Shut off some of the streetlights on major highways that dont have a heavy traffic flow,every second one would work.
Anyone whos flown out of a major city at night knows what I mean.
Lets get cracking on co2 sequestering also,this gives us a place to safely store it while useing it to extract more natural gas from wells that are in production but are getting near the end of their lifespan.if they get 3 more years production from a wellsite thats one less hole needing to be drilled and is a more efficient use of the resource.