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Why 2015 Will Be the Hottest Year on Record

Increasing greenhouse gases are the overwhelming reason why 2015 will be the hottest year on record.

Where Cows and Coal Rule, So Does CO2

Per capita carbon emissions are falling, but Wyoming's are still seven times the national average.

The $100 Billion Climate Question

Rich counties pledged to provide $100 billion a year in climate financing for poorer ones. Where is it?

Unmitigated Climate Change to Shrink Global Economy

New study predicts that rising temperatures due to climate change will wreak havoc on economic output.

Transportation Emissions Could Be Cut in Half by 2050

Carbon emissions from the transportation sector could be halved by 2050 with two key steps.

The Forgotten U.N. Climate Goal: 1.5°C

Island nations and others are desperate to keep global warming to less than 1.5°C, or 2.7°F.

U.K. Plans to Shutter All Coal-Fired Power Plants by 2025

The U.K. plans to close all of its coal-fired power plants by 2025 to address climate change.

U.S. Thirst for Oil Straining International Water Supplies

U.S. energy demand strains global water supplies in a warming world.

G20 Spending on Fossil Fuels Dwarfs Renewables

G20 countries spend almost four times as much to prop up fossil fuel production as they do to subsidize renewables.

In Turning Point, Carbon Emissions Fall Among G20

Greenhouse gas emissions per capita are falling in 11 of the Group of 20 major economies.

Shifting Gears to Cycling Would be Big Climate Boost

A shift from driving cars to cycling in big cities would become a major climate benefit.

Energy Transition Underway Ahead of Paris Climate Talks

An International Energy Agency report shows that a global transition to cleaner energy is underway.

Paris Pact May Hinge on ‘Loss and Damage’ Dispute

Vulnerable countries want financial help from rich ones to cope with climate change disasters.

New Fees Seen to Weaken Demand For Rooftop Solar

New fees may be chilling demand for residential rooftop solar installations in some regions.

Mapping Choices: Sea Level Rise Around the Globe

Our analysis details the implications of different warming scenarios for every coastal nation and megacity on the planet.

Renewable Energy Supply to Double in Major Economies

Renewable energy supply in eight major economies will more than double by 2030.

China Underreporting Coal Consumption, Data Says

Data suggests China has emitted close to a billion additional tons of carbon dioxide into the atmosphere each year.

Obama Administration Rejects Keystone XL Pipeline

President Obama said Friday that the pipeline would not serve the national interest of the United States.

50 Years After Warning, No Debate in Paris on the Science

U.N. negotiators will have a lot of disputes to worry about in Paris — climate science is not one of them.

Obama Likely to Make Keystone Decision By End of Term

The White House says President Obama will decide on the Keystone XL pipeline by the end of his term.


Highest Levels in 800,000 Years This is the first time in at least 800,000 years, and possibly as long as 2 million, that levels have been this high.

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