- Greenhouse gas levels at new record high https://www.bbc.com/news/science-environment-46289829 4 comments worldnews
- Greenhouse gas levels at new record high https://www.bbc.com/news/science-environment-46289829 8 comments politics
- Climate change: Warming gas concentrations at new record high in our atmosphere in 2017. http://www.bbc.co.uk/news/science-environment-46289829 28 comments science
- Greenhouse gas levels at new record high https://www.bbc.com/news/science-environment-46289829 4 comments worldnews
- Carbon dioxide levels in the Earth's atmosphere reached 405 parts per million (ppm) in 2017, a level not seen in 3-5 million years https://www.bbc.co.uk/news/science-environment-46289829 394 comments worldnews
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