Stories by Chelsea Harvey

Artificial intelligence taps historical weather data in forecasting, but the changing climate is complicating such efforts

Tens of thousands of people died during intense heat waves in Europe last summer, indicating that heat prevention plans aren’t protecting vulnerable populations

Early warning about impending weather disasters is almost impossible across large, low-income regions of the world

Extreme rainfall is increasing in the Northern Hemisphere’s mountain ranges as global temperatures rise, raising the dangers of floods and landslides

Heat Wave Yago is baking Seville, Spain, the first city in the world to introduce a heat wave naming and ranking system

Record ocean temperatures in the Atlantic are causing storms to form much farther east than usual

New research finds that the area burned by wildfires during summer in California has increased fivefold since 1971 because of more arid conditions caused by climate change

Ontario and Quebec could see wildfires grow more intense and frequent as a changing climate brings unusually hot and dry conditions

A new study finds that Arctic sea ice could disappear in the summers as early as the 2030s, a decade earlier than previously thought

Researchers calculated that high-emitting countries, including the U.S., should pay $192 trillion in compensation to low-emitting nations

A new study found more than 5,000 new species in the Clarion-Clipperton Zone, a mineral-rich area of seafloor that companies aim to mine for critical materials

The Montreal Protocol was intended to save Earth’s ozone layer, but it also helped slow global warming and delayed the melting of Arctic sea ice

New research says climate change was responsible for yet another withering heat wave, which baked South Asia in April

Permafrost can—incongruously—be found in Hawaii, but surveys show it has been shrinking over time, in part because of climate change

Efforts to eradicate invasive rats that have decimated native species on islands around the world are beginning to bear fruit

Commercially valuable Dungeness crabs lose their sense of smell as the ocean absorbs more carbon dioxide and becomes more acidic

High temperature records have been set from Portugal to Thailand as heat waves fueled by climate change have arrived early this spring

Many bird species are producing fewer offspring as global temperatures rise, and larger migratory species are particularly affected

Melting sea ice is opening new pathways through the Arctic such as the famed Northwest Passage. But it is also reducing visibility and potentially causing delays

Communities in certain spots around the world, such as Afghanistan, Papua New Guinea and Central America, are likely to experience record-breaking heat events but may not be prepared

Greenland’s Steenstrup Glacier doubled its annual ice loss in just a few years, thanks to warm ocean water

Sea levels off the southeastern U.S. have risen more than a centimeter a year over the past decade—about triple the global average—and the effects on communities near the Gulf of Mexico and Atlantic Ocean already are being observed

Evidence that ancient glaciers retreated more than a quarter-mile a day is a worrisome sign that glaciers today could melt—and contribute to sea-level rise—faster than was thought

A new study documents the mysterious presence of five banned chlorofluorocarbons, chemicals that not only deplete the ozone layer but also contribute to global warming