answer:Human beings can’t “let mother nature do its own business.” Like it or not, humans are part of nature. We likely had impacts on nature and ecology hundreds of thousands of years before we ever picked up some dung and smeared it on the wall to make a cave painting. What we can do is avoid being completely narcissistic morons. There’s no reason people can’t work towards sustainable agriculture, reducing the impact of carbon emissions, and improving agricultural economics. However, the environmentalist movement would do well to remember that greenery doesn’t always mean greener lifestyles. Improvements have to be processive, and it might mean doing some less dirty things (like replacing really dirty coal plants with less dirty coal plants) than we’re doing now.