> most of the energy in plants comes from the sun, but it is fossil fuels that power most of the nitrogen fixation needed to unlock that photosynthesis Just to

> most of the energy in plants comes from the sun, but it is fossil fuels that power most of the nitrogen fixation needed to unlock that photosynthesis Just to build on this, we expend (at least) 7.3 calories of energy to produce 1 calorie of food (https://sustainability.emory.edu/wp-content/uploads/2018/02/InfoSheet-Energy26FoodProduction.pdf https://sustainability.emory.edu/wp-content/uploads/2018/02/...).