Thomas E. Lovejoy III, an ecologist who dedicated his career to preserving the Amazon rainforest, dies at 80

Throughout the course of Dr. Lovejoy’s career, much of it based in the Washington area for organizations such as the Smithsonian Institution, the World Wildlife Fund and George Mason University, he became increasingly alarmed about climate change and the global extinction crisis. In spreading this message, he allied with lawmakers and Hollywood celebrities, often leading them on tours of his research station north of Manaus, the capital of the Brazilian state of Amazonas, known as Camp 41.