Why don environmentalists celebrate modern farming on Earth Day?
One might think that environmentalists would celebrate the accomplishments of modern farming on Earth Day. After all, the biggest way humanity disturbs the natural world is in how we produce food. Agriculture uses up more land and water than any other human activity. To the extent that we want to preserve biodiversity and protect natural areas, boosting agricultural productivity is the most vital thing that we can do. Since 1960 global crop yields have more than doubled, with the benefit that the area of land devoted to producing food has not increased very much. If farmers were still producing food at 1960 levels of productivity, agriculture would have had to expand from 38 percent of the earth’s land to 82 percent to feed the world’s current population. This enormous increase in yields is the result of applying more artificial fertilizers, breeding higher yielding crops, a wider use of pesticides and herbicides, and expanding irrigation. More recently, advances in modern biotechnolog
