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History shows what happens when man doesn't play well with nature. Read about three civilizations that fell when their local ecosystems could no longer sustain them.
The company is flying relatively quiet today. But there are indications that IBM—yes, IBM—could emerge as a solar powerhouse, according to columnist Neal Dikeman, who's done some poking around.
Columnist Rob Day encourages investors to remember that there's no such thing as free love, lunch, er, energy. And that companies claiming otherwise risk jeopardizing the credibility of whole sectors.
Like the percolation inside a fuel cell, contributor Rob Day thinks he sees tiny bubbles forming in the cleantech biofuel sector. That doesn't mean investors should run away, he says. Only that they should just look before they leap.
It's not easy being a young female science officer in a man's world, as writer Mary Beth Barber discovered upon meeting Shawna Brown, co-founder of High Merit Thermoelectrics, a cleantech startup in Sacramento, California.
The price of water is rising, and rising especially fast in some areas. What gives? Edwin H. Clark II details what's behind the price people around the world pay for water.
Columnist Neal Dikeman of Jane Capital Partners wonders when investors will put their money where their mouths are when it comes to water.
What's green about nuclear power? Well, it's cheaper, irradiates the planet less than coal and oil, and is less harmful to the environment than hydro, notes commentator and nuclear expert Joseph Neil.