Final answer:
Sustainable development is the management philosophy that encompasses preserving the natural environment by ensuring that current economic growth does not harm the prospects of future generations.
Step-by-step explanation:
The management philosophy that includes preserving the natural environment is known as sustainable development. Sustainable development refers to a development strategy that works towards meeting the needs of the present without compromising the ability of future generations to meet their own needs. This concept is rooted in the principles of environmental conservation, ensuring that economic growth and activity do not deplete or damage the natural environment in a way that affects its longevity and productivity for the future.
Environmentalism is a broader movement that prioritizes the preservation and protection of the natural environment. Through practices like ecotourism, which allows people to experience and appreciate natural environments in sustainable ways, this philosophy is being integrated into various sectors. International conservation organizations often advocate for and manage conservation areas, promoting philosophies that align with sustainable development.