In June, an extreme heat wave strained the Pacific Northwest and left the majority of homes in Sammamish unbearable. This unprecedented event underscored the urgent need to take action to prevent the worst effects of climate change. We explore what cities can do on their own to become more sustainable, and compare Kirkland, which has a plan to reduce greenhouse gas emissions, with Sammamish, which does not. We also meet a high school student who tried to get Sammamish to adopt a sustainability master plan, and ask him what happened after he met with Mayor Karen Moran and city officials to pitch his proposal.