Whats the job of an environmental scientist

these scientist try many different ways to protect the environment (plants trees animals insects ect)

summed up definition:

The field of environmental science strives to understand the complex systems of the natural world and the effects of human actions upon it.

long definition: Environmental scientists use their knowledge of the natural sciences to protect the environment. Environmental scientists and specialists use their knowledge of the natural sciences to protect the environment and human health. They may clean up polluted areas, advise policymakers, or work with industry to reduce waste.