Raw materials behind half of global emissions: UN

Extracting and processing materials, fuel and food contributes as much as half of the world's greenhouse gas emissions, the UN said Tuesday, as experts gathered in Kenya to find ways to rein in exploding global consumption.

America can afford a Green New Deal – here's how

U.S. Rep. Alexandria Ocasio-Cortez and Sen. Ed Markey are calling for a "Green New Deal" that would involve massive government spending to shift the U.S. economy away from its reliance on carbon.

Greener hydrogen from water

The idea of using hydrogen as the basis of a clean sustainable energy source, often termed a hydrogen economy, has been a topic of conversation for decades. Hydrogen fuel, for example, doesn't emit any carbon dioxide and ...

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