Free-market environmentalism is a way of protecting and preserving the environment using market forces, which are the laws of supply and demand in the economy. It is a way of using money to motivate people to do things that help the environment, like using resources more efficiently and finding new ways to produce goods and services with fewer negative effects on the environment. For example, if companies have to pay for using water they will be more careful to use only the amount they need, and they might also invest in finding ways to save water. This could lead to new inventions and businesses designed to help protect the environment.