The "killing" of a planet's ecosystem and environments - synonyms include 'destruction', 'pollution' and other words already constructed and in-use.
Hippie: Dude, strip-mining is killing Mother Earth. It's ecocidal.

Intelligent human: Dude, I'm feeling hippicidal myself.
by To Mock a Killingbird October 7, 2010
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The human activity of destroying or causing irreparable damage to natural ecosystems, typically in the interests of economic gain, or occassionally, for military purposes.
China and India are committing total ECOCIDE just so that we can have more shit to buy from Walmart.
by Peter Ralphs February 18, 2008
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Ecocidal Maniacs: Large population of people and companies that give no importance to the environment in favor or accumulation of money