The U.S. Conference of Mayors (USCM) on Monday approved a resolution supporting a 100% renewable energy goal by 2035, and launched the Ready for 100 campaign to support the utilization of more clean power. The group of more than 250 U.S. mayors also passed resolutions to support vehicle electrification, energy efficiency grants and city-driven plans to reverse climate change. The resolutions are symbolic and represent statements of intent for city planning and work with federal and state governments. Interest in renewables is already running high in cities: A joint survey by USCM and the Center for Climate and Energy Solutions found almost 70% of responding cities already generate or purchase some clean energy, more than 20% are considering the option, and more than 60% are buying low-emissions vehicles for fleets.