Greenspace Alliance (greenspacealliance.ca) is an environmental advocacy organization based in London Ontario. Our objectives are the preservation of greenspace and the urban forest canopy. In 2019 a heat event in Montreal killed 66 people. Most were seniors who lived alone in areas unprotected by tree cover. This event caused a new awareness in Montreal of the risks particularly to seniors of poor urban forest canopy and kick started Montreal’s urban canopy acceleration. Research has shown that canopy needs to be at 40% to begin cooling urban areas. Seniors are most at risk from the effects of global warming. Weak municipal policies in London Ontario need to be changed. Go to the website to find out about membership in Greenspace Alliance.