We'd still be in the stone ages if the world were filled with people like you.Don't you have google? 4 cities in AmericaYou heard wrong. There is not one city.Arizona? I don't remember but I've even heard there are entire countries that are running entirely on renewable energyIt aint about pessimism, which city do you refer to?When we need to use coal and oil, knock yourself out, but where you don't, don't.
Pbs shows us solar panels powering small cities around the world. Someone will figure it out despite your pessimism.
4 U.S. Cities That Have Gone 100% Renewable
and 5 countries
5 Countries Leading the Way Toward 100% Renewable Energy
And every single one has coal fired power generation for the 18 hours their systems do not work..
You are so dam gullible! Use your head for something more than a hat rack..