My most important take-away from the Global #Carbon Budget 2020:
While emissions dropped by an unprecedented 7%, atmospheric CO₂ not only kept growing, it kept growing by pretty much the same amount as in 2019 (+2.5 ppm)
Why? ⬇️
While emissions dropped by an unprecedented 7%, atmospheric CO₂ not only kept growing, it kept growing by pretty much the same amount as in 2019 (+2.5 ppm)
Why? ⬇️
(1) of course atmospheric CO₂ kept growing because we were still emitting massive amounts of CO₂, 34.1 GtCO₂ from fossil fuels plus 5.9 GtCO₂ from land-use change - a similar amount as in 2012, which says something about the fast increase of emissions in the last years
and
and
(2) the atmospheric growth rate is the balance between emissions and carbon sinks. Land and ocean absorbed CO₂ from the atmosphere, giving us a 'discount on climate change' - they, presumably the land, might have absorbed somewhat less in 2020 (full budget next year).
So:
So:
Don't forget about the sinks: Over this historical period, the ocean has absorbed a comparable amount to all the CO₂ emissions from oil use. Without the service by land and ocean, we would be at nearly 600 ppm.
Big thanks to all the ocean contributors to the GCB, modelers, data-product providers, observationalists. Each contribution is needed to produce a budget.
@laurent_bopp @clequere @ilitat @LukeGre @SOCAT_CO2 @AreOlsen @Dorothee_Bakker and many more
@laurent_bopp @clequere @ilitat @LukeGre @SOCAT_CO2 @AreOlsen @Dorothee_Bakker and many more
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