Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Stay on top of the latest market trends

Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

The Windy Fire blazes through the Long Meadow Grove of giant sequoia trees near the Trail of 100 Giants in Sequoia National Forest, near California Hot Springs, on Tuesday. Photo: David McNew/Getty Images

Two wildfires were threatening California's sequoia trees overnight — hours after authorities issued fresh evacuation orders and warnings, along with air quality alerts.

The big picture: Air quality alerts were issued Wednesday for the Bay Area and the San Joaquin Valley as smoke from the Windy and KNP Complex fires resulted in hazy, "ash-filled" skies from Fresno to Tulare, the Los Angeles Times notes.

  • The Tulare County Sheriff's Office issued an evacuation order late Wednesday for communities in the Camp Nelson area of the Sierra Nevada, just northwest of the Sequoia National Park, as the Windy Fire neared.
  • The sheriff's office issued evacuation warnings hours earlier for residents in and around Eshom and Hartland Camp, some 80 miles north of Camp Nelson, due to the approaching KNP Complex Fire.

For the record: Both wildfires have burned across nearly 60,000 acres and are largely uncontained, as they threaten communities and sequoias, including in the Sequoia National Park — which contains the world's largest tree by volume.

  • It's one of more than 2,000 giant sequoias in the park.

Of note: Firefighters' prevention efforts, including prescribed burns and wrapping the giant sequoia tree trunks in aluminum foil, have helped avoid major damage to trees in the Sequoia National Park's Giant Forest.

Yes, but: KNP incident spokesperson Mark Garrett said the blaze was threatening the Lost Grove and Muir Grove, where hundreds of giant sequoias are located, and they "don't have the prescribed fire history like Giant Forest," per the L.A. Times.

  • Fire information officer Thanh Nguyen told the news outlet that officials had confirmed that a "portion of one giant sequoia" along a trail in the Giant Sequoia National Monument area of Sequoia National Forest and the Tule River Indian Reservation, "was confirmed to have burned" in the Windy Fire.

The big picture: Several world leaders at the United Nations General Assembly have appealed for action on cutting emissions and combating climate change, which scientists say make wildfires larger and more intense.

  • The World Health Organization updated air quality guidelines on Wednesday after finding that negative health effects from air pollutants can begin at lower levels than it previously thought.
A tweet previously embedded here has been deleted or was tweeted from an account that has been suspended or deleted.

Go deeper:

Editor's note: This article has been updated with comment from Nguyen.

Go deeper

Newsom signs $15 billion package to fight climate change

Gov. Gavin Newsom Photo: Jane Tyska/Digital First Media/East Bay Times via Getty Images

Gov. Gavin Newsom signed a $15 billion climate package on Thursday as California wildfires threaten more sequoias at Sequoia National Park.

Why it matters: The package is the largest such investment in California history as drought conditions have worsened across the state and led to numerous wildfires. More than 1.9 million acres have burned across the state this year, according to the California Department of Forestry and Fire Protection, including over 220,000 in the Caldor fire last month.

Mike Allen, author of AM
53 mins ago - Politics & Policy

Fauci fires back at Rand Paul for slam on tonight's "Axios on HBO"

Responding to charges by Sen. Rand Paul on Sunday's "Axios on HBO," NIAID director Anthony Fauci told "ABC This Week" that it's "molecularly impossible" for U.S.-funded bat virus research in China to have produced COVID-19.

Why it matters: The issue 0f Wuhan research was reignited on the right last week with a National Institutes of Health letter to Congress disclosing more about the research.

Manchin, Schumer huddle with Biden in Delaware to discuss spending bill

Senate Majority Leader Chuck Schumer (L) and Sen. Joe Manchin (R) at the U.S. Capitol on Nov. 13, 2014. Photo: Win McNamee/Getty Images

Sen. Joe Manchin (D-W.Va.) will meet with President Biden and Senate Majority Leader Charles Schumer (D-N.Y.) on Sunday morning in Delaware as Democrats look to reach an agreement on the massive spending measure.

Driving the news: Democrats are still negotiating what to keep in the bill and how to pay for it, with Biden saying on Thursday that the party does not have the votes to raise the corporate tax rate.