
Balance Between CO2 and Warming Means Life or Death for Trees
The question of whether CO2 gives forests a boost or heat stresses them may depend on how quickly temperatures rise
Chelsea Harvey covers climate science for Climatewire. She tracks the big questions being asked by researchers and explains what's known, and what needs to be, about global temperatures. Chelsea began writing about climate science in 2014. Her work has appeared in The Washington Post, Popular Science, Men's Journal and others.

Balance Between CO2 and Warming Means Life or Death for Trees
The question of whether CO2 gives forests a boost or heat stresses them may depend on how quickly temperatures rise

Urban Heat Islands Mean Warming Will Be Worse in Cities
The effect needs to be factored into adaptation strategies, which will differ from city to city

The World’s Winds Are Speeding Up
The trend contradicts concerns of a “global stilling,” with implications for wind energy

Possible Links between Warming and Tornadoes Are Still Murky
New research finds connections between ocean temperatures and tornado activity

What Greenland Might Have Taught Trump about Warming
The ice-covered island, which is not for sale, is on the front lines of climate change

Earth Stopped Getting Greener 20 Years Ago
Declining plant growth is linked to decreasing air moisture tied to global warming

To Halt Warming and Ensure Food Supplies, Land-Use Practices Must Change
A much-anticipated U.N. report explores the links and feedbacks between climate change and Earth’s land surface

July Was the Hottest Month in Recorded History
After a record-breaking heat wave in Europe and the Arctic, last month edged out July 2016

Historic Greenland Melt Is a “Glimpse of the Future”
A major heat wave pushed melting into areas of the ice sheet that normally stay frozen year-round

3 Things to Watch as Summer Heat Bakes the Arctic
Sea ice levels are running very low as wildfires rage

Current Warming Is Unparalleled in the Past 2,000 Years
Today’s climate change is unique in its global scale compared to other historical periods

U.S. Cities Might Release More Methane Than Previously Thought
The combined emissions of six cities is more than some of the biggest natural gas production centers

Humans May Be Accidentally Geoengineering the Oceans
Iron particles released by industrial activities are falling into the seas in greater quantities than previously thought

Small Temperature Bumps Can Cause Big Arctic Methane Burps
Warming can encourage the growth of microbes in permafrost that produce more greenhouse gases

Cold War Spy Satellites Reveal Substantial Himalayan Glacier Melt
Ice melt in the mountain range today is twice as fast as it was before 2000, once-secret images show

Pace of Heat Records Will Pick Up with Warming
If greenhouse gases are not curbed, 60 percent of the world will set monthly records by century’s end

Storms, Salty Water Caused Mystery Hole in Antarctic Sea Ice
Robotic floats and elephant seals helped solve the mystery of the formation of features called polynyas

Meeting Climate Targets Would Prevent Thousands of U.S. Deaths
Limiting global temperature rise to 1.5 or 2˚C would reduce deaths during future heat waves

Mass Puffin Die-Off May Be Linked to Climate Change
Rising ocean temperatures and melting ice are disrupting the birds’ food sources

“Tug-of-War” between Air Pollution and CO2 Masks Warming’s Impacts
Rising pollution in Asia is contributing to weaker monsoons, the opposite of what is expected with climate change

Turn Methane into CO2 to Reduce Warming, Experts Propose
Converting methane into a less potent greenhouse gas would need to be done along with overall emissions reductions

CO2 Levels Just Hit Another Record—Here’s Why It Matters
Atmospheric carbon dioxide recently reached 415 parts per million for the first time

In “Vicious Cycle,” Snowmelt Fuels Wildfires and Wildfires Melt Snow
This feedback poses major concerns for western water resources and wildfire risk

Global Warming Has Been Influencing Drought for a Century
Tree rings from around the world match what climate models have suggested