To the Editor:“A Forest of Ancient Trees, Poisoned by Rising Seas,” by Nathaniel Popkin (Op-Ed, Dec. 27), provided a litany of reasons to be pessimistic about our planet’s future. Among them: World Wildlife Fund’s 2018 Living Planet Report, which found a staggering decline in wildlife populations since 1970. At World Wildlife Fund, we agree that this report and others listed by Mr. Popkin point toward a profound global emergency. But the Living Planet Report also comes to an additional conclusion: While time is increasingly short, we can still change course. Carter RobertsWashingtonThe writer is president and chief executive of the World Wildlife Fund in the United States.

Source: New York Times January 13, 2019 18:00 UTC