Scientists are warning us vehemently that we have to be net zero carbon by 2050, and we have to jump on getting there right now, or else very bad things will happen.
Cover enough ground with wind turbines and solar panels and you change the local climate, green the desert and could even boost the Sahara’s rainfall.
Imagine a world with so much renewable, clean energy that it could provide all the electricity society needed, reliably and without any interruption, round the clock. That could soon be a reality.
There are some problems clean energy from wind and sun cannot solve. Two new studies provide a roadmap of the challenges ahead.
The need to stop global warming in its tracks has spurred the growth of wind and solar technologies that are helping reshape the electricity industry.
Energy efficiency, renewable energy sources and radical changes to diet together can save the planet.
The Roman Catholic leader forthrightly reminds oil company CEOs that climate change is a moral issue.
Five of the world's largest solar installations are under construction there, and a sixth is in the pipeline.
Mexico plans to produce 43 percent of its electricity from renewables within six years.
Republicans who for years have voted against subsidies for solar and wind power are now eager to have government subsidize coal. Meanwhile, China’s success in renewables grows.