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I am often asked how carbon dioxide can have an important effect on global climate when its concentration is so small – just 0.041% of Earth’s atmosphere. And human activities are responsible for...

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As the effects of climate change become more widespread and alarming, U.N. Secretary-General António Guterres has called on nations to step up their plans for cutting greenhouse gas emissions. Every...

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As the effects of climate change become more widespread and alarming, U.N. Secretary-General António Guterres has called on nations to step up their plans for cutting greenhouse gas emissions. Every...

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August and September are peak months for harmful blooms of algae in western Lake Erie. This year’s outbreak covered more than 620 square miles by mid-August. These blooms, which can kill fish and pets...

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The economic foundation at the heart of conservative political philosophy is that markets are the best way to allocate the bulk of society’s resources. That faith in markets explains the Republican...

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The number of fires this year in the Amazon is the highest since 2010, reaching more than 90,000 active fires. Farmers and ranchers routinely use fires to clear the forest. But this year’s number reflects...

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Clouds of dust rose behind the wheels of the pickup truck as we hurtled over the back road in Palo Verde, El Salvador. When we got to the stone-paved part of the road, the driver slowed as the truck heaved...

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Behind the scenes during hurricanes and other disasters, scores of public information officers in state and local government agencies are fixed to their screens – often in 24-hour shifts – frantically...

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Indiana certainly doesn’t look like a state that’s ready to confront climate change. Its former governor, Vice President Mike Pence, has questioned whether human actions affect the climate. In 2016...

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The EPA on Aug. 29 unveiled a proposal to rescind regulations to limit methane emissions from the oil and gas industry. Critics said the rollback will worsen climate change and air quality. Reaction from...