Friday, 5 July 2019

boreal

Though not totally out of the woods (like the paradox that holds one can only wander half way into the forest because after that point, one is on the way out), Swiss researchers bring the encouraging news that planting a trillion trees could reduce carbon dioxide levels by fully two-thirds, sequestering the green-houses gases that man has been flagrantly pumping into the atmosphere for the past quarter of a century.
That last third will be tough to eliminate but together with continuing emission reductions, dietary changes and advancing technology, the task at hand no longer seems as hopeless—the boost from the trees, according to new models, far greater than expected. Not only would the massive greening of the planet be logistically tenable and a bargain too great to pass up—at around thirty cents per sapling, it would cost all of three-hundred billion dollars—and despite the considerable space that this many extra trees would need to grow, continental America plus China, surveyors have found room at the borders and verges and in derelict land without taking any places used for growing crops and urban spaces—though more trees would dot pasture lands and be to the benefit of grazing livestock. Everyone can take part and aside from the intrinsic and aesthetic value of trees (helping to stop erosion, drought, flooding and preserve biodiversity), it’s moreover an intervention that is not predicated on convincing the nay-sayers and science-deniers otherwise.