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New Nature Comment showing governments' forest restoration plans will miss climate targets -- because 45% of pledged 'forest restoration' is actually slated to grow vast monoculture plantations (largely for the pulp and paper industry). https://www.nature.com/articles/d41586-019-01026-8 … 1/6pic.twitter.com/Qd6BSWRqFV
But, if 'forest restoration' really meant allowing natural forests to return, then the aspiration of 350 million hectares of new forests by 2030 (bigger area than the size of India) would largely meet 1.5C goals for negative emissions from forests. Using plantations will not. 2/6
A new definition of forest restoration is needed that excludes monocultures of tree crops, otherwise the public risk being misled, and worse the advertised carbon benefits are largely absent. 3/6
Plantations are poor at storing carbon as they start in carbon debt as land is initially cleared for planting, then later the trees are harvested + land cleared again. The plantation waste and wood products decompose (paper, chipboard) returning carbon to the atmosphere. 4/6
By contrast natural forests, if protected from fire and other major disturbances keep sequestering carbon for decades, in the tropics reaching levels seen in old-growth forest in about 70 years. 5/6
We also suggest ways to increase carbon stocks within existing restoration schemes. Written/analysed with Charlotte Wheeler, @EdMitchard, and @kochalex_. A top team! 6/6
Such restoration also has other benefits from water management (less flooding, provision of water in the drier periods of the ), and providing more space for biodiversity, and so lessening the coming waves of extinction as the climate rapidly changes. 6/7
It is sad plight of good philosophy with new definition to fulfill own vested interests and agenda.
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