Mark Bittman is a well-known American cookbook author and food writer.

In the video, he gives an incredible and informative lecture on food consumption relating to human health and our environment.

He points out that:

• 1/5th of the green house gases emitted in the United States are generated by livestock production–more than transportation.
• Diabetes, heart disease, stroke, some types of cancer are much more prevalent in the United States than in any other part of the world, and there is a direct correlation between this prevalence and our western diet.