您现在的位置是:焦點 >>正文
【】
焦點425人已围观
简介If intelligent life beyond Earth (should it exist) could view our planet right now, they might be as ...
If intelligent life beyond Earth (should it exist) could view our planet right now, they might be astonished by the great plume of smoke curling over the ocean.
It's a wild sight, captured by the National Oceanic and Atmospheric Administration's (NOAA) GOES-West satellite. Potent winds have blown smoke from the historic Western wildfires over 1,000 miles from the coast, into the northern Pacific Ocean. The plume has traveled east too, reaching Mexico. (Hazy skies, from earlier fires, have also been spotted over Europe.)
Record-breaking heat waves, profound record to near-record dryness, and strong winds have allowed massive wildfires to rapidly spread in California, Oregon, and Washington. What's more, millions of dead trees (killed by climate-enhanced drought and bark beetles) along with mismanaged, overcrowded forests have further amplified these blazes.
The resulting smoke has punished Western regions, and in some places turned the daylight into an eerie, dark orange glow. Winds are now blowing bounties of profoundly thick smoke over the Pacific Ocean.

"Running out of adjectives to describe #smoke emitted from Western US wildfires," tweeted NOAA's National Environmental Satellite, Data, and Information Service Center for Satellite Applications and Research aerosol team, which tracks smoke over the region.
Out over the open ocean, the smoke is now wrapping around a cyclone (a general term for a zone in the atmosphere where winds rotate around an area of low pressure).
The smoke plume over the Pacific Ocean on Sept. 11, 2020.Credit: noaa / ciraTweet may have been deleted
Tweet may have been deleted
Smoke from massive fires can travel around the globe in about a week. But the largest component of wildfire smoke is invisible. Carbon dioxide (CO2) makes up some 90 percent of wildfire smoke. It lives there for hundreds of years. Critically, CO2 is a potent heat-trapping gas, so while in the atmosphere the newly released gases are contributing to the relentlessly warming climate.
A warmer climate means drier trees, shrubs, and grasses, meaning the vegetation burns much more easily.
"When we talk about how climate enables fire activity, we’re often talking about how dry fuels are," John Abatzoglou, a fire scientist at the University of California, Merced, told Mashable as some of the largest fires in California history burned in late August. "This year is embedded within a long-term uphill climb toward warmer, drier, and smokier climates."
SEE ALSO:The devious fossil fuel propaganda we all useWildfires are not inherently bad. There is good fire. Fires naturally thin overcrowded forests (which decrease the likelihood of future infernos) and maintain healthy ecosystems. For this reason, California and the U.S. Forest Service just committed to thin millions of acres of mismanaged forest.
But still, modern fires are burning in a hotter climate.
Carbon emissions from California blazes are already the highest they've been in the 18-year wildfire satellite record. Five of the largest 20 fires in Golden State history have burned in 2020, so far.
Related Video: Where does smoke go to die in the atmosphere?
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://www.new.maomao321.com/news/45a2299932.html
相关文章
Fyvush Finkel, Emmy winner for 'Picket Fences,' dies at 93
焦點NEW YORK (AP) — Actor Fyvush Finkel, the plastic-faced Emmy Award-winning character actor whos ...
【焦點】
阅读更多Gorgeous drone footage captures couple sex'ing in a church steeple
焦點Nowhere is safe now that drones are flying about -- not even church.What seemed like innocent aerial ...
【焦點】
阅读更多Super Typhoon Nepartak is an example of terrifying meteorological perfection
焦點The western Pacific Ocean had been building up heat for a record 200 days without the churning from ...
【焦點】
阅读更多
热门文章
- This coloring book is here for all your relationship goals
- China keeps trying to prove its glass bridge is safe, so it drove a 2
- West Bengal asks colleges to have separate toilets for transgenders
- Singers slammed for injecting 'All Lives Matter' into 'O Canada' at MLB All
- You can now play 'Solitaire' and 'Tic
- How to escape your routine and get ahead at work
最新文章
Mom discovers security cameras hacked, kids' bedroom livestreamed
Queen Cersei sides with Ewan McGregor, slams Boris Johnson
Private spaceflight trade group rebrands itself to look more like NASA
Quiet, creeping horror makes 'Inside' an essential game for 2016
The five guys who climbed Australia's highest mountain, in swimwear
8 best albums of 2016 (so far)
