It's the culmination of the hard work of 107 experts from 52 countries.
I've got some big takeaways. Buckle in – it's going to be a long thread.
Land and ocean warm at different rates (thank you @RARohde) for the great figure.
We have 12,000 years of soil debt to repay.
“What we do to our soils we do to our climate - and ourselves”
“Neither our individual or societal identities, nor the world’s economy would exist without the multiple resources, services and livelihood systems provided by land ecosystems and biodiversity.”
Now a couple of BIG takeaways from this latest IPCC report.
First, #ClimateChange and land degradation are THREAT MULTIPLIERS for people already living precariously, populations already sensitive to extreme weather, food insecurity, poverty.
You might be wondering - how did we end up with a land sink, and isn’t that a good thing?
Plants, especially C3 plants, do well with extra CO2 (we call this CO2 fertilization).
But there’s a limit: The CO2 fertilization effect is only possible with enough nutrients.
But as GHG emissions go up, the land sink is already having a hard time keeping up.
Like a dark shirt on a sunny day, the more sunlight that gets absorbed, the warmer the Earth’s atmosphere.
Longer growing seasons and more CO2 may help high latitude crops, but low latitude crops are already losing yields.
Animals are also impacted w/lower growth rates and fertility declines, more pests and disease.
There are many co-benefits of changing how we produce food and manage forests to mitigate climate change.
But there is always a cost.
“Confidence is very high that the window of opportunity – the period when significant change can be made, for limiting climate change within tolerable boundaries – is rapidly narrowing.”