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This year, federal forecasters say the planet could see the strongest El Niño event on record. Here's what you need to know.
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A powerful El Niño is already influencing extreme weather around the planet. During the last strong El Niño, federal agencies ramped up research in the hope of improving weather forecasts. This year, they won't be matching that effort.
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Switzerland's glaciers are disappearing at a record pace. More than 5% of their ice has vanished this year alone — threatening water supplies, ecosystems and communities across Europe.
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The Pacific Ocean has had an unusual number of storms this year, while the Atlantic hasn't recorded a single full-blown hurricane. Scientists point to an exceptionally strong El Niño.
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Across the country, lost-and-found networks seek to reunite objects with disaster survivors. The work can take years. In some cases, it's impossible to pick up all the pieces.
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Coral reefs are under threat right now due to abnormally warm ocean temperatures. Scientists are studying the healthiest reefs in the world in search of ways to help all reefs with climate change.
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NPR dug into the upside-down world of FEMA flood insurance in coastal areas, and found many homeowners have no financial choice but to let their homes collapse.
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The Trump administration is eliminating limits on climate-warming pollution from the nation's fossil fuel power plants. Environmental groups say this will impact the climate and public health.
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Scientists say that August was the hottest month ever recorded globally. In the U.S., summer temperatures also shattered heat records.
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Heat kills thousands of people across the U.S. every year. The risk is especially high for the millions of Americans who live in manufactured housing like mobile homes and trailers.