Sierra's editor in chief sums up the good, the bad and the ugly.
Dave Showalter photographs a beautiful but fragmented landscape.
Funny or Die's celebrity-filled song mocks global-warming skeptics.
The rock star climber discusses his new foundation, sustainable development and the environment.
We honor a group of activists, writers, photographers, and government officials who have worked passionately for the planet.
Cynthia Portillo organizes high school students to combat air pollution in the Coachella Valley.
Mark Honstein, a wind turbine technician, climbs 280-foot-tall towers with spectacular views.
From 2005 to 2014, we increased our wind power by a factor of 10 and generated 33 times more solar electricity.
The manager of a wildlife refuge couldn't get kids to visit, so she helped bring the refuge to them.