Exactly what can a city do to change global climate? This is insane.
Not rebuild New Orleans?
With California as the general model, this is what they want at the city, county, state and federal levels:
Expand the use of renewable energy and transform our energy system to one that is cleaner and less dependent on coal and other fossil fuels. Increase vehicle fuel efficiency and support other solutions that reduce U.S. oil use. Place limits on the amount of carbon that polluters are allowed to emit. Build a clean energy economy by investing in efficient energy technologies, industries, and approaches. Reduce tropical deforestation and its associated global warming emissions.