<p>The UN estimates about a third of the world's green house gas imissions come from food.</p><p>The rule of thumb has been to eat more plants and fewer animals, emissions from meat-rich diets, which includes dairy are 4 times higher than that of vegan diets.</p><p>Marco Springmann at University College London "Reducing the amount of meat and dairy you can consume and increasing the amount of fruits, vegetables, whole grains and so on. would always be No.1 recommendation."</p><p>Eating and serving a chicken instead of beef per day can cut a diet's emission nearly in half because cows, sheep and goats burp.</p><p>I'm Lisa Dwyer.</p><p> </p>
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