Eating a healthier diet rich in fruit and vegetables could actually be more harmful to the environment than consuming some meat, a US study has claimed.

Lettuce is “over three times worse in greenhouse gas emissions than eating bacon”, according to researchers from the Carnegie Mellon University who analysed the impact per calorie of different foods in terms of energy cost, water use and emissions.

Published in the Environment Systems and Decisions journal, the study goes against the grain of recent calls for humans to quit eating meat to curb climate change.

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www.independent.co.uk/news/science/vegetarian-diet-bad-for-environment-meat-study-lettuce-three-times-worse-emissions-bacon-a6773671.html