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Environment + Energy – Articles, Analysis, Opinion

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Snow melts near the Continental Divide in the Bridger Wilderness Area in Wyoming, part of the Greater Yellowstone Area. Bryan Shuman/University of Wyoming

Yellowstone is losing its snow as the climate warms, and that means widespread problems for water and wildlife

The area’s iconic national parks are home to grizzlies, elk and mountain snowfall that feeds some of the country’s most important rivers. A new report show the changes underway as temperatures rise.
It’s back: Rush-hour traffic in Los Angeles on June 15, 2021. Carolyn Cole / Los Angeles Times via Getty Images

As urban life resumes, can US cities avert gridlock?

The pandemic offered a tantalizing look at city life with fewer cars in the picture. But with traffic rebounding, there’s limited time to lock in policies that make streets more people-friendly.
A ‘100-year flood’ doesn’t mean you’ll be flood-free for the next 99 years. Win McNamee/Getty Images

What’s a 100-year flood? A hydrologist explains

Flood plain statistics can be confusing. There are better ways to think about the risk of severe weather than 100-year storm or flood.
Colorado’s East Troublesome Fire jumped the Continental Divide on Oct. 22, 2020, and eventually became Colorado’s second-largest fire on record. Lauren Dauphin/NASA Earth Observatory

Rocky Mountain forests burning more now than any time in the past 2,000 years

Scientists studied charcoal layers in the sediment of lake beds across the Rockies to track fires over time. They found increasing fire activity as the climate warmed.
With the evidence uncovered by paleontologists, an artist sketched El Bosque Petrificado Piedra Chamana as it might have looked long before humans. Mariah Slovacek/NPS-GIP

A volcanic eruption 39 million years ago buried a forest in Peru – now the petrified trees are revealing South America’s primeval history

Using remnants of fossilized trees, scientists and an artist figured out what the forest looked like long before humans existed.
Migrants hoping to reach the distant U.S. border walk along a highway in Guatemala in January 2021. AP Photo/Sandra Sebastian

As more climate migrants cross borders seeking refuge, laws will need to adapt

Climate migrants don’t fit neatly into the legal definitions of refugee or migrant, and that can leave them in limbo. The Biden administration is debating how to identify and help them.
Mark Poindexter puts a tarp on the damaged roof of his home in Gulf Breeze, Louisiana, on Aug. 29, 2020, in the aftermath of Hurricane Laura. AP Photo/Gerald Herbert

Hurricanes, wildfires, tornadoes, floods – whatever your local risk, here’s how to be more weather-ready

Federal weather scientists are pushing to make the US more ‘weather-ready,’ which could mean prepping for fires, flooding or storms depending on where you live. The common factor: thinking ahead.
Traffic at the south entrance to Yellowstone National Park on Aug. 20, 2015. Neal Herbert, NPS/Flickr

Overcrowded US national parks need a reservation system

It’s hard to preserve national parks “unimpaired,” as US law directs, when they’re overrun with tourists who stray off paths, strew trash and harass wildlife. A parks scholar calls for crowd control.