environmentalism
n.the belief that we should protect the natural world and stop harming it. It involves taking action to keep the air, water, and land clean.
n.the political and social movement dedicated to the protection of the natural environment. It encompasses both the ideology of conservation and the practical efforts to mitigate ecological damage.
“Environmentalism is becoming a major focus for many young voters.”
“The city council passed new laws to support environmentalism by banning single-use plastics and expanding public parks.”
“While early environmentalism focused primarily on preserving wilderness areas, modern movements often address the systemic causes of climate change and industrial pollution through legislative reform.”
From environmental + -ism.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.