The documentary Meat the Truth is the first major project undertaken by the Nicolaas G. Pierson Foundation. Meat the Truth is a high-profile documentary, presented by Marianne Thieme (leader of the Party for the Animals), which forms an addendum to earlier films that have been made about climate change. Although such films have convincingly succeeded in drawing public attention to the issue of global warming, they have repeatedly ignored one of the most important causes of climate change, namely: intensive livestock production. Meat the Truth has drawn attention to this by demonstrating that livestock farming generates more greenhouse gas emissions worldwide than all cars, lorries, trains, boats and planes added together.