Wildfire

This satellite image shows active fires (in red) and gray smoke particles wafting over parts of eastern Canada and the United States. 

Smoke From Wildfires in Canada Traveled as Far as Norway

Though air quality has improved along the East Coast, smoke particles are floating through the atmosphere to other parts of the world

A hazy smoke over Washington, D.C., on Thursday morning, where air quality reached very unhealthy levels, with increased risk of health effects for all groups.

Canadian Wildfires Send Harmful Smoke Across Eastern United States

At least 20 states were air quality alerts this week, and in some places, air quality reached unhealthy levels for all groups

Bush fires rage through Canberra, Australia, on January 18, 2003.

The World’s First Wildfire Tornado Blazed a Path of Destruction Through Australia

A warming atmosphere due to climate change is increasing the chances similar natural disasters will occur again

A burnt landscape caused by wildfires near Entrance, Wild Hay area, Alberta, Canada on May 10, 2023.

Wildfires in Canada Burn Close to One Million Acres

The current fire season has been unusually devastating for this early in the year—and more hot, dry weather is on the way

Zooplankton help clean Lake Tahoe by eating tiny particles that can make the water cloudy.

Why Lake Tahoe Is the Clearest It's Been in 40 Years

Thanks to a "natural clean-up crew" of zooplankton, the large freshwater alpine lake is looking especially pristine

Saylor Flett, left, fans flames ignited by Jeff Greef. Air quality, weather and even bird migration affect when it’s safe to conduct a burn.

Fighting Fire With Fire in California

How communities in the West are boldly setting property ablaze to reduce the impact of extreme wildfires

Australia's 2019 to 2020 wildfires destroyed more than 3,000 homes. New research shows how they also temporarily depleted the ozone layer.

Here's How Wildfires Can Destroy the Ozone Layer

Massive blazes like the ones in Australia three years ago deplete the crucial blanket surrounding our planet through chemical reactions in the atmosphere

Ponderosa pines at Yosemite National Park

California's 'Zombie Forests' Are Cheating Death—but Maybe Not for Long

A fifth of conifer forests in the state’s Sierra Nevada mountains are stranded in unsuitably warm conditions

Dead aspen trees, shrunken by drought, wither near Grant Lake in California last October.

California Lost 36 Million Trees to Drought Last Year

The die-off is expected to continue despite this winter’s rain storms

The Columbia Basin pygmy rabbit relies on sagebrush for food and shelter, but the shrub has nearly disappeared. It's also slow to regrow: it takes about two decades, or ten pygmy rabbit lifetimes.

Can Scientists Save the World’s Tiniest Rabbit?

In Washington State, the race is on to save a diminutive bunny as wildfires threaten its already shrinking habitat

A mountain lion, P-22, known to live in the Los Angeles area

L.A.'s Cougars Were Driven to Extremes by Wildfire

With less suitable habitat, the big cats traveled further and crossed dangerous roads more often

King Fire Self Portrait by Jeff Frost (2018)

See How California Artists Process Wildfires Through Their Work

A new exhibition showcases art that seeks to make sense of destruction

Fires burn in the Amazon rainforest in northern Brazil on August 31, 2022. 

Wildfires Reached a Five-Year High in the Brazilian Amazon

Rapid deforestation has made the rainforest more vulnerable to flames, experts say

Aerial view of the usually submerged ruins of the village of Aceredo in northwestern Spain on February 15, 2022

This Summer’s Drought Is Europe's Worst in 500 Years. What Happened Last Time?

The 1540 megadrought brought mass suffering to the continent, but European society quickly bounced back

An inmate firefighter monitors flames as a house burns in the Napa wine region of California on October 9, 2017.

The History of California's Inmate Firefighter Program

The initiative, which finds prisoners working as first responders and rescuers, dates back to the 1940s

A flash flood in Moab, Utah outside Arches National Park. 

Southwestern Flash Floods Submerge Cars, Strand National Park Visitors

Millions were under flood watch over the weekend as rains overwhelmed a wildfire-scorched landscape

Yosemite’s Mariposa Grove of giant sequoias has reopened after the Washburn Fire.

Yosemite's Grove of Giant Sequoias Reopens After Month-Long Fire Closure

Park officials say that decades of prescribed burns helped keep the historic trees safe

Forests are grappling with wildfires, insect infestations, extreme weather events, invasive species and other challenges.

U.S. Will Plant One Billion Trees to Combat Climate Change

The Forest Service plans to tackle a reforestation backlog of 4.1 million acres

A firefighting aircraft drops retardant to stop the spread of the Oak Fire in California

A Fast-Moving Wildfire Is Spreading Near Yosemite National Park

The Oak Fire has forced thousands of Mariposa County residents to evacuate

A forest fire in Louchats, southwestern France, on July 17, 2022

Heat Wave Scorches Europe

Scientists say climate change is making heat waves hotter, longer and more frequent

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