- NOAA: Atmospheric CO2 levels set a new record last month. The highest since humans have kept records and higher than millions of years in the fossil/ice core record. https://www.usatoday.com/story/news/nation/2019/06/04/carbon-dioxide-levels-hawaiis-mauna-loa-soar-record-peak/1337163001/ 53 comments worldnews
- Earth's carbon dioxide levels are highest they've been in millions of years https://www.usatoday.com/story/news/nation/2019/06/04/carbon-dioxide-levels-hawaiis-mauna-loa-soar-record-peak/1337163001/ 28 comments worldnews
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