Rainfall reductions of up to 80% and torrential precipitation leading to severe flooding and landslides are the expected consequences across different areas of Latin America and the Caribbean from the impact of the El Niño phenomenon in 2027, according to a report co-authored by the General Secretariat of the…
The 2026 Report of The Lancet Countdown on Health and Climate Change finds that many of the health risks and harms of climate change grew faster in the decade since the Paris Agreement was introduced (2016–2025) than in the decade before it (2006–2015).
Life arose on Earth at least 3.5 billion years ago, and our planet has remained habitable ever since—not too hot, not too cold. These life-sustaining conditions are possible in part thanks to a built-in, carbon cycle–based climate "thermostat" that controls the amount of carbon dioxide in the atmosphere.
All water comes from somewhere. Researchers who want to know where it comes from rely on water isotopes, variants of water molecules with slightly different masses, as location identifiers. In particular, the specific ratio of heavy to light water isotopes is unique to the water's origin and processes it has undergone…
Red tide, a harmful algal bloom that produces toxins, is known for causing respiratory irritation in humans and killing fish in coastal waters. Recent research shows that the conversation is also shifting to include a more subtle neurological threat.
Antarctica's glaciers were changing long before satellites, weather stations or cameras captured their transformations, and they left behind clues. Along Marguerite Bay on the western Antarctic Peninsula, ridges of rocks and debris mark former glacier margins. For decades, scientists lacked direct evidence about when…
Greenhouse gas concentrations in the atmosphere rose to new record highs in 2025, locking in climate impacts that will persist for centuries to come, the United Nations said Tuesday.
The most prominent glaciers in Colorado thinned dramatically over the past year due to record-low mountain snow and record-warm temperatures, according to new research.
People living in coastal communities sometimes have only minutes to reach a safe spot after an earthquake-triggered tsunami. But will the evacuation route that they've chosen lead them to safety?
The effects of El Niño are being felt globally, ranging from floods in Argentina to deadly fires in Peru and drought in French Guiana, and prompting a U.N. call for speedy action to face an unprecedented "wrecking ball" this year.
Indian authorities ordered evacuations in southwestern Andhra Pradesh ahead of a severe cyclone expected to make landfall by Wednesday, the national weather office said.
Ongoing research is providing a clearer picture of how climate change can affect different aspects of the Coorong in South Australia—and is helping develop strong environmental strategies that can be adapted as the climate changes.