Smokestacks at a coal power plant. Photo: Charlie Riedel / AP

The average concentration of atmospheric CO2 around the world reached 403.3 parts per million in 2016, up from 400 ppm in 2015, per a report from the UN's World Meteorological Organization. The last time levels of CO2 were this high on Earth was 3 to 5 million years ago — a time when the global "temperature was 2–3°C warmer and sea level was 10–20 meters higher than now."

The big picture, via the WMO: "This record annual increase of 3.3 ppm was partly due to the strong 2015/2016 El Niño, which triggered droughts in tropical regions and reduced the capacity of 'sinks' like forests, vegetation and the oceans to absorb CO2."

  • "The rate of increase of atmospheric CO2 over the past 70 years is nearly 100 times larger than that at the end of the last ice age. As far as direct and proxy observations can tell, such abrupt changes in the atmospheric levels of CO2 have never before been seen," the group said.
  • However, while CO2 emissions from human activities were again at record levels in 2016, the annual increases slowed and even plateaued, the report notes.

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Trump agrees to TikTok deal "in concept"

Illustration: Sarah Grillo/Axios

President Trump on Saturday said he approved "in concept" a deal whereby TikTok will be allowed to continue operating in the U.S., with Oracle as its "trusted technology partner."

Why it matters: TikTok has nearly 100 million U.S. users, and is still growing fast. Trump has threatened to ban it, due to data privacy concerns related to TikTok's ownership by Chinese tech company

Updated 53 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 6:15 p.m. ET: 30,611,684 — Total deaths: 953,820— Total recoveries: 20,836,867Map.
  2. U.S.: Total confirmed cases as of 6:15 p.m. ET: 6,756,781 — Total deaths: 199,090 — Total recoveries: 2,556,465 — Total tests: 93,150,052Map.
  3. Politics: In reversal, CDC again recommends coronavirus testing for asymptomatic people.
  4. Health: The dwindling chances of eliminating COVID-19.
  5. World: Guatemalan president tests positive for COVID-19 — The countries painting their pandemic recoveries green.

Trump says he expects to announce a Supreme Court nominee "next week"

President Trump speaking prior to his departure from the White House on Sept. 19. Photo: Sarah Silbiger/Getty Images

President Trump said Saturday he expects to announce a nominee for Justice Ruth Bader Ginsburg's vacant Supreme Court seat “next week” and that the person will “most likely" be a woman.

What he's saying: "If somebody were to ask me now, I would say that a woman would be in first place, yes. The choice of a woman, I would say, would certainly be appropriate," the president told pool reporters.