From gunpowder to polymers, DuPont has survived by adapting. Now the company is in the midst of its most audacious transformation. The goal: to improve the environment and make a fortune doing it. (more)
When Arnold Schwarzenegger was elected governor in 2003, the environment was not high on his agenda. Now it is. That matters, because where California goes, the rest of the country just may follow. (more)
Lighting is a $40 billion-a-year business, and getting the world to switch bulbs is a formidable task. Fortune's Marc Gunther lights up the race for a better bulb. (more)