Posted by Kirsten Pisto, Communications We know you all love animals and want to protect wildlife, but it’s not always easy to know what you can do from home that will make a difference. This Earth Day, we've made a list of five easy, impactful ways you can celebrate Planet Amazing (that's Earth). 1. HANG OUT IN THE DARK A starlit sky over tiger territory in Peninsular Malaysia. Photo by Jeremy Dwyer-Lindgren. Woodland Park Zoo. Why: Every year people turn off their lights during Earth Hour. The worldwide one-hour event has become a symbol for appreciating the planet, but you can celebrate Earth Hour all year long. Spend some time in the dark once or twice a week, or promise to turn out the majority of your lights an hour before bedtime, you'll sleep better too! Turning off lights and unplugging is an easy way to save energy and become mindful of how much energy you are using. How: 40% of total U.S. energy consumption is consumed in residential a...