Antarctica’s CO2 level tops 400 ppm for first time in perhaps 4 million years

 insideclimatenews.org/news/16062016/antarctica-co2-level-tops-400-ppm-first-time-perhaps-4-million-years-british-antarctic-survey-global-warming?utm_source=PANTHEON_STRIPPED&utm_campaign=PANTHEON_STRIPPED&utm_medium=PANTHEON_STRIPPED&utm_term=PANTHEON_STRIPPED&mc_cid=64ad07d8cf&mc_eid=8f7f5f55bf