The kingdom is trying to juggle its still-vital petroleum industry with alternative energy sources like wind and solar as it faces pressure to lower carbon emissions.
Administration officials worry their plans to fight climate change could falter unless electric grids can quickly expand to handle more wind and solar power.
Paris is becoming a city of bikes. Across China, people are snapping up $5,000 electric cars. On Earth Day, a look at a few bright spots for emission reductions.
A mining company wants to build a 211-mile industrial road through Alaskan wilderness to reach a large copper deposit. The Interior Department says it would harm wildlife and communities.
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