Earth's Carbon Dioxide Levels Reach Highest Point In 800,000 Years (washingtonpost.com)

An anonymous reader quotes a report from The Washington Post: For the first time since humans have been monitoring, atmospheric concentrations of carbon dioxide have exceeded 410 parts per million averaged across an entire month (Warning: source may be paywalled; alternative source), a threshold that pushes the planet ever closer to warming beyond levels that scientists and the international community have deemed "safe." The reading from the Mauna Loa Observatory in Hawaii finds that concentrations of the climate-warming gas averaged above 410 parts per million throughout April. The first time readings crossed 410 at all occurred on April 18, 2017, or just about a year ago. Carbon dioxide concentrations -- whose "greenhouse gas effect" traps heat and drives climate change -- were around 280 parts per million circa 1880, at the dawn of the industrial revolution. They're now 46 percent higher. According to Scripps Institute of Oceanography, this amount is the highest in at least the past 800,000 years. "We keep burning fossil fuels. Carbon dioxide keeps building up in the air," said Scripps scientist Ralph Keeling, who maintains the longest continuous record of atmospheric carbon dioxide on Earth. "It's essentially as simple as that."

Comments

Re: Duh

[Tablizer]

Usually the changes have been gradual such that life had time to adjust. Humans especially may be sucker-punched by relatively rapid change.

Re:There are two sides

[Travelsonic]

False dichotomy - there are people who outright think it doesn't exist, and people who think it is the impending apocalypse, then there are people who think it is serious, but are optimistic and think we are capable, and able, to find solutions, and have time to do it, as well as those who might believe climate change is real, but wonders about the nitty gritty, how those details are garnered, or conclusions are drawn - I.E ask questions in a reasonable manner, and many people who fall into choices other than those I mentioned.

Re:And before that?

[serviscope_minor]

Yes?

What's with all the anti-science ACs JAQing off in this thread.

Yes CO2 has been higher in the past, no all lfe didn't die then and no humans did't have a population of 7 billion wiht hundreds of trillions of dollars of infrastructure with a few meters of sea level.

Life will go on, but it won't be comfortable.