The concentration of CO2 in the atmosphere has risen to over 415 parts per million -- far higher than at any point in the last 800,000 years, since before the evolution of humans
That was the reaction of meteorologist Eric Holthaus to news that atmospheric carbon dioxide levels have reached heights not seen in the entirety of human existence -- not history, existence.This is the first time in human history our planet's atmosphere has had more than 415ppm CO2.
Not just in recorded history, not just since the invention of agriculture 10,000 years ago. Since before modern humans existed millions of years ago.— Eric Holthaus May 12, 2019 According to data from the Mauna Loa Observatory in Hawaii, the concentration of CO2 in the atmosphere is over 415 parts per million , far higher than at any point in the last 800,000 years, since before the evolution of homo sapiens.
— Bill McKibben May 12, 2019 "Not just in recorded history, not just since the invention of agriculture 10,000 years ago. Since before modern humans existed millions of years ago," added Holthaus. During the Pliocene Epoch, some 3 million years ago, when global temperatures were estimated 2-3 degrees Celsius warmer than today, CO2 levels are believed to have topped out somewhere between 310 to 400 ppm. Atmospheric carbon dioxide levels are at their highest point in over 800,000 years.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Yosemite’s road to Glacier Point (and this view) opens todayGlacier Point road, the route to one of Yosemite National Park's most amazing views, opened for the season today.
Consulte Mais informação »
Here's why the Dow dropped 600 points todayThe Dow is having its worst day since January 3. The index is down nearly 600 points, falling below 26,000 points.
Consulte Mais informação »
Dow futures point to more than 150-point decline at Monday's openU.S. stock market futures pointed to declines across the major indexes at Monday's open.
Consulte Mais informação »
Bat-winged dinosaur was intriguing detour in evolution of flightA fossil unearthed in northeastern China of a feathered dinosaur a bit bigger th...
Consulte Mais informação »
Evolution unmasked: Mother Nature is a brutal, uncaring opponent that we need to outmanoeuvre | OpinionOur ancestors were subjected to full-strength, undiluted, CFC-free, pure-organic, additive-free natural selection. The biggest recipients were young children, for which evolution had the greatest appetite of all.
Consulte Mais informação »
Disease that can be transferred from dog to human confirmed in Iowa, officials sayThe zoonotic disease, known as 'canine Brucellosis,' is spread through reproductive fluids. Instances were found at a small-dog breeding facility.
Consulte Mais informação »
![A Quarter Of All Species Are Threatened With Extinction Due To Human Activity [Infographic]](https://i.headtopics.com/images/2019/5/13/forbes/human-activity-is-killing-species-in-greater-numbers-than-ever-before-1127732692928356353.webp?w=640)
A Quarter Of All Species Are Threatened With Extinction Due To Human Activity [Infographic]A devastating new report has warned that 1 million species are now at risk of extinction as a direct result of human activity.
Consulte Mais informação »
Human lifespan could soon pass 100 years thanks to medical tech, says BofAOne of the biggest investment opportunities over the next decade will be in companies working to delay human death, Bank of America says.
Consulte Mais informação »