
Warning Scale Unveiled for Dangerous Rivers in the Sky
Strings of ocean storms called atmospheric rivers flood California and other western coastlines, although sometimes they can be beneficial

Warning Scale Unveiled for Dangerous Rivers in the Sky
Strings of ocean storms called atmospheric rivers flood California and other western coastlines, although sometimes they can be beneficial

World’s “Third Pole” Is Melting Away
Even if ambitious climate targets are met, Himalayan glaciers could lose a third of their volume


Polar Vortex Could Knock Back Invasive Tree-Killers—for a While
Insects like the cold-hardy emerald ash borer could see mass die-offs, but survivors could have hardier offspring

Warming Arctic on Thin Ice
Scientific American collections editor Andrea Gawrylewski talks to managing editor Curtis Brainard about how warming in the Arctic affects us all. And glaciologist Elizabeth Case takes us out near Juneau to study and live on the shifting ice.

Food Shocks Are Causing Hunger to Spike
Extreme weather, armed conflict and mismanagement are ruining swaths of crops

Why Did Hurricane Michael Rev Up to Category 4 So Quickly?
Scientists have made major strides in recent years in understanding why storms rapidly intensify

Hurricane Michael Could Do Billions of Dollars of Damage
Some 84,000 homes are at risk from the major storm, one analytics firm projects

North Carolina’s Natural Hurricane Defenses Are Disappearing
Development and sea level rise are chipping away at the barrier islands that help shield the mainland

Extreme Flooding from Florence Likely, Due to a Convergence of Threats
Compound flooding can exacerbate the impacts from storm surge and rain

Enormous Iceberg Pirouettes after Splitting from Ice Shelf
The Delaware-size chunk of ice has been snagging on rises on the ocean floor

Sometimes Mosquitoes Are Just Thirsty
Mosquitoes want your blood for its proteins...or simply to hydrate on a hot, dry day.

World’s First Wind-Mapping Satellite Set to Launch
Data from the long-awaited Aeolus mission will address a major gap in the global forecasting system