As its 20th anniversary approaches, what can the landmark agreement on controlling CFCs teach those who want to control greenhouse gases?
In his lab facing the Pacific Ocean, Daniel Morse is learning new ways to build complex semiconductor devices for cheaper, more efficient solar cells. He has an unlikely teacher: sea sponges.
By investing in energy efficiency, we could vastly reduce carbon dioxide emissions and save money.
28 Years Ago in TR: "Massive ocean thermal energy conversion plants may be turning this heat to usable electricity by 1985." -- William F. Whitmore
A consistent strategy is the key to a successful nuclear future.
The best scientists, scrutinizing atmosphere, ice, earth, and sea, say global warming is approaching a tipping point. But we still have time to keep it from reaching catastrophic levels.
We know where we must go eventually: toward a sustainable energy infrastructure. Why not head there now?
Better technologies exist for extracting coal, a major source of carbon dioxide emissions. The challenge is getting people to adopt them.
Genetically engineered organisms can more efficiently produce ethanol from cheap and abundant sources of biomass, such as agricultural waste. It could make ethanol cost competitive.
Grid computing is becoming an affordable utility for everyone.