https://ig.ft.com/one-trillion-trees/
More than 100 countries had just pledged to spend $19bn of public and private money to reverse forest loss. “We have lost 3tn trees on our planet,” Benioff said, punctuating his words with a clap.“We need to plant a trillion trees.” This amount, he added, would absorb 200 gigatonnes of carbon — the equivalent of two-thirds of existing human-made emissions.
Their intentions are commendable: draw down carbon, nourish biodiversity and improve livelihoods by returning trees to planet Earth. But the simple idea is now rubbing against a complex reality, as some scientists raise myriad concerns — from a dearth of free land to the unreliability of new trees when it comes to carbon storage.
The Intergovernmental Panel on Climate Change says protecting and restoring the world’s forests is critical for limiting the global temperature rise to 1.5C above pre-industrial levels, but many argue political and business leaders are focusing too much on “restoring” rather than “protecting”, and latching on to methods they hope will offset emissions rather than prevent them.
