News and events News Call to action on greenspaces on world earth day On Earth Day we were all asked to take action on greenspaces to combat the effects of climate change Trees and other plants reduce air pollution, offset emissions and reduce the “heat island effect,” where concrete and other infrastructure traps warmth in cities. Parks are also great for minds and bodies, giving access to recreation and relaxation that can’t be substituted. Community gardens and urban farms feed communities, while waterfront parks increase resilience to flooding, rising sea levels and the effects of climate change. What is Earth Day? Earth Day Network’s mission is to diversify, educate and activate the environmental movement worldwide. Growing out of the first Earth Day in 1970, Earth Day Network is the world’s largest recruiter to the environmental movement, working with more than 75,000 partners in over 190 countries to drive positive action for our planet.