The worldâ€™s food system is driving a third of all human-caused greenhouse gas emissions.
Changing diet to avoid eating meat and dairy could be the key to reducing an individualâ€™s effect on the planetâ€™s environment, according to some scientists.
A recent report entitled Meat Atlas put together by several environmentalist groups found that 20 livestock firms are responsible for more greenhouse gas emissions than Germany, the UK or France.
Methane emitted by cows is only part of the problem, says filmmaker Kip Andersen, producer of the 2014 film Cowspiracy.
â€œThe biggest issue is really land use,â€ says Andersen, â€œ90 percent of corn and soy in the Amazon thatâ€™s grown all goes to feed livestock. And so, what youâ€™re doing is youâ€™re clearing away all these incredible carbon sinks, which are trees, and just destroying it.â€
This week on UpFront, Marc Lamont Hill talks to filmmaker Kip Andersen about the effect the food industry has on the environment.