New by Rockström et al "We need biosphere stewardship that protects carbon sinks and builds resilience"
pnas.org/content/118/38…, reads like a newspaper article👌
It doubts the continued carbon sinks' service as assumed in IPCC budgets. And demands to protect & increase them.
pnas.org/content/118/38…, reads like a newspaper article👌
It doubts the continued carbon sinks' service as assumed in IPCC budgets. And demands to protect & increase them.
https://twitter.com/anlomedad/status/1438513516747497486
IMO, given that oil palm and plantations for biofuel as well as animal feed is a huge part of forest loss, and that palm oil is in virtually everything we in G-North buy, we can't wait until industry picks up on this and incrementally reduces output.
Demand-side has to be curbed
Demand-side has to be curbed
Unheeded by governments, emissions must half every decade in current 1.5 budgets – not from 1990 or 2005 levels!! The authors state that, too.
If we loose carbon sinks, the budgets decrease tremendously.
If we loose carbon sinks, the budgets decrease tremendously.
Had we lost carbon sinks in 1900, ˚C today would be 0.4 higher and reach 2.8˚on a 1.5 budget.
OTOH, a 1.5budget with all potential Natural Climate Solutions, NCS, applied from TODAY ONWARDS can reduce a 1.5 pathway to a 1.2 one.
The authors stress that there's NO time to waste.
OTOH, a 1.5budget with all potential Natural Climate Solutions, NCS, applied from TODAY ONWARDS can reduce a 1.5 pathway to a 1.2 one.
The authors stress that there's NO time to waste.
"To be clear: Maintaining and enhancing carbon sinks in the biosphere is a prerequisite to hold global warming well below 2 °C—and vice-versa. The more global warming exceeds 1.5 °C, the more likely we are to experience major impacts on ecosystems, triggering feedbacks" and harm.
"Are we at risk of losing the biosphere carbon sinks and thereby the safe operating space for humanity provided by nature?
The latest evidence is not encouraging. The land carbon sink has shown increasing interannual variability since the 1950s, indicating rising instability"‼️
The latest evidence is not encouraging. The land carbon sink has shown increasing interannual variability since the 1950s, indicating rising instability"‼️
They outline the strategy of becoming stewards of the biosphere in a long to-do list.
One item states: we must avoid sink losses from NOW that can't be recovered by 2050. So if it takes a cleared & replanted old-growth forest 60yrs to become the same annual carbon sink: Verboten!
One item states: we must avoid sink losses from NOW that can't be recovered by 2050. So if it takes a cleared & replanted old-growth forest 60yrs to become the same annual carbon sink: Verboten!
You know if you've been followin me for a while, I still have a project related to sinks and what happens to fossil CO2 merely "parked" in now dying trees.
So here's my sink and theirs. Mine shows smoother variations bc: both sinks; derived solely from fossil emissions; no LULUC
So here's my sink and theirs. Mine shows smoother variations bc: both sinks; derived solely from fossil emissions; no LULUC
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