We live in an age where utter guff is presented to the masses as nailed on fact. The whole global warming (or climate change as it's now conveniently morphed into) and carbon footprinting scenario is just another alleyway we're heading down. Whether it's a deadend or not doesn't really matter. What's important is that it's a cause we can all unite behind. The fact that in another few years it will all have faded behind more important global issues doesn't matter; we live in the now.
Look at all the effort (and OUR money) that's being expended on "reducing" our carbon footprints. What they really mean is trying to slow down the speed of growth of the footprint. Who defines this "carbon footprint" anyway? It's a movable feast. As pointed out here already, organic systems may have a lesser footprint per acre but per unit of food it's much greater. So how do we measure it? If you're sitting round at a dinner party in Chelsea munching tofu (whatever that is!) you'll see it one way. If you're trying to patch a fence in the wind and rain you'll see it another.
Whatever is happening to the world's climate is not going to be dented by a few lightbulbs or mounting a hate campaign against livestock farmers. How exactly are we as humans supposed to digest all this grass that will be growing once we've done away with the livestock? Such simple questions never enter the heads of those with most to say..........
My advice is try not to get too worked up about them attacking livestock production. They're attacking everyone at the moment and more and more people are getting bored with it already. As long as the Chinese keep wanting to buy more and more meat and dairy we've nowt to get too worried about.