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So during my lifetime, levels of this key gas have just kept on rising. the most striking thing that i see on c02 since 1958 is that the concentration in the atmosphere has gone up every single year. so where would this leave us? the early computer models couldn�*t be sure. there were lots of uncertainties. but the scenarios were already looking scary. there have been record temperatures in europe. 48 degrees in sicily. and to avoid the worst damage, the european union has now pledged to go carbon neutral by 2050. it has been under pressure to act because it is the world�*s third—biggest...

Hawaii, and up an old volcano. at the summit lies a forest of instruments. one of them has measured carbon dioxide since 1958, ijy measured carbon dioxide since 1958, by coincidence, that is the year i was born. so during my lifetime, levels of this key gas have just kept on rising. the levels of this key gas have 'ust kept on risingi levels of this key gas have 'ust kept on rising. the most striking thin that kept on rising. the most striking thing that i _ kept on rising. the most striking thing that i see _ kept on rising. the most striking thing that i see other— kept on rising. the most...

Piece noting a private secret plan here to effectively dilute obama restrictions on a key gas, methane, which can drive global warming. and this comes while the u.n. secretary-general is calling on world leaders to do the opposite, to take the threat of climate change more seriously. >> climate change is the defining issue of our time. and we are at a defining moment. the leaders of the world need to step up. >> julian, i wonder if you could put that in context for us, what the "times" has unearthed, what's going on in the administration sort of behind the scenes as we brace for this hurricane...