国产三级大片在线观看-国产三级电影-国产三级电影经典在线看-国产三级电影久久久-国产三级电影免费-国产三级电影免费观看

Set as Homepage - Add to Favorites

【phim sex online 18】Grim chart shows atmospheric carbon dioxide hit a record high in 2020

Source:Feature Flash Editor:explore Time:2025-07-03 02:49:59

The phim sex online 18pandemic couldn't thwart the relentlessly rising carbon dioxide in Earth's atmosphere.

Scripps Institution of Oceanography, which collects daily measurements of atmospheric CO2 atop Hawaii's Mauna Loa, announced Thursday that CO2 levels reached a record high in May 2020 (atmospheric CO2 hits its annual high point each May). The research institute measured an average of just over 417 parts per million, or ppm, last month, likely the highest amount in millions of years. This new record was expected: CO2 levels have been accelerating in the atmosphere since 1958, when record-keeping began at the Mauna Loa Observatory.

As the Scripps chart below depicts, atmospheric CO2 was around 317 ppm in the late 1950s. This May, it hit 417.2 ppm.

(You’ll notice the saw-like line going upward in the chart. This "saw" appearance shows how each year atmospheric CO2 levels also naturally rise and fall when the great forests of the Northern Hemisphere gulp up CO2 during the spring, and then decomposed leaves release it back into the atmosphere during the fall and winter. May is the "turning point," when atmospheric CO2 reaches its annual apex and then starts to temporarily decline as hundreds of millions of trees suck up CO2.)

Mashable ImageAtmospheric CO2 hit a record high in 2020. Credit: Scripps Institution of Oceanography

Though global carbon emissions plummeted in April 2020 (by 17 percent compared to 2019) due to wide-scale societal shutdowns intended to curb the spread of the new coronavirus, there was still a profound amount of CO2 being emitted into the air — just not as much as there would have been without a historic pandemic.

Atmospheric CO2 levels are like a massive bank account that’s been accruing more and more carbon every year for well over a century (this bank account is now at its highest levels in at least800,000 years, but more likely millions of years). This year’s carbon emissions, however, are just a deposit. So the 2020 deposit may be smaller than in 2019, but it’ll still add to the burgeoning bank account, or "pile" of atmospheric CO2.

"The pile is still there," Ralph Keeling, the director of the Scripps CO2 Program at the Scripps Institution of Oceanography, told Mashable in March. "We're not getting rid of the pile [with temporary shutdowns]."

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

To significantly slow the relentless upward atmospheric CO2 trajectory, unprecedented emissions reductions of 20 to 30 percent would have to be sustained for six to 12 months, Scripps noted.

Overall, it’s fair to say that atmospheric CO2 is now skyrocketing, as fossil fuels are currently the dominant source of energy on Earth. In the 1970s, around the first Earth Day, CO2 levels were going up by about 1 ppm per year. But the rate has increased to, on average, 2.4 ppm over the last decade.

In May 2019, CO2 averaged 414.8 ppm, making this year’s average about 2.4 ppm higher.

"The rate of CO2 increase since the first Earth Day is unprecedented in the geologic record," Dan Breecker, a paleoclimatologist at The University of Texas at Austin, told Mashable last year.

Mashable ImageWe've got skyrocketing carbon emissions. Credit: SCRIPPS INSTITUTION OF OCEANOGRAPHY

The reason why is clear. 

"There is abundant and conclusive evidence" that the acceleration is caused by increased [carbon] emissions, Pieter Tans, a senior scientist with NOAA’s Global Monitoring Laboratory, said in the Scripps press release.

The planet continues to react to rising concentrations of CO2 in the air. CO2 is a potent heat-trapping greenhouse gas, which can live in the atmosphere for 300 to 1,000 years. This means the decisions we make today about how we power our homes, cars, and lives will make a critical difference in how much Earth will warm in the future. Already, 19 of the last 20 years are now the warmest on record.

"Thus, as humans change the atmosphere by emitting carbon dioxide, those changes will endure on the timescale of many human lives," writes NASA

0.1669s , 10088.0703125 kb

Copyright © 2025 Powered by 【phim sex online 18】Grim chart shows atmospheric carbon dioxide hit a record high in 2020,Feature Flash  

Sitemap

Top 主站蜘蛛池模板: 欧美一区二区三区不卡免费 | 天堂国产 | 欧美性猛交xxxx富婆 | 日本大胆无码免费视频 | 亚洲精品中文字幕乱码 | 91大神在线资源观看无广告 | 久久青草国产精品一区 | 国产精品羞羞无码久久久 | 中文字幕 亚洲精品 第1页 | 国产微拍一区二区三区四区 | 精品无码久久午夜福利下载 | 国产亚洲精品在线视频一 | 久久精品无码一区二区毛片 | 欧美在线一区二区 | 97精品国产高清久久久久蜜芽 | 国产成人亚洲精品无码影院bt | 久久免费区一区二区三波多野 | 亚洲欧美日韩国产精品专区 | 在线观看网站 | 久久88色综合色鬼 | 国产精人妻无码一区麻豆 | 国产女王调教夫妻奴 | 日本aⅴ在线观看 | 欧美综合久久 | 日韩精品观看 | 久久久久亚洲av片无码下载蜜桃 | 国产麻豆| 亚洲黄色网| 国偷自产AV一区二区三区健身房 | 国产素人一区二区久久 | 91精品欧美综合在线野草社区 | 久久久久久久久影院 | 国语字幕在线播放字幕mv在线高清最 | 精品动漫区一区二在线观看 | 伊人久久国产免费观看视频 | 亚洲欧美天堂网 | 国产美女一区二区在线观看 | 免费无码又黄又爽又刺激 | 精品久久久亚洲精品中文字幕 | 久久久久噜噜噜亚洲熟女综合 | 福利卡—卡二卡三卡四卡 |