The action that is not listed in your options is "refuse." However, it's important to note that "refuse" is actually a valid strategy for protecting the environment, as it involves rejecting unnecessary items or practices that contribute to waste and pollution.
The four commonly recognized strategies for protecting the environment are often summarized as the "4 Rs": Reduce, Reuse, Recycle, and Refuse. Since all options you've listed are valid strategies, none of them can be singled out as "not a strategy."
If you’re looking for a specific response to choose, please clarify the question or provide more context!