Nobody can say for certain. But that doesn't mean that the Conservative politicians have to deny it.

It's a curious reversal of the farm-to-table movement.

The top 10 percent consumes 20 times more energy than the bottom 10 percent.

Don't read this if you are in a bad mood. Or a good mood, really.

The findings could help us deal with environmental changes happening now and in the future.

Aircraft will have to fly new routes to avoid major bumps.

People committed to sustainability understand that there are many complexities to our global challenges. But one often overlooked fact is how valuable forests are in mitigating climate change.

The Sustainable Forestry Initiative (SFI) is working with partners like American Forests on important global issues, including climate change.

The 2019 horseradish crop was battered by unusually harsh weather, and the effects are showing up in fast food joints.

Admiral Samuel Locklear, commander of the US Pacific Command says that the biggest long-term security threat in the Pacific region is climate change.

With coal use in China dropping, and clean tech becoming competitive, it's time for all of us to ramp up our efforts.

It talks a lot about cycling, but notes that we don't do nearly enough about walking.

A new 'eco tax' will raise money for less polluting modes of transportation.

Record breaking extreme weather isn't just plaguing the Midwest: Colombia has had 5-6 times more rainfall than usual for the past ten months--which has killed 425 people so far, covered 1 million hectares with water, and left 3 million people as what

It has become a familiar pattern. A natural disaster occurs and we can't help but wonder how it may have been influenced by climate change. Here's a look at how the Colorado rains and flood were connected to global warming.

The Mountain Pine Beetle is getting more press because of the havoc it is causing in the Southern Rocky Mountains, but the Spruce Beetle has the potential to be equally or even more devastating in Colorado.

President Obama’s State of the Union speech takes aim at climate change deniers.

Yesterday, U.S. President Barack Obama and Indian Prime Minister Narendra Modi announced a deal to work together against climate change.

Just when you think it can't get any crazier in US politics, it does.

To highlight the accelerating disappearance of Arctic sea ice, this man plans to survive alone on a melting iceberg for up to one year.

Finally, talking about lifestyle changes and using less instead of buying more green stuff.

Most wild coffee species are at risk for extinction.

The White House released a preview video announcing President Obama will make a major national address on climate change, Tuesday, June 25.

Today, President Obama announced his new climate change plan, which includes a proposal to establish new rules for cutting carbon pollution from existing power plants. Read the plan and watch the speech here.

What should we make of President Obama's speech yesterday announcing his plan for addressing climate change? Here are four key moments worth remembering.

On Tuesday, President Obama announced his new climate change plan. Below is an infographic produced by the White House illustrating some facts about climate change and how these new proposal

If you're wondering why Congress has yet to tackle this global crisis despite overwhelming scientific consensus and ballooning costs of inaction, Think Progress maps which members of Congress deny the realities of global warming.

Today, President Obama signed an Executive Order (E.O.) establishing a Task Force on Climate Preparedness and Resilience.

The hot real estate plays of the next decade will be in the rust belt along the Great Lakes.

Children born today will grow up in a disease-ridden, malnourished world, unless governments stick to the Paris Agreement.

From where they're grown to how they taste to when we eat them, very little will stay the same in coming decades.

Advice to eat less meat and dairy is seen as "biting the hand that feeds."

Restoration ecologist Karen Holl explains why it's not that simple.