Earlier quoted context omitted.
> oil companies Yes. They've known about their products causing climate change for decades. They should be liquidated. > agriculture companies Some, not all. > and all the large banks Only the ones that are "too big to fail" or those engaged in illegal activities.
So... who provides the energy that makes our lifestyle possible is this magical world of yours?
It takes an infinitesimal amount of land if you were going to use solar alone [1]. There is enough wind power potential in the US midwest, from North Dakota to Texas, to power the entire US 4x over [2]. There's enough generation capacity to move 77% of light vehicles in the US over to electric immediately. There's plenty of energy to go around.
Fun fact: The latest budget bill that passed at the end of 2015 had one of the largest subsidies (ITC production tax credit) for solar and wind generation installation ever.
[1] http://cleantechnica.com/files/2015/05/Land-art-AreaRequired...
[2] http://www.energy.gov/sites/prod/files/2015/05/f22/Enabling-... (page 6)