<a href="http://www.theguardian.com/environment/2014/jul/21/giving-up-beef-reduce-carbon-footprint-more-than-cars">Giving
Up Beef Will Reduce Carbon Footprint More Than Cars, Says Expert</a>.
Ссылка: https://stallman.org/archives/2014-may-aug.html#22_July_2014_%28Beef_and_the_carbon_footprint%29