Here are additional links that consider connections between animal-based agriculture and global climate change.

The complete United Nations Food and Agriculture Organization report can be downloaded here (7.5 megabyte PDF file).

Livestock's role in climate change and air pollution (from the FAO's 2006 report Livestock's Long Shadow)

EarthSave: A New Global Warming Strategy

Another Inconvenient Truth: Meat is a Global Warming Issue

Another Inconvenient Truth: In the modern world, it is impossible to reconcile a carnivorous diet with environmental responsibility

Warming Up to a New Diet

Diet, Energy and Global Warming

ABC News: Meat-Eaters Aiding Global Warming?

Greenpeace: On Your Plate

Fight Global Warming by Going Vegetarian

Vegan diets healthier for planet, people than meat diets

The SUV in the Pantry

Physics World: Cut Global Warming by Becoming Vegetarian

Five Food Choices for a Healthy Planet

Eco-Eating: Eating as if the Earth Matters

Vegetarian is the New Prius