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Mountain Forest Changes Threaten Calif. Water Supplies

Landscape changes in the warming Sierra Nevada may have major impacts on California’s economy.

Warming in Europe Raises Risks of Tropical Diseases

As temperatures rise in Europe, researchers warn of the increased risk of mosquito-borne diseases.

Pests Pose Increasing Risk to Food Security

In a world with ever more competition for food, pests may pose the biggest threat.

Cut Carbon, Breathe Easier, Live Longer

A new study says a federal cap-and-trade policy could pay for itself 10 times over with health benefits.

Battle Wages for California’s Groundwater Rights

California’s drought stresses the need to improve how the state & the rest of us divvy up a resource in demand.

6 Degrees: South Pole, Temp Stats, Bird Deaths & More

This week's roundup has new info on the warming hiatus, rare bird deaths, summer temp stats and more.

Climate Change Ups Odds of a Southwest Megadrought

A new study shows that climate change is increasing the odds of long-term drought in the Southwest.

Picture This: Awesome Auroras and Triple Rainbows

Colors abound in this week's weather photo roundup, with a triple rainbow and glowing rains over Yosemite.

See How This Summer’s Temperatures Stack Up

Summer's nearly over, so here's a look at how temps this year stack up against the historical record.

‘Urgency of Climate Change’ to Debut as Legal Defense

The necessity defense will be used in the case of two men who blockaded a coal shipment.

Coal Plants Lock in 300 Billion Tons of CO2 Emissions

Coal plants are committing the Earth to billions of tons of CO2 emissions in the coming decades.

What Global Warming Might Mean for Extreme Snowfalls

While warming is expected to reduce average snowfalls, it may have less of an impact on extreme snowfalls.

Crowdsourced Photos Provide Drought Snapshots

Anyone can contribute to a growing database of photos that show the state of drought across the U.S.

Visualize It: Old Weather Data Feeds New Climate Models

Old weather records are providing valuable data for scientists and fodder for stunning visualizations.

Antarctic Riddle: How Much Will the South Pole Melt?

Improved climate models suggests melting in Antarctica will be worse this century than we had realized.

The Jargonaut: What’s a Rossby Wave?

An explanation of what a Rossby wave is and how it could be messing with U.S. weather patterns.

Depths of Atlantic May Hold Key to Global Warming Hiatus

Excess heat is being stored deep in the Atlantic and Southern oceans – not Pacific as previously thought.

What Iceland’s Volcanoes Can Teach Us about Climate

Another Icelandic volcano is primed to erupt and events like that have a lot teach us about climate change.

6 Degrees: Urban Heat, Miami’s Woes & Record Temps

The week that was features the latest on urban heats islands, Miami's sea level woes and more.

A Tale of Two Cities: Miami, New York and Life on the Edge

Like New York, Miami faces the challenge of rising seas, but with a number of critical differences.

Gallery

2012: Warmest March Ever Recorded You knew it was warm last month, but today it's official: it wasn't just warm; it was the warmest March ever recorded.