Climate change, greenhouse emissions, dirty coal, green energy; these are just some of the buzz words gaining prominence these past few years. But are these environmental activists focusing on the true cause of climate change? The CEO of farm animal welfare charity, Compassion in World Farming says our focus should be directed at commercial agriculture. Philip Lymbery has key insights into how cattle farms are contributing to global warming. Lymbery is also an author, ornithologist, naturalist and animal advocate. Guest: Philip Lymbery, author, CEO of Compassion in World Farming