- Carbon Dioxide Reaches Highest Recorded Levels In Human History https://www.forbes.com/sites/trevornace/2019/11/30/carbon-dioxide-reaches-highest-recorded-levels-in-human-history/ 36 comments worldnews
- Carbon dioxide levels reach highest recorded levels in human history https://www.cnet.com/news/carbon-dioxide-levels-reach-highest-recorded-levels-in-human-history/ 53 comments worldnews
- In May, the concentration of carbon dioxide in the atmosphere reached the highest level ever recorded in human history https://www.nationalgeographic.com/science/2020/05/plunge-in-carbon-emissions-lockdowns-will-not-slow-climate-change/ 243 comments worldnews