The Conservation Stewardship Program provides a 4 to 1 return on investment. The House version of the farm bill would eliminate the program.Eliminating a USDA program that helps farmers increase yields while protecting the environment would cost taxpayers billions of dollars in economic and ecological benefits, according to a study by conservation-minded scientists. The Conservation Stewardship Program (CSP), which currently helps U.S. landowners manage 72 million acres of agricultural land, is zeroed out in the House version of the farm bill. The Senate version enacts reforms and small reductions in the program. CSP needs more, not less funding, advocates say. “It’s been a great tool for me,” said Aaron Johnson, a grain and cattle farmer from Madison, South Dakota. “I certainly appreciate the support I get from taxpayers to help make my farm a lot more environmentally friendly.”