September marks the end of the summer sea ice melt season and the Arctic sea ice minimum, when sea ice over the Northern Hemisphere ocean reaches its lowest extent of the year. For ship captains hoping to navigate across the Arctic, this is typically their best chance to do it,

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The U.S. Environmental Protection Agency has finalized a rule to start eliminating a class of climate-warming chemicals that are widely used as coolants in refrigerators, air conditioners and heat pumps. If that plan feels like déjà vu, it should. These chemicals, called hydrofluorocarbons, or HFCs, were commercialized in the 1990s

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A busy 2021 Atlantic hurricane season is in full swing. The year’s 18th named storm, Sam, has become a hurricane. Meanwhile, some residents in the parts of Louisiana hit hardest by Hurricane Ida in late August are still waiting for their power to be restored. And thousands of Texas residents

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You’ll probably hear the term “net-zero emissions” a lot over the coming weeks as government leaders and CEOs, under pressure, talk about how they’ll reduce their countries’ or businesses’ impact on climate change. Amazon, for example, just announced that more than 200 companies have now joined its Climate Pledge, committing

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Waves of disaster have earned Louisiana a reputation as the place to watch for how climate change will impact coastal areas. Hurricane Ida was merely a punctuation mark in a series of devastating tropical cyclones, tragic inland floods, epic oil spills and deadly epidemics. Despite these all-too-frequent catastrophes, many residents

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Two important global events are coming up that are widely hoped to help address what the United Nations calls the “dual challenge” – fighting climate change and ensuring that poorer countries can develop sustainably. Energy is a central theme in both. For the first time in 40 years, the U.N.

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People’s views about climate change, from how worried they are about it affecting them to how willing they are to do something about it, have shifted in developed countries around the world in recent years, a new survey by the Pew Research Center finds. The study polled more than 16,000

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The Western U.S. is experiencing another severe fire season, and a recent study shows that even high mountain areas once considered too wet to burn are at increasing risk as the climate warms. With more than 5 million acres already burned by early September, the 2021 U.S. fire season is

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President Joe Biden has called for major clean energy investments as a way to curb climate change and generate jobs. On Sept. 8, 2021, the White House released a report produced by the U.S. Department of Energy that found that solar power could generate up to 45% of the U.S.

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Record downpours from Hurricane Ida overwhelmed cities across the Northeast on Sept. 1, 2021, hitting some with more than 3 inches of rain an hour. Water poured into subway stations in New York City, and streets flooded up to the rooftops of cars in Philadelphia. The storm had already wreaked

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