What is ‘committed warming’? A climate scientist explains why global warming can continue after emissions end

Before people began burning fossil fuels to power factories and vehicles and raising methane-emitting cattle in nearly every arable region, Earth’s energy budget was roughly in balance. About the same amount of energy was coming in from the Sun as was leaving.

What is chronic wasting disease? A wildlife scientist explains the fatal prion infection killing deer and elk across North America

Chronic wasting disease is contagious and relentless. There is no cure, no way to test living animals, and once infections are introduced into wild populations, there is no realistic way to stop them from spreading.

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