environmental science

noun
the branch of science concerned with the physical, chemical, and biological conditions of the environment and their effect on organisms.

Origin:
1965–70

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To environmental science
Example sentences
Environmental science and public health is easy and useful.
And some forms of technological economic growth may actually be in tension with
  some of the major themes in environmental science.
But a branch of environmental science today is devoted to looking more closely
  at the pavement itself.
One has to do with environmental science and intended or unintended
  consequences.
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