By Don Willmott , Forecast Earth Correspondent
For example, check out the Aptera electric tri-wheel vehicle, a Jestonsesque conveyance that will certainly turn heads on the highway. It looks like it came from another planet.
I was also fascinated by Sungevity, a solar power company whose website zooms in on a satellite image of your roof, calculates what kind of solar system would fit there, and how efficient it would be. Cool stuff. Unfortunately, it's only for Californians right now, but that makes sense since the Golden State is pretty generous with solar subsidies.
Fortune also highlights Makani Power, a somewhat mysterious startup funded in part by Google's philanthropic foundation to discover ways to harness high-altitude winds for power generation. The idea is that higher up (above 1,000 feet), the wind is more consistent that it is at ground level. How do you do the generation up there and get the power down here? Beats me, and the company isn't sharing its secrets just yet, but feel free to take a peek anyway.
You do not appear to have Yahoo! Messenger installed. Click here to download and install it.
A strong economy would help the clean tech revolution get a foothold. And a weak economy will hurt it.
Hummers do not beat Priuses in eco-friendliness over their lifetime, and other urban legends debunked.
If all the roofs in the world were white, according to a new study, the effects of global warming would be significantly reduced.
Old pantyhose can become everything from a bungee cord to a scrubber to a paint filter.
Next time you're weighing your options, consult GoodGuide, a source for free, scientist-verified data on more than 60,000 products.
Use this interactive map to find people giving away free stuff, or who will take yours off your hands.