong "tribe" or hunting party.We compensated the drain on ressources and all pharma companies are still very grateful for this.No this is no weird rant on humanity or the idea of some mad person, it is just the naked reality we like to ignore.A horse breeder will not accept a weak and constanlty sick horse for his breeding stock.A broken leg, like for a cow usually just means the animal is put down.Some dog breeders still prefer to cull a few pups just because the color pattern is not nice enough or the ears are too short.Even if you just breed fish you o through all sorts of troubles to ensure you have the best genes available in your tanks.You think this is already going to far with the ideas, I know :(But we have real world examples highlighting the results of the exact opposite: Inbreeding and ignoring the defects in genes and health.The british royal family destroyed the italian and russin monarchies the same was the spanish and protugise, even impacted on the french.In times when there was no clue about genetic defects or deseases that can be dormant in females but very active in males, the british royalty simply kept providing tainted bloodlines to the other royal familes.No offsprings that are male and of good health meant the end of their monarchies.The british survived by allowing the common folk to join the blue blood lines and now it is common in all the monachrchies left in the world.Remove the carries, provide fresh genes to get a better diversity.Really no offence, but just look at Charles and Camilla ;)Jokes aside: the story of the european monarchies shows what happens if things go too wrong.From hunters a gatherers that either kept healthy or died out we eveloved to having a gene pool that is full of nasty surprises.Again no offence meant in any way or to any person!If we compare our world with a big aquarium than it might have eveloved like this:Once there was a bowl full of plants, guppies and lots of other fish and creatures living on each other.Over time the guppies learnt when the feeding times are and made sure they get most of the food.Slowly the other psecies had not enough room and food anymore, only the hunter had a good linving with the huge supply of guppies.Then the guppies managed to reduce the dangers from all predators around and started to really take off.Soon every guppy had only conerns about having a good life and enough food.The waste got more and more, the sick and ill too.The last hunter able to fight them died off as he too suffered from the wasten the changed enviroment and gnetic defects transfered.Now there is little plants left, guppies everywhere, crap everywhere and even those guppies only living a few months still manages to find a partner to ensure their tainted gene pool spreads into the general population.We have no tank owner getting the balance right again, removing the sick and weak, we humans just keep going strong and if the crap pile gets too high we put grass and houses on top of it....We humans don't like to be compared with fish, a virus or any other lower being for that matter.These hings just don't affect or concern us.And anyone who dares to do so anyway has a long list of nasty words thrown at them.Is it because we humans can't tolerate the truth?Or is because deep inside we all know but refuse to think about it?

Topic by Downunder35m   |  last reply



Reducing cow burping 'is key to tackling climate change'

Argentine scientists are taking a novel approach to studying global warming - strapping plastic tanks to the backs of cows to collect their burps .source

Topic by ivan.veretelnyk   |  last reply


Europe Turns Back to Coal, Raising Climate Fears

Europe, with its smart cars, good public transportation, and high density, is often a beacon of hope for environmentally-conscious Americans. However, since coal remains a relatively cheap source of energy (at least in the short-term...), many European countries are turning to it as oil and gas prices rise, and concerns about energy stability and independence grow stronger. Europe Turns Back to Coal, Raising Climate FearsOver the next five years, Italy will increase its reliance on coal to 33 percent from 14 percent. And Italy is not alone in its return to coal. Driven by rising demand, record high oil and natural gas prices, concerns over energy security and an aversion to nuclear energy, European countries are expected to put into operation about 50 coal-fired plants over the next five years, plants that will be in use for the next five decades. The fast-expanding developing economies of India and China, where coal remains a major fuel source for more than two billion people, have long been regarded as among the biggest challenges to reducing carbon emissions. But the return now to coal even in eco-conscious Europe is sowing real alarm among environmentalists who warn that it is setting the world on a disastrous trajectory that will make controlling global warming impossible.

