A Credible Path to 100 Percent Renewable Energy
Most of the world could run on renewable energy by 2050 at a quarter of the cost of the current energy system, all while saving lives.
These Mysterious Mushrooms Are Key to Our Planet’s Ecosystems
Interaction of forests and fungi plays a huge role in the Earth's global carbon cycle.
Severe Thunderstorms Top the List of Climate Disasters So Far This Year
Spring cold snaps were also costly in the U.S. and Europe.
How America Can Save Its Arctic Policy
At a major Arctic symposium, experts say that iceberg swarms, melting sea ice, and crumbling coastlines are disrupting ships and displacing communities.
At G20 Talks, the United States Makes a Bid to Stay at the Climate Table
In Hamburg, the American negotiators issued bold, sometimes confusing requests.
Simultaneous Widespread Global Heat Waves Are the New Norm
Late-spring warmth encircled the Northern Hemisphere, with records on every continent.
Mountains Are Warming Twice as Fast as the Rest of the World
To sustain mountain communities, we need more monitoring and better governance.
Will There Be a Trump Effect at the G20 Summit?
The G19 is set to rebuke the U.S. over its Paris withdrawal.
A Bigger Role for California at the Next United Nations Climate Summit
As the U.N. boosts the roles of city and regional governments, California Governor Jerry Brown has been appointed special advisor to COP23 in Bonn.
Technology Transfer Could Drive Down Global CO2 Emissions by 25 Percent
Exporting green technology will help lower emissions—but not without pools like the Green Climate Fund.