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Massachusetts, California Lead U.S. In Energy Efficiency

Massachusetts and California lead the U.S. in energy efficiency, according to annual ranking.

LEDs are a Bright Idea Whose Time Has Come

LEDs could help slow global warming and illuminate the developing world. Now that's worth a Nobel Prize.

The Fuel You Use For Heating Depends on Where You Live

How you heat your home depends a lot on where you live, and it has implications on your carbon footprint.

The $90 Trillion Climate-Stabilizing Cookbook

A new report shows how the world could become wealthier by spending more on clean energy infrastructure.

China Works Toward Kicking its Coal Habit

The world's biggest greenhouse gas emitter might be getting serious about kicking its coal habit.

How Climate Friendly is Bike Sharing? It’s Complicated

There's a lot scientists don't know about how bike sharing programs encourage less driving.

6 Degrees: Star Wars, Energy Ranks, Cool Pics & More

Find out what you missed in climate news this week in our 6 Degrees weekly roundup.

U.S. Gets Lackluster Energy Efficiency Ranking

The U.S. scored 13th in global energy efficiency ranking, or near the bottom of the world's 16 largest economies.

New Report Outlines ‘Pathways’ to Cut CO2 Emissions

There are pathways to reduce CO2 emissions and meet a key climate target but time is running out.

Basis for EPA Clean Power Plan Cuts a ‘Mystery’

The biggest CO2 emitter won’t need to make the biggest emissions cuts under the EPA's Clean Power Plan.

Clean Power Plan Exempts Major CO2 Emitters

The Clean Power Plan may allow some coal-fired power plants to operate without having to slash CO2.

Renewables as Tourist Attractions? Only in Germany

A guidebook selling well in Germany details 200 renewable energy sites it thinks will appeal to tourists.

Map Shows Energy Installations In Extreme Weather’s Path

Energy Information Administration's online energy map shows infrastructure in path of extreme weather.

Drought Prompts Fear of Blackouts at World Cup

Brazil’s worst drought in decades is severely reducing hydropower energy supplies in advance of World Cup.

IEA Graphic Shows How to Radically Reduce CO2

The IEA's fascinating graphic shows how radically CO2 emissions need to be reduced by 2050.

New Design Delivers Round-the-Clock Solar Power

With a new design, the power of the Sun can now keep electricity turbines running both night and day.

Building Bike Commuters, One Bike Lane at a Time

Bicycle commuting can improve health and mitigate climate change, but states are in neutral.

Tech Giant Apple Details Its Progress on Climate Targets

Tech giant Apple claims that 94 percent of its corporate facilities are now powered by renewable energy.

At-Risk Cities May Help Drive Climate Change Solutions

Smart choices by cities like Miami in planning & investment could hold key to cutting emissions.

Major Greenhouse Gas Reductions Needed by 2050: IPCC

IPCC report's last installment says major shift to renewable energy needed to limit CO2 emissions.

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Fall Temperature & Rainfall Trends A look at how both precipitation and temperature have changed this season since 1970.

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