Weather

Both Harvey and Irma intensified due to perfect storm conditions

A veteran of New Orleans and San Antonio hospitals talks about health challenges in the wake of Harvey and Irma

Here’s how Irma compares with Katrina, Patricia, Haiyan and other record holders

Using insurance industry models, researchers determined that wetlands prevented some $625 million in damages due to Hurricane Sandy. Christopher Intagliata reports.

The threat from the Category 5 storm has shuttered the world’s second-largest radio telescope until further notice

If Irma makes landfall, it will be the first time in recorded history that two hurricanes Category 4 or higher hit the U.S. in a single season

Peroxides at a Texas plant, owned by the company Arkema, are “one small step away from ignition”

A lack of clean drinking water, the spread of disease and mosquito breeding grounds are just some of the potential problems

They can also form towers as high as 30 ants tall

Drone pilots say they can save lives, but emergency responders want them grounded

Essential operations to support the International Space Station will continue, with the center reopening on September 5

The city is limited by reliance on slow-draining bayous to carry out the rain