By "alarmist" you imply the warnings are unwarranted. The science unambiguously shows we are heading for a global scale disaster.
Your science is faulty and it proven to be so more every day. Talk about fear mongers.
Natural gas is still a fossil fuel. Moreover the new wave of unconventional mining is utterly reckless on many fronts.
What has fossil fuels got to do with it. care to elaborate about the mining and where?
Fuel made from food crops is probably the stupidest idea ever. Moreover it isn't effective because in the full cycle it produces a least as much carbon dioxide as it avoids. Indeed it is only viable through subsidies delivered because of the strength of the farm lobby in the US.
I have to agree that by processing corn to go into gasoline is the dumbest thing around. Want to tear up your car and other garden engines, just get some of that Green Gas. Now, I use corn for heat but I also raise it for profit and feed. Don't guess it matters too much if I use a bushel or two to heat these old bones during the winter.
There is still a lot of open ground that could be collecting solar energy. More than enough to meet one hundred percent of Califoria's needs.