Agriculture contributes to climate change by anthropogenic emissions of greenhouse gases, and by the conversion of non-•••••••• land such as forest for •••••••• use.
Agriculture, forestry and land-use change contributed around 20 to 25% to global annual emissions in 2010.
Wild foods including wild rice and maple sugar were harvested.
Largest countries by agricultural output according to UNCTAD at 2005 constant prices and exchange rates, 2015
Countries by agricultural output in 2015