An environmentalist is someone who supports the goals to improve and enhance the quality of the natural environment. The objective is to protect the air, water, plants, animals and other natural resources and an environmentalist is ideally an expert in these subjects. Environmental pollution is a growing concern and has raised various issues like resulting in the depletion of various species and has displaced numerous humans and animals from their natural surroundings. So many individuals who are environmentalists continue to fight till today and have contributed immensely in protecting the environment. Al Gore, Theodore Roosevelt, John Muir, Rachel Carson, Edward Abbey and Wendell Berry are some examples of famous environmentalists. Even actor Leonardo DiCaprio plays a huge role in environmental protection. Keep reading to know the full list of environmentalists.