Kevin Trenberth

Hurricane Michael 2018

Warm waters in the Gulf of Mexico raise alarm as US storm season approaches

On Easter Sunday, dozens of tornadoes tore across Southeastern US, killing more than 30 people. The deadly cluster of storms coincided with waters in the Gulf of Mexico that were three degrees Fahrenheit warmer than the long-term average.

Warm waters in the Gulf of Mexico raise alarm as US storm season approaches
"So much rain has fallen," the National Weather Service tweeted about Harvey on Monday, "we've had to update the color charts on our graphics in order to effectively map it."

Harvey may have caught Texas by surprise, but other places have been getting ready for more extreme weather

Harvey may have caught Texas by surprise, but other places have been getting ready for more extreme weather
El Niño Makes Atlantic hurricanes less likely.

Welcome to the 'Double El Niño' — and more extreme weather

Welcome to the 'Double El Niño' — and more extreme weather
"Spring is coming" — A pedestrian walks past a pile of snow in Boston.

How is the world getting both a) warmer and b) snowier in some places? Here's how.

How is the world getting both a) warmer and b) snowier in some places? Here's how.
Funny River fire

June set a new global temperature record

June set a new global temperature record

The Balkans' flooding is linked to climate change. And here's how

Record flooding in the Balkans is just the latest extreme rain event influenced by climate change. A leading climate researcher explains why we need to get ready for more.

The Balkans' flooding is linked to climate change. And here's how
Dust storm Melbourne Australia

The Pacific Ocean is gearing up for a big El Niño

El Niño became famous years ago, with jokes on late night TV shows and much media coverage — sort of like that year's polar vortex. It looks like El Niño will make its presence known again this year.

The Pacific Ocean is gearing up for a big El Niño
Australia smoke

In Australia, raging early spring wildfires have rekindled a raging debate over climate change

Australia has had a rash of wildfires caused by unseasonably hot and dry weather. Scientists say the risk of fires is growing with climate change, but the country's new prime minister says they're just a normal part of life down under.

In Australia, raging early spring wildfires have rekindled a raging debate over climate change

Superstorms and Climate Change

Hurricane Sandy grew over days to become a monster of a storm when it finally hit the East Coast. Climate scientists note that global warming likely contributed to the making of this "Frankenstorm."

Superstorms and Climate Change

California Burning

As California's wildfires die down, some argue development in parched areas of the US should be sharply curtailed. And climate experts say global warming helped exacerbate the destruction this year.

California Burning

Tracking El Nino

El Nino is back-- and may be to thank for what- so far- has been a tamer hurricane season.

Tracking El Nino

Hurricanes and Global Warming

Hurricanes and Global Warming

Drought and Climate Change

Drought and Climate Change

Welcome to the Future: It's Warm

Welcome to the Future: It's Warm

El Niño Acting up

El Niño Acting up