For starters, modern food production relies on fertilizers produced with fossil fuels. See "the green revolution": https://en.wikipedia.org/wiki/Green_Revolutio

For starters, modern food production relies on fertilizers produced with fossil fuels. See "the green revolution": https://en.wikipedia.org/wiki/Green_Revolution https://en.wikipedia.org/wiki/Green_Revolution quote: "associated with chemical fertilizers, agrochemicals, and controlled water-supply (usually involving irrigation) and newer methods of cultivation, including mechanization" Billions of people are only alive today because of that.