climate change

During his campaign, Donald Trump called climate change a hoax. And he vowed to abandon the Paris climate agreement signed last year by President Obama and almost 200 countries.

It probably wouldn't be hard for Trump to dump the climate deal.

Leaders from 195 countries are meeting in Morocco to discuss how to reduce global greenhouse gas emissions.

The United Nations climate change conference began Monday and runs through Nov. 18. It is the first major climate meeting since the Paris climate change agreement was passed at last year's conference.

Ralph Cicerone, a celebrated scientist and a driving force in the effort to put climate change on the global agenda, died Saturday at the age of 73.

Cicerone had retired in June as president of the National Academy of Sciences. In his long association with that congressionally chartered organization, he had gradually helped scientists and politicians alike focus on how much human beings are changing the Earth's atmosphere.

If you want to feel virtuous the next time you chug a brewski, consider the Long Root Ale. This new beer, mildly fragrant and with a rye-like spiciness, is the first to use Kernza, a kind of wheat that could make agriculture more sustainable, especially in the face of climate change.

Coffee lovers, alert! A new report says that the world's coffee supply may be in danger owing to climate change. In the world's biggest coffee-producing nation, Brazil, the effects of warming temperatures are already being felt in some communities.

It has been a common belief that low-emissions vehicles, like hybrids and electric cars, are more expensive than other choices. But a new study finds that when operating and maintenance costs are included in a vehicle's price, cleaner cars may actually be a better bet.

The cars and trucks we drive are responsible for about a fifth of greenhouse gas emissions in this country. That's why Jessika Trancik, an energy scientist at the Massachusetts Institute of Technology, decided it was time to take a closer look at vehicle emissions.

A panel of judges Tuesday is hearing a case that could change the future of the power industry.

The D.C. Circuit is hearing an appeal of the Clean Power Plan, an Obama administration rule that would restrict carbon emissions from coal- and gas-fired power plants.

Bertha Vazquez has taught earth science for more than 25 years.

"For many years I covered the basic standard, probably like most people in the country do," she says.

Then one day, she says, she decided to throw that all out the window after seeing former Vice President Al Gore speak at the University of Miami at a screening of An Inconvenient Truth, his documentary about climate change.

"And it really ... hit me. This is 2007 and, I've got to tell you, I lost sleep," Vazquez says.

The Mendenhall Glacier is visible from the visitor center parking lot. But it's still pretty far and if you traveled all the way to Juneau, Alaska, you probably want to get up close to the blue tinted ice.

Touching the face of the glacier can be tricky. You're separated by cold, silty water, and a hike over the ridge could take hours.

Visitor center staff know that. And inside, they use it to prove a point.

There was a time when Sandra Gologergen's freezer never ran out. Packed with traditional Inuit foods like whale, walrus, seal and fish, her freezer has been an essential lifeline, ensuring her husband, three kids and grandson make it through the long harsh winters of Savoonga, Alaska.

"Then that changed," she says.

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