^Walsh, Brian; Editors of Time Magazine (2014). Global Warming : The Causes - The Perils - The Solutions - The Actions - 51 Things You Can Do, Time Home Entertainment, Inc. BiggerBooks. ISBN 9781603202480 (revised May 2022)
^ (2013). Global Warming : The Causes - The Perils - The Solutions - The Actions - 51 Things You Can DoECampus. ISBN 9781603202480 (revised May 2020)