While I have been writing about the issue of global warming and its effects I haven't written about something we can all do that will have an enormous effect on our own carbon footprint. Try having meatless or animal product free meals a couple of days a wee. I have been a vegan fort about two years and the benefited to me personally include; health, no cruelty to animals and a decrease in my own carbon footprint.
If the reasons above are not enough to give up consuming animals or animal products there is also the economy of being a vegan. It may cost more to be an organic vegan and take more diligence to not eat food that has transport milked embedded in it but once you make the change you will feel better in yourself and you will stop contributing to the carbon pollution of this planet.
In intensive farming that is the Western model, the massive use of chemicals employed deplete the soil of nutrients and decrease the nutrition available to the end user as well as introducing toxins into the food chain.
Much of this is in "The China Study" and the film, "Forks Over Knives", both mentioned below.
So whatever your motivational starting point is it is a win win to become and remain a vegan.