Topic by ewilhelm   |  last reply


Timer,Temprature & Humidity Based Relay Switching with Arduino Mega.? Answered

I am making a Climate Controler for my Green House. Please help me about Arduino code for Four Relay operation. relay1 will be high when Temp will rise higher then Temprature value defined and will low when reach under defined value. relay2 will be high when Humidity will rise higher then Humidity value defined and will low when reach under defined value  relay3 will be high for 10 Minutes in every 120 Minutes. relay4 will be high for 10 Minutes in every 120 Minutes.  I am Using DHT11 sensor with Mega2560 Board. Currently using this code. Its working for Temp & Humidty based Relay operation only. Need to add two relay with Timer based operation. System needs to check Humidity and Temprature value in every 10 minutes. Please Help.  I am very new for Arduino and making this for my personal use. #include #include #include /*-----( Declare objects )-----*/ // set the LCD address to 0x27 for a 20 chars 4 line display // Set the pins on the I2C chip used for LCD connections: //                    addr, en,rw,rs,d4,d5,d6,d7,bl,blpol LiquidCrystal lcd(20, 19, 18, 17, 16, 15); // Set the LCD I2C address dht11 DHT11; /*-----( Declare Constants, Pin Numbers )-----*/ #define DHT11PIN 22 #define RELAY1  6                        #define RELAY2  7                        #define RELAY3  4                        #define RELAY4  5 #define TempTarget 30 #define HUMTarget 50 void setup()   /*----( SETUP: RUNS ONCE )----*/ {   Serial.begin(9600); //(Remove all 'Serial' commands if not needed)   lcd.begin(20,2);         // initialize the lcd for 20 chars 4 lines, turn on backlight     // Print a message to the LCD.   //lcd.setCursor(0, 1);   lcd.print("SHOURYA's GARDEN");   // Initialise the Arduino data pins for OUTPUT   pinMode(RELAY1, OUTPUT);         pinMode(RELAY2, OUTPUT);   pinMode(RELAY3, OUTPUT);   pinMode(RELAY4, OUTPUT);   }/*--(end setup )---*/ void loop()   /*----( LOOP: RUNS CONSTANTLY )----*/ {   int chk = DHT11.read(DHT11PIN);   Serial.print   ("GARDEN DATA SENSING ");   switch (chk)   {     case 0: Serial.println(" OK"); break;     case -1: Serial.println("Checksum error"); break;     case -2: Serial.println("Time out error"); break;     default: Serial.println("Unknown error"); break;   }   lcd.setCursor(0, 1);   lcd.print("TempC=");   lcd.print((float)DHT11.temperature, 0);   Serial.print("Temperature (oC): ");   Serial.println((float)DHT11.temperature, 2);   //lcd.print(" F=");   //lcd.print(Fahrenheit(DHT11.temperature), 0);   //Serial.print("Temperature (oF): ");   //Serial.println(Fahrenheit(DHT11.temperature), 2);     lcd.print(" Hum=");   lcd.print((float)DHT11.humidity, 0);   lcd.print("%");   Serial.print("Humid(%): ");   Serial.println((float)DHT11.humidity, 2);    //Serial.print("Temperature (K): ");   //Serial.println(Kelvin(DHT11.temperature), 2);   //Serial.print("Dew Point (oC): ");   //Serial.println(dewPoint(DHT11.temperature, DHT11.humidity));   //Serial.print("Dew PointFast (oC): ");   //Serial.println(dewPointFast(DHT11.temperature, DHT11.humidity));        if (DHT11.temperature > TempTarget)       { Serial.println("Turning on Exaust Fan"); //lcd.print("Turning on Exaust Fan"); digitalWrite (RELAY1, HIGH); delay(1000);     }      if (DHT11.temperature < TempTarget)     { Serial.println("Turning Off Exaust Fan"); //lcd.print("Turning off Exaust Fan"); digitalWrite (RELAY1, LOW); delay(1000);     }       if (DHT11.humidity < HUMTarget)     { Serial.println("Turning on HUMIDIFIER"); //lcd.print("Turning on HUMIDIFIER"); digitalWrite (RELAY2, HIGH); delay(1000);     }      if (DHT11.humidity > HUMTarget)     { Serial.println("Turning Off HUMIDIFIER"); //lcd.print("Turning off HUMIDIFIER"); digitalWrite (RELAY2, LOW); delay(1000);     }       digitalWrite(RELAY3,HIGH);           // Turns ON Relays 3    digitalWrite(RELAY4,HIGH);           // Turns ON Relays 4    delay(10*1000);     digitalWrite(RELAY3,LOW);          // Turns Relay Off    digitalWrite(RELAY4,LOW);          // Turns Relay Off   }/* --(end main loop )-- */ /*-----( Declare User-written Functions )-----*/ // //Celsius to Fahrenheit conversion double Fahrenheit(double celsius) {         return 1.8 * celsius + 32; } //Celsius to Kelvin conversion double Kelvin(double celsius) {         return celsius + 273.15; } // dewPoint function NOAA // reference: http://wahiduddin.net/calc/density_algorithms.htm double dewPoint(double celsius, double humidity) {         double A0= 373.15/(273.15 + celsius);         double SUM = -7.90298 * (A0-1);         SUM += 5.02808 * log10(A0);         SUM += -1.3816e-7 * (pow(10, (11.344*(1-1/A0)))-1) ;         SUM += 8.1328e-3 * (pow(10,(-3.49149*(A0-1)))-1) ;         SUM += log10(1013.246);         double VP = pow(10, SUM-3) * humidity;         double T = log(VP/0.61078);   // temp var         return (241.88 * T) / (17.558-T); } // delta max = 0.6544 wrt dewPoint() // 5x faster than dewPoint() // reference: http://en.wikipedia.org/wiki/Dew_point double dewPointFast(double celsius, double humidity) {         double a = 17.271;         double b = 237.7;         double temp = (a * celsius) / (b + celsius) + log(humidity/100);         double Td = (b * temp) / (a - temp);         return Td; } /* ( THE END ) */

