United States

cheap green energy "stirling engine"

Tue, 03/06/2012 - 07:41 — kirby
Average: 3.5 (8 votes)

The stirling engine requires only difference in temperature to run generators, water pumps, or even power your automobile. i believe that our answear is in this 200 year old idea. it would not use fossil fuels and it would be as safe as your babies pacifire.

The roller coaster generator

Mon, 06/20/2011 - 14:54 — Abioseh
Average: 3.8 (10 votes)

This idea is something I've thought about for a while but haven't really researched to much. In theory, the way it would work, is that it would be an enclosed rollercoaser, the building of which would be a solar panelled pyramid. Normally at a theme park there aren't many treens so sunlight is plentiful. The rollercoaster itself would be powered magnetically, similar to the high speed railways used in China, which uses a fraction of the normal energy consumption.

vote_value: 
1

An elaborate Tree-raiser

Wed, 03/02/2011 - 04:48 — winniethepooh
Average: 3.8 (10 votes)

Every month, every neighborhood should host "Plant a Tree" day.  On this day, families from the neighborhood come together and plant trees in certain area.  Children could get community service hours, and it could also count as family bonding.  you would plant as many trees as you wanted to.  The trees would be sturdy trees that could live for a very long time.  Flowers, and other plants would also be available for planting.  The neighborhood could even create an orchard of different trees, or plant fruit trees for a local garden.

vote_value: 
1

CO2 conversion plant

Mon, 02/21/2011 - 02:06 — greenteen15
Average: 2.3 (7 votes)

Well id just like to start by saying that ive done alot of research on this alright here i go...

vote_value: 
2

Using global warming to combat global warming

Fri, 01/14/2011 - 02:32 — gorillamask2501
Average: 1.8 (10 votes)

In the summer, it can get up to 100 F degrees in some places. By using this excessive heat to heat up water, we can save coal by having already warm water to be boiled instead of cold water. This can reduce the amount of fossil fuels needed to produce energy by up to 30%!

vote_value: 
3