Amazon tipping point: Last chance for action

Thomas E. Lovejoy Carlos Nobre Although 2019 was not the worst year for fire or deforestation in the Amazon, it was the year when the extent of fires and deforestation in the region garnered full global attention. This year, the winds brought smoke from the fires into Sao Paulo, so thick that—after encountering moist air blowing from the ocean—the afternoon skies were darkened and street lights had to be lit 3 hours early for the city to...