General Electric will on Thursday reveal that it has doubled sales from environmentally friendly products to $12bn over the past two years, in the strongest sign yet that corporate America’s drive to respond to climate change is beginning to pay off.

At an event with Arnold Schwarzenegger, California’s governor, in Los Angeles, Jeffrey Immelt, GE’s chief executive, will say the company has $50bn of projects in the pipeline and is on track to meet its target of $20bn in “green” sales by 2010.