The severe, drought-fueled fires now burning across much of the American West and Canada may be scorching forests so thoroughly that they cannot recover to the forests they once were, new research shows.

An ongoing drought in Europe has sapped French rivers. Officials say that 43 percent of small waterways in France have been partially or completely dried up.

For several years, climate scientists have shown that the Atlantic Meridional Overturning Circulation (AMOC) could come to a halt if the world warms too much. 

El Niño is expected to intensify in the weeks ahead, fueling more severe heat across the globe, according to the U.N. World Meteorological Organization. 

The American Meteorological Society released its annual report on the global climate this week, with many researchers from the University of Alaska Fairbanks participating. 

From the American West to Europe, droughts are drying up rivers, fueling destructive fires and reshaping ecosystems.

As record-breaking heat grips communities worldwide and Australia prepares for an intense El Niño summer, new research provides the first global review linking high temperatures and heatwaves to poorer mental health in children and young people.

Scientists have uncovered a previously unknown natural process that dramatically increases the number of cloud-forming particles in the Arctic atmosphere - potentially altering cloud cover, sunlight reflection, and future climate change.

The devastating impacts of marine heatwaves extend far beyond dying coral reefs and declining fisheries, with new research warning these extreme ocean warming events are posing a growing threat to humans’ physical and mental health.

Botany professor Ansgar Kahmen has been studying Switzerland’s forests for years.