Tropical Depression 1

Tropical Depression Brings Early Start to 2017 Hurricane Season

Hurricane season is off to an early start this year with Tropical Depression 1 churning out over the Atlantic Ocean more than a month before the official start of the season. But while it’s an early bird, the storm won’t impact land and is expected to dissipate by Friday. It’s not unheard of to see storms form early, as the official season is a

hurricane joaquin

Here’s Your Early Hurricane Season Preview

Spring is in full bloom in the U.S., which means summer isn’t far behind. And with this march of the seasons, the risk for hurricanes returns. Inevitably, there is a desire to know how active the season is going to be as far in advance as possible. This season looks to be just slightly less active than average, which translates to a slightly


Fewer Freezing Nights

The growing season is underway in parts of the U.S., primarily in the Southeast. As the world warms, the average date of that last spring freeze is occurring earlier in the year, extending that season. While the longer growing season does have some benefits, it also raises concerns about both agriculture and health. Consistently warmer weather help


New Lightning ‘Eye in the Sky’ Could Improve Storm Forecasts

Lightning strikes the ground around the U.S. roughly 25 million times a year, but that’s nothing compared to the number of lightning flashes that stay up in the cloud, which happen five to 10 times as often. Now, there is a new eye in the sky watching out for all lightning types, which could improve forecasting of the severe storms that lightning

arctic sea ice

The World’s Ice Is Disappearing. This Winter Was a Prime Example

Last month, the National Snow and Ice Data Center announced that sea ice in both the Arctic and Antarctic Circles had reached a new low. In the Antarctic, where the summer season just wrapped up, rapid ice melt led to the lowest sea ice minimum ever recorded for the area. At the same time, on the other side of the world, the Arctic Ocean was


Climate Indicators

Learn more about the 10 key indicators of a warming climate


Arctic Sea Ice

Ice has both ecological and economic benefits and its extent could influence weather around the world.


El Niño

El Niño is a warming of waters in the equatorial Pacific that influences global weather patterns.


Ocean Acidification

Acidifying oceans can hurt coral reefs and shellfish as well as the people that rely on them for their livelihoods.


Carbon Dioxide

CO2 is a potent greenhouse gas and plays a vital role in regulating Earth's surface temperature through radiative forcing and the greenhouse effect


Extreme Heat

Increasing frequency and magnitude of extreme heat can affect health, power usage and more.


Snow Cover

A shorter snow season increases the amount of sunlight absorbed by the Earth’s surface and can further warm the planet.


Sea Level Rise

Sea level rise could force millions to leave coastal areas and cost the world trillions of dollars.


Land Ice

Melting land ice contributes to sea level rise.


U.S. Wildfires

Wildfires damage forests and release CO2.


Global Temperature

The global temperature is the clearest measure of how human greenhouse gas emissions are affecting our planet.