This year over 3 million people will die from air pollution. Planting trees can help lower that number. Read more: www.vox.com/energy-and-environment/2016/11/4/13510352/planting-trees-pollution-heat-waves Check out The Nature Conservancy report, "Planting Healthy Air": global.nature.org/content/healthyair /// Trees help improve public health by cleaning and cooling the air around them. As the threat of climate change steadily increases, planting trees is a fairly simple way city leaders can help stem the negative consequences of rising temperatures and increasing population density. Subscribe to our channel! goo.gl/0bsAjO Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: goo.gl/IZONyE Follow Vox on Twitter: goo.gl/XFrZ5H Or on Facebook: goo.gl/U2g06o