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The second sentence of the article should read “Livestock in particular is a major environmental stressor [1] as it produces an estimated 15% of global anthropogenic greenhouse gas (GHG) emissions [2]”.
Comparing the greenhouse gas emissions of livestock with the transportation sector was formally misleading, as the 15% of emissions from livestock include direct and indirect sources, whereas the 14% of global GHG emissions from the transportation sector are directly produced.
