Vanity Fair presents its first “Green Issue,” beginning an “increased commitment to reporting on the threat to our precious environment,” says editor Graydon Carter.

The May cover features a quartet of eco–power players, capturing Hollywood glamour and activist passion: Robert F. Kennedy Jr., Al Gore, Julia Roberts, and George Clooney, photographed by Annie Leibovitz. Articles inside address the pressing environmental issues of the day: Mark Hertsgaard reports on the reality of global warming; Michael Shnayerson writes on the Appalachian mountaintop-mining crisis; and a Green Guide offers up 50 simple things you can do in your daily life to help save the planet.

Inside you will also find Toronto mayor David Miller standing with his mayoral mentor from Chicago, Richard M. Daley, and several other big-city bosses from across the United States including Miami’s Manuel Diaz, Baltimore’s Martin O’Malley, Greg Nickels of Seattle and San Francisco’s Gavin Newsom.

The May Green Issue of Vanity Fair hits newsstands April 11.

Photo credit: Vanity Fair