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Why a 2°C Target for Paris?

Learn why world leaders, scientists and policymakers are sticking to a 2°C target at Paris climate talks.

America’s Global Plan for Warming Has Domestic Roots

The U.S. appears set to get most of what it wants in Paris — a new approach to global climate action.

Countries Pledge $10 Billion For Clean Energy Fund

World leaders took a major step this weekend toward speeding up the development of clean energy.

COP21 Explained: Why 2°C?

You're likely to hear the term 2°C a lot during the next two weeks.

Transatlantic Airlines Show Big Fuel-Efficiency Gaps

The biggest transatlantic airlines are up to 51 percent less fuel-efficient than their smaller lower-cost rivals.

Global Investments in Climate Change on the Rise

Climate change investments are up 18 percent in 2014 as clean energy surges.

This is the Globe’s Hottest Five-Year Period on Record

2015 will go down as the hottest year and a punctuation mark on the hottest five-year period on record.

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.

Global Warming Key Driver of 2015’s Record Heat

2015 is virtually certain to be the warmest year on record, with global warming driving that excess heat.

Where Cows and Coal Rule, So Does CO2

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

2° Challenge: Try to Avoid Disastrous Climate Change

Take the quiz to see if you can stop warming short of 2°C, a threshold world leaders agree we don’t want to cross.

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.

What Passing a Key CO2 Mark Means to Climate Scientists

We're likely living in a post-400 ppm world. Here's what it means to scientists that study the climate.

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.

Climate Matters: States At Risk

States at Risk: America’s Preparedness Report Card summarizes the changing nature of key threats and corresponding levels of preparedness in…

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.


Changing Rainfall Patterns in the U.S. Since 1900, the average annual precipitation is up 5 percent for the continental U.S.

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