Question by achauhan13   |  last reply


Green indoor gardening

I have had an interest in building a greenhouse like area with flouresent bulbs, automated water, and climate control. For the water i could hook up a hose on a timer to a bit of pvc but what is the best way to get proper climate control. What is the desired composition of a water? I guess the question is how do i get nutrient water and proper vitamins straight to a plant?

Topic by Mikethebuilder   |  last reply


Advice for starting an apartment herb or vegetable garden in extremely dry and cold climate?

I live in the North and can't seem to get anything to grow let alone stay alive! We have snow on the ground Sept to May/June and between Nov to Apr the temp is usually -22F to -49F. It's extremely dry as well. As I live in an apartment, I am limited in floor space and need to keep them away from the windows as they freeze over (too drafty). It should be said that  I'm a beginner at green things - before moving up here, things stayed alive at least (maybe not flourish) but here, EVERYTHING seems to die!

Question by tibaistabi   |  last reply


Can someone explane how to build a waterproof cabinet for an LCD or Plasma Telivision?

I want to build an enclosure for my television to withstand the floridian climate

Question by mcatnova   |  last reply


Cosmic rays amplify sun's effect of warming and cooling.

Interesting article I read today. B.C Mud coresDoesn't fit with the current orthodoxy of climate science in the media, but it's very interesting.

Topic by royalestel   |  last reply


Energy Revolution

Greenpeace writes:Our Energy Revolution outlines a global plan for a sustainable renewable economic future. It shows us how we can get from where we are now, to where we need to be to avoid a climate change disaster. It was developed with specialists from the Institute of Technical Thermodynamics at the German Aerospace Centre (DLR) and more than 30 scientists and engineers from universities, institutes and the renewable energy industry around the world.More info on http://www.greenpeace.org/international/campaigns/climate-change/energyrevolution

Topic by comodore   |  last reply


i am making an arduino automated mushroom climate control , i want to control the humidity of two rooms using relays?

Using arduino uno , pressure pump ,two solenoid valves  i want to control the humidity of two rooms . my planning that when the humidity of room no 1 falls below 80 the relay for pressure pump and the relay for that specific solenoid have to turn on and turned off if the humidity is above 90. The same procedure for the next room . As i am using single pressure pump for both rooms ...i am finding difficulties for reading two DHT11 and controlling three relay .....  

Question by abhisuma   |  last reply


citizen science contest -- I don't get it?

Looking at the citizen science contest  -- I have ideas for 1000 cheap climate sensors, I followed the link but there wasn't anything about climate sensors, something about bugs in my house, which is interesting too. Also -- I went to post at the bottom of the contest page, but there was not a spot to do so.  It took me a minute to find this forum... followed about us -> contact    Contest and website sound great  -- I would like to help solve a specific problem, but I think I'm missing something....I'll try to think of a better question...

