An economic surplus is also known as total welfare. An economic surplus is related to money, and it reflects a gain in the expected income from a product. There are two types of economic surplus: consumer surplus and producer surplus.
A bit academic in terms of style, but accessible, nonetheless! Environmentalism refers to a social movement and associated body of thought that expresses concern for the state of the natural environment and seeks to limit the impact of human activities on the environment.
The Definition: Ecotourism is: Responsible travel to natural areas that conserves the environment and improves the well-being of local people. (TIES, 1990). Principles of Ecotourism: Ecotourism is about uniting conservation, communities, and sustainable travel.