Forest attrition study (original paper here)

New York Times: How Far to the Next Forest? A New Way to Measure Deforestation
Washington Post: Americans once moved away from forests. Now forests are moving away from Americans Farther from forest: ‘Eye-opening’ study says rural US loses forests faster than cities
UPI: Study: The forest is getting farther away, especially in rural America
Mashable: Hug a tree while you still can: U.S. forests are disappearing
Inverse: The Nearest Forest is Farther Away Than You Thought
ResearchGate: The average distance to a forest is increasing for Americans