Topic by marc.cryan   |  last reply


Ice rink on an old volleyball court in my backyard in Northcentral PA - is it a good idea in this climate?

I live in Northcentral PA - we have had record lows these past 3 weeks average 30. I am thinking about building an ice rink in my backyard on a grassed over volleyball court - Is this a good idea based on where I live and on an old sand volleyball court? I wanted to build it for my nieces and nephews who will be here in about 7 days for the holidays.  Since we have 7 acres of grass thought this would be fun for the family.  If so what type of plastic is best?

Question by kkirk10   |  last reply


Global Warming Leading to Possible Beer Shortage

According to Treehugger, a warmer climate is leading to shortages in hops and barley. If all of it keeps going in the same direction, beer will be getting more expensive to make and nobody wants that. Link

Topic by fungus amungus   |  last reply


pls help me with an working model tat can be made in one or two days.below are the given topics on which i need projects

1.climate change      (2)green energy  (3)conservation of energy..  (4)disaster management...  (5)health   (6)food security

Question by pikichops   |  last reply


What's the most efficient way to build a new small home in a midwestern climate? Can a laymen really pull this off?

I'd like to build as green and as efficiently as possible, most likely building it off-grid, and incorporating a composting toilet (clivus multrum style), and energystar appliances.

Question by bhsx   |  last reply


Drinking Water Condenser

Does anyone have any plans or ideas for a DIY drinking water condenser? Something that can make water from the air would be fantastic, especially as climate change starts to have more and more of an impact on the availability of clean water. Electric powered should be fine, directly solar powered might be more difficult. Any thoughts?

Topic by foul_owl   |  last reply


Solar panel design: Optimal thickness and air-tight or vented? Answered

Is it better to minimize airspace inside a home made solar panel, and should the panel be air-tight, or have ventilation holes? I'm trying 1/4" depth from the cells to the Lexan cover. It will be used in a climate that ranges from +35C in summer to -35C in winter.

Question by    |  last reply


Global Warming - Ruling on Documentary

UK Broadcasting watchdog OfCom has ruled that the Channel 4 documentary The Great Global Warming Swindle broke broadcasting rules by implying that GW was not due to human activity.The film's key contentions were that the increase in atmospheric temperatures observed since the 1970s was not primarily caused by emissions of greenhouse gases from burning fossil fuels, and that the modern focus on climate change is based in politics rather than science. It is seen in some "climate sceptic" circles as a counter to Al Gore's movie An Inconvenient Truth, and credited with influencing public perception of climate science. It has reportedly been sold to 21 countries and distributed on DVD. GW experts featured in the documentary complained that they were quoted out of context, had not been told of the aims of the programme makers, and some quotes attributed to experts were, allegedly, made up by the reporters."It's very disappointing that Ofcom hasn't come up with a stronger statement about being misled," said Sir John Houghton, a former head of the UK Met Office and chair of the Intergovernmental Panel on Climate Change (IPCC) scientific assessment. "I know hundreds of people, literally hundreds, who were misled by it - they saw it, it was a well-produced programme and they imagined it had some truth behind it, so they were misled and it seems Ofcom didn't care about that," he told BBC News."The programme has been let off the hook on a highly questionable technicality," said Bob Ward, former head of media at the Royal Society, who played a prominent role in co-ordinating objections to the film. "The ruling noted that Channel 4 had admitted errors in the graphs and data used in the programme, yet decided that this did not cause harm or offence to the audience." Plaintiffs accused the programme of containing myriad factual inaccuracies, but Ofcom says it was "impractical and inappropriate for it to examine in detail all of the multifarious alleged examples... set out in the complaints." On another issue - whether contributors to the programme had been treated fairly - Ofcom mainly found against Channel 4 and the film's producer WagTV. Former UK chief scientific adviser Sir David King had been misquoted and had not been given a chance to put his case, the regulator said. Ofcom also found in favour of Carl Wunsch, an oceanographer interviewed for the programme, who said he had been invited to take part in a programme that would "discuss in a balanced way the complicated elements of understanding of climate change", but which turned out to be "an out-and-out propaganda piece, in which there is not even a gesture toward balance". The film alleged that the IPCC's scientific reports were driven by politics rather than science, and Ofcom ruled the organisation had not been given adequate time to respond. Full BBC article, plus links

