Humans ignite almost every wildfire that threatens homes

Summer and fall are wildfire season across the western U.S. In recent years, wildfires have destroyed thousands of homes, forced hundreds of thousands of people to evacuate and exposed tens of millions to harmful smoke.

Systems analysis for a new Arctic

The Arctic region has long been seen as one of the Earth's most remote frontiers. However, the Arctic is changing quickly, which is important in global governance, geopolitics and the global economy. Temperatures have warmed ...

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