Overview: Eating pollutes: however we put it, this is an incontrovertible truth. Already today, food production alone is responsible for 30% of greenhouse gas emissions. But then what should we do? In the meantime, be careful not to waste it, over 17% is thrown away. Then understand that there are foods that have more impact, others less. Eating less meat would be a good place to start. Finally, invest in technology, focus on sustainable agriculture which guarantees the same results but with less water, less fertilizers, fewer pesticides.