Topic by Kiteman   |  last reply


"Your Environmentalism Sucks!" Says WIRED

The cover story of WIRED this month has been published online and you can read their 10 "heresies" about the environment. They're clearly trying to shake things up by telling people stuff that sounds so wrong, but is obviously right according to them.The gist of WIRED's philosophy is that it's all about the carbon dioxide emissions and that every discussion should be framed entirely by this. After that setup, each article is a quick hit against some supposedly sacred cow.The full list of articles is below and here's a response from ecogeek that continues the discussion. So what do you think?Live in Cities: Urban Living Is Kinder to the Planet Than the Suburban LifestyleA/C Is OK: Air-Conditioning Actually Emits Less C02 Than HeatingOrganics Are Not the Answer: Surprise! Conventional Agriculture Can Be Easier on the PlanetFarm the Forests: Old-Growth Forests Can Actually Contribute to Global WarmingChina Is the Solution: The People's Republic Leads the Way in Alternative-Energy HardwareAccept Genetic Engineering: Superefficient Frankencrops Could Put a Real Dent in Greenhouse Gas EmissionsCarbon Trading Doesn't Work: Carbon Credits Were a Great Idea, But the Benefits Are IllusoryEmbrace Nuclear Power: Face It. Nukes Are the Most Climate-Friendly Industrial-Scale Form of EnergyUsed Cars - Not Hybrids: Don't Buy That New Prius! Test-Drive a Used Car InsteadPrepare for the Worst: Climate Change Is Inevitable. Get Used to ItCounterpoint: Dangers of Focusing Solely on Climate Change

Topic by fungus amungus   |  last reply


Earth Hour 2008

Check this out! Do you want to help stop climate change? Well join the millions who do by, at 8:00 pm turn off all your lights for 1 hour! Join the millions to help make the world a better place! Please send this to your friends! So everybody can join in on Earth Hour 2008.

Topic by TeacherOfTheWays   |  last reply


Proud to be British...?

Everybody knows the British Holidaymaker - sandals, socks, egg-and-chips-twice, can't-get-a-decent-cup-of-tea, no matter what the climate.That image may have to be redefined, downwards, with the release of a selection of genuine complaints from Brits returning from foreign parts.My favourite is "I think it should be explained in the brochure that the local store does not sell proper biscuits like custard creams or ginger nuts."Daily Telegraph story.

Topic by Kiteman   |  last reply


Under Attack!? Answered

I was watching the news and all over, the weather is going overboard.  Just saw China has some extreme snow. Even us down here are having more pronounced weather than before.  Hotter here now in summer and the rains are going absolutely crazy further up country.  Also went through extreme winds and rain awhile ago, much stronger than I can ever remember. Is this the climate change showing itself?

Question by Koosie   |  last reply


Does cold harm lithium batteries? Answered

I know that Nicad batteries can be damaged from being left in the car in sub freezing temperatures.  Is this also true of lithium batteries?  I'm in a northern climate where we experience below zero temperatures so I need to know if I have to keep bringing my lithium battery packs inside every time I park the car.

Question by etcmn   |  last reply


I'm new and looking for projects and ideas

Hi Just came acrosss the site todays looks great I am sure I will spend many hours (too many?) on the site reading the postings and adding some of my own. I am very inetersted in renewable energy and spreading the use to help reduce climate change. I run three websites in my spare time wher I make a very small amount of money and hopefully spread information and ultimately help in the battle against climate change. I would be inetersted in feedback on my sites. I wiould be happy also to post up some projects in ebook format for members. I am also looking for projects to add to my sites - could I buy these from people? Hope I haven't offenbded anyone with this post or broken any rules? Warm regards richard www.energybook.co.uk - information site with free information and downloads www.OneToRemember.co.uk - book and ebook shop with some free ebooks www.wxtrade.com - free to use auction and classified site - like ebay but free

Topic by onetoremember   |  last reply


Tomorrow

Tomorrow is the Science Fair at my school and I'm not finished yet. My aim is, Will Climate Change Affect The Growth Of Grass In The Next Ten Years? I've done the testing and I'm writing the conclusion. I need to know some plants that are sensitive to temperature changes. I have already searched and can't find any (I must have very bad searching skills). I also need to know what kind of chemicals that plants use. I'm kind of panicking right now!

Topic by DELETED_Gavabc123   |  last reply


Growing bamboo in northern climes

I live in the Panhandle area of Idaho. I'm very interested in growing bamboo for various projects. Has anyone had any luck with this plant in a northern climate? I have seen it grown in Portland, Ore., but its weather is milder than here. This area gets quite a bit of moisture and winters are not normally extremely cold -- compared to areas further east. Can anyone suggest a good book or website for getting started with bamboo?

Topic by IdahoDavid   |  last reply


C.O.P. Suit: Personal Protest Wear

Whoever does a DIY version first i will bake cookies, seriously: C.O.P Suit was inspired by the COP15 climate summit. The brief was to propose solutions for, or to comment on, the ongoing climate debate – using wearable technology and design as a medium. The C.O.P Suit is an experiment in personal protest wear, designed to address the by now almost ritualised stand-offs between police and demonstrators – what has ironically been described as the ‘folk dance of disorder’. The suit is composed of an armored protection sleeve connected to a megaphone-mounted helmet, offering protection as well as the possibility of voicing commands, orders or simply generating noise. The suit is designed as a purposefully ambiguous and (slightly) ironic artifact, echoing the fetishistic visual language of protesters and police alike – a comment on the similarity of the means each side employs. The C.O.P suit is designed to be completely self-sustainable – utilising kinetic energy from common gestures in a protest situation (the fist thrust triumphantly into the air, the swinging of a baton or the force of a strike to the armor) to power the megaphone, making rioting hard on the ears, but easy on the conscience. From: http://ciid.dk/education/portfolio/idp09/courses/performative-design/projects/cop-suit/

Topic by frenzy   |  last reply


Global Warming Instructables

The Stay Warm Contest is requesting our warmest solutions to make it through the rather rough winter we've been having. In particular, they want to see our favorite low energy solutions. Therefore, may we post instructables about warming up the climate in an attempt to stay warm? Thanks, Purduecer p.s. (Since I know in advance that some of you won't appreciate the humor, you should know that this post is done in jest. You have been warned.)

Topic by purduecer   |  last reply


Breeding Spiny Leaf Insects....what are the best conditions &amp; how many baby insects immerge from each egg?

Does climate play a factor with the incubation period? We currently have approximatly 50 eggs and i am curious as to how many baby spiny leaf insects hatch from each egg? And i'd like some idea's for keeping the eggs and the babies safe and in escape proof housing until they are big enough to join the adults.. thank you

Question by Bekk   |  last reply


Citizen Science Contest - SciStarter

Citizen Science Contest Millions of "regular" people are helping scientists discover galaxies, measure climate change, track species' migrations, monitor air and water pollution, and more through citizen science projects featured on SciStarter.com. Help make their experiences better by coming up with solutions to some real annoyances: stop critters from eating sunflowers planted to observe pollinating bees, help remind volunteers to reset rain gauges and report measurements, link activities to social experiences. Or, dream up your own home-based research project that involves public participation to advance a field of scientific research. The Challenges: To get you started, we've listed four specific--and very real--challenges sent to us by project organizers. These problems impact the experience of the participants, and/or the ability of the project to reach its full potential. Select one or more to solve or come up with your own creative solution to a challenge you face as a citizen scientist! - Create Inexpensive Hail Pads - Stop Critters from Eating Sunflowers - Help Participants Submit Their Data - Provide 1000 cheap, wireless climate data loggers Enter now! Contest closes January 21, 2013

Topic by scistarter 


Solar Generators - for emergencies and more

I've started an IndiGoGo campaign - 'Solar for Sandy' - to provide emergency solar generators to those devastated by Super Storm Sandy. I've started it because our Congress is useless.  It really, really, really bugged the hell out of me the way our Congress both disregarded and greatly delayed relief to the families suffering from Super Storm Sandy.  They made a bad situation much much more worse. So - unlike Congress - I decided to do something about it.  First, deliver mutual aid to New Jersey families with portable solar generators.  And the next time a climate disaster strikes we won't have to wait on Congress to do the right thing.  We'll route around their inaction and just get it done. I'm asking the Green Community on Instructables to join me.  Become a funder or spread the word widely so we can make this happen and provide relief.  One of the perks is a complete building manual for our iPower Station solar generator. Thanks for hearing me out - and providing a helping hand. Solar for Sandy  Excerpt from 'Build Your Own Solar Generator'

Topic by Jonlo   |  last reply


Can Anybody Top this Crazy Green Idea?

What is it? it's the side view of a solar peaking plant. With PV panels on the roof of a giant structure that would produce liquid air during periods of low demand, and augmented by solar work like a big energy storehouse that would be called upon during peak demand. During peak demand the liquid air would be vented into the atmosphere, causing it to snow in the desert in the summer.  It could also cause the formation of a permanent snowpack downwind of its' location.  

Topic by Mud Stuffin   |  last reply


How can i connect a solar air compressor to an A.C. so that it can cool my house?

I wanna build a project for my engineering educational syllabus plz guide me anyone how can i use solar air compressor to cool my house by A.C. Climatic conditions of my town :- Hot round 38/22 Celsius. and mostly moderate humid. Please guide me about my project

Question by    |  last reply


How do I make my own "potty patch" and get my small dog to use it?

I have a small pomchi and live in a very cold northern climate. We live in a main floor condo with access to green areas, but during the winter we get snowed in and he won't use the training pads he used as a puppy. My dog is over 5 years old now. I've seen the potty patch ads but can't get one in Canada. Please help!

Question by nubialopezroman   |  last reply


Does anyone know of a VERY fast-growing vine? Answered

My family is looking to get a little more privacy in our yard, but our municiple codes are pretty tough (read: anal) around here, so basically our only options for privacy fencing are slats (upwards of $1500 for our fence) or vines. So we are looking for some VERY swift-growing vines to plant. does anyone know any vines like this? hopefully something that will grow in a hot climate. and did i mention fast?

Question by cyc4015   |  last reply


$25 Million for Capturing Carbon

Gore and Branson have teamed up to sponsor an X-prize-like competition for capturing carbon dioxide. I love these types of competitions. Is anyone here on Instructables in a position to enter? With a bit of industry-sponsorship, this would make for a series of fantastic Ph.D projects. From: http://www.nature.com/news/2007/070205/full/070205-16.htmlA multi-million dollar prize is on offer to anyone who can invent a device that will remove significant amounts of carbon dioxide from the atmosphere. As one of the largest science prizes on offer, it is likely to attract huge interest globally in a bid to combat climate change.The initiative was launched today by British billionaire entrepreneur Richard Branson and former US Vice-President Al Gore in London.The US$25 million "Virgin Earth Challenge" Prize can be claimed for any invention that will remove "significant" amounts of carbon dioxide from the atmosphere - perhaps in the order of a billion tonnes a year. Current global emissions are more than 7 billion tonnes per year."The winner must be able to demonstrate a commercially viable design which will result in the net removal of anthropogenic, atmospheric, greenhouse gases each year for at least ten years without countervailing harmful effects," state the written rules of the competition. It must "contribute materially to the stability of the Earth's climate".The winning entry could be anything from manufacturing bacteria to install in industrial emissions pipes, to creating a system that buries CO2 underground, or even inventing artificial trees to breathe in the gas from the air.

Topic by ewilhelm   |  last reply


How can I convert 18v cordless drill battery to recharge laptop, compact camera charger?

I have 2 rechargeable 18v battery pack from cordless drill which I'm thinking of using as laptop charger and compact camera battery charger.  These packs comes with 220v adaptor.  Me and my 12yo son will be doing a week-long research for his school project (climate change) this Xmas break, backpacking in a remote island.  I was thinking of using this packs to recharge our gears and then send the depleted 18v battery for recharge, and so on.  Will this be possible?  Thanks everyone for the help.

Question by bongex 


Mold? Fungus? Anyone know what this stuff is? Answered

I have a small fire safe I use for storing documents and backup drives.  Yesterday I opened it to find this stuff growing on the inside.  It has a crunchy outer texture that crumbles if you touch it, and a bit of liquid inside.  It wasn't there two months ago when I last opened the safe, and I've never had problems with it in the year I've owned the safe.  I have moisture absorbers inside, and live in a dry climate.  Any ideas what this could be, and whether I can just wipe it down with cleaner or need to take stronger measure?  Thanks.

Question by El Mano   |  last reply