This week I’ve been attending and presenting at the 8th international carbon dioxide meeting in Germany . Among the numerous of presentations, the one that is most disturbing is the realisation that the carbon dioxide already in the atmosphere has a very long lifetime (1000-10000years). It turns out that even if we go to a carbon neutral economy in the future with zero carbon emissions, 20-35% of CO2 stays in the atmosphere over the coming 1000 years (Go here to download the presentation).
Key message: Actions in the past and today lock in global warming for the world over very long time-scales.
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