As this word is used in a undistinct manner for:
- environmental militant/activists
(which only implies an opinion, often in connection to an NGO and/or or a political party)
AND
- environmental scientists
(which implies a lot of study in "objective"sciences such as physics, chemistry, biology, thermodynamics, process technologies.... together with non scientific fields such as economy).
Other languages have clearly differenciated words for both.
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