An Arizona State University assistant professor says laws regarding natural resources on public land are antiquated and prevent voluntary conservation. “Use-it-or-lose-it requirements, together with narrow definitions of eligible uses, can preclude environmental groups from participating in markets for natural resources,” said Bryan Leonard, a senior sustainability scientist at ASU who was the lead author on a recently published policy forum for Science. “These restrictions can bias resource management in favor of extractive users, even when conservation interests are willing to pay more to protect resources from development.” Leonard said resources can include oil, gas, water and a variety of minerals and raw materials. He added the laws were created in the 19th and early 20th centuries when the country’s priorities were different, and they now need to be updated. Read the ASU News Q&A with Leonard about his article and resources on public lands.