Hurricane Katrina—which made landfall in Louisiana in August 2005—is among the worst natural disasters to ever hit the United States, devastating communities across the Gulf Coast and forcing more than 1.5 million residents to evacuate their homes.

In a groundbreaking study, researchers from the University of Bern and ETH Zurich have shown how climate change is intensifying supercell thunderstorms in Europe.

A University of Hawaiʻi at Mānoa study shows a species of tilapia grows 15% faster in a system that recirculates artificial saltwater than in freshwater.

A growing number of people globally are seeing wildfires encroach on their homes.

Climate change. Pollution. Less ice. Exploitation of natural resources. Lack of understanding. Indifference.

The recent landslide-generated tsunami in Tracy Arm of Southeast Alaska recalls the granddaddy of them all: the giant wave that scarred Lituya Bay in 1958.

Surprising satellite data reveals that the amount of ozone-depleting chlorine in the stratosphere is not decreasing as quickly as expected.

A significant contribution in South Australia by global technology company Trimble will build new capacity into the research and education opportunities at Flinders University.

John Mutter remembers seeing the roofs of single-story homes poking above the water level in the Lower Ninth Ward in New Orleans.

So-called “100-year weather events” now seem almost commonplace as floods, storms and fires continue to set new standards for largest, strongest and most destructive.