Items by Ewen Callaway

A forest in flux
Jon R. Luoma examines old-growth forests through the eyes of the scientists who study them in The Hidden Forest: The Biography of an Ecosystem
The puzzle of plate tectonics
In Grand Canyon: Solving Earth’s Grandest Puzzle, geologist James Lawrence Powell takes a look at the science behind the Grand Canyon, and the scientists who figured it out
A season of change
In Chasing Spring: An American Journey Through a Changing Season, nature writer Bruce Stutz follows spring from New York to Alaska, examining the surprising changes that global warming is bringing