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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.

Driven by Ocean Heat, World Sets Mark for Hottest June

Oceans were the hottest they've been on record this June, leading to a month of record heat across the world.

Renewables Revolution Could be in Management, Not Tech

Renewables revolution over the next decade may exist in how power is managed, not in new technology.

U.S. and China Lead the Way on Carbon Capture & Storage

A new China-U.S. agreement looks like giving much-needed stimulus to development of the technology.

6 Degrees: Costly Weather, Drought, Fires and the Heat

Extreme weather dominates the top climate stories that happened this week and there's a quiz too.

As Arctic Ice Melts, Polar Bears Find a New Menu

As Arctic ice, and access to seals living there, disappears, polar bears adapt to a land-based diet.

Picture This: Twin Waterspouts and Amazing Aurora

In this week's Picture This, we've got an amazing aurora Vine, a typhoon's mean eye, and twin waterspouts.

What’s Behind Super Typhoon’s Rapid Intensification?

Rammasun looked ragged after its trip over the Philippines, but became a Super Typhoon before hitting China.

Planet is Running a Temp: State of the Climate ‘Check-Up’

A new report -- the latest checkup on the health of the global climate system -- says the planet is running a temperature.

Fires in NW Territories in Line with ‘Unprecedented’ Burn

The wildfires searing the Northwest Territories could be a harbinger of things to come in a warming world.

So You Think You Know Renewables? Take the Quiz

Though renewables have advanced since they were invented, it might surprise how long they've been around.

Weather Disasters Have Cost the Globe $2.4 Trillion

A new report shows just how costly climate- and weather-related disasters are across the globe.

Six Months In and Sizzling California Sets Record

January-June 2014 was the warmest first half to a year in California, helping fuel the state's drought.

Groundwater Is Drought Lifeline for California Farmers

Groundwater has helped farmers trying to survive the California drought, but losses are still heavy.

Polar Vortex or Not, Cooler Temps Invade Eastern U.S.

At the hottest point of the summer, a collision of air masses has sent cooler temps invading the eastern U.S.

Interactive: 1,001 Blistering Future Summers

Models show summers are going to keep warming as emissions continue. See what this will warming feel like.

Military Bases Face Hurdles in Climate Change Adaptation

The military is already looking at its climate change vulnerabilities but more needs to be done.

Long Wait Continues as El Niño Lagging

Though conditions are still favorable for El Niño to develop, another month passes with no official declaration.

6 Degrees: Hot Summers, a Few Tornadoes & Cows, Pigs

Summers get hotter, tornado season fizzles, cow manure worsens methane, plan to cut CO2 and more.

Genes Help Plants Handle Rising CO2 Levels

Discovery can give scientists new tools to engineer crops to deal with droughts and high temps.

Gallery

Summer Temperature Trends Summer weather has been changing in ways climate scientists say are consistent with what they’d expect in a warming world.