Climate change campaigner Al Gore believes turning vegetarian could aid the battle against global warming. Substituting more fruit and vegetables in an everyday diet was the responsible thing to do, he said.
In the clip below, Gore is asked about the recent advice to go vegetarian by UK Climate Minister, Lord Stern. Here is an article reporting Lord Stern's advice:
People will need to turn vegetarian if the world is to conquer climate change, according to a leading authority on global warming.
In an interview with The Times, Lord Stern of Brentford said: "Meat is a wasteful use of water and creates a lot of greenhouse gases. It puts enormous pressure on the world's resources. A vegetarian diet is better."
Direct emissions of methane from cows and pigs is a significant source of greenhouse gases. Methane is 23 times more powerful than carbon dioxide as a global warming gas.
Lord Stern, the author of the influential 2006 Stern Review on the cost of tackling global warming, said that a successful deal at the Climate Change Conference in Copenhagen in December would lead to soaring costs for meat and other foods that generate large quantities of greenhouse gases.
Watch Al Gore discuss this issue: