Brazil is the biggest exporter of beef in the world, and more than 40% of its vast 240m-cattle herd is raised in the Amazon region. As a result, swathes of the nature-rich rainforest are being cleared and burned to create pasture.
This is pushing Amazon destruction close to a point of no return, prompting environmentalists and consumer groups to demand deforestation-free meat products. Governments, meat suppliers and retailers have promised to clean up their act, but one of the biggest hurdles is a complex and obscure supply chain that can hide the origins of meat products.
