Hydroponics is not only an enjoyable hobby, it is also a green one.
Hydroponics use as little as 10%
of the water needed for plants grown in dirt , and results in higher yields
due to the plants always having the necessary nutrients available to them when they need it.
Being a closed system, it also means that fertiliser is kept out of the water table, which is great for the environment.
An added benefit is that there is a less chance for weeds and dirt bound insects to attack your plants, so there is less of a need for chemical poisons.Going further
Keeping with the green spirit, this instructable uses recycled materials where possible, and uses a low power pump, to keep electricity use low.
From using old PVC pipes, an old wooden baby's crib and other miscellaneous junk, not only is the cost kept down, but so is the waste.
As for power, the only thing needed is a water pump.
A small submersible pond pump kept the power usage down to a small 18 watts, which is about that of a CFL and less then a third of an Aerogarden!
When it comes to lights, it is hard to beat the Sun!
Free, effective and carbon neutral, it provides the exact spectrum that plants have evolved to use.Food
By growing food in my garden, it is a little bit less food I need to buy, a little less food that has been shipped across country, by trucks.
No packaging, and no transport makes this food the greenest in my kitchen.