While I agree with the need for strength of vision, I do see that time in the saddle and specific issues addressed as indicators of the ability to execute. There must be controversial issues in the past with some sort of stance from the candidate which indicates their ability to lead and muster up a contingency of votes from their peers.
Methane as a by product is a tremendous problem. I too have begun to avoid substances which increase my own production of methane. :) Sorry, I couldn't resist...
One other point to consider is that naturally occurring methane is actually of considerable danger as well. Some say it contributes more to the problem than livestock. Beneath parts of the gulf of Mexico are fields filled methane trapped in ice (methane hydrates) from which permeates methane. These hydrates are quite plentiful around the earth.
Eat more tofu! (I can already see the Chick-Fil-a cows painting these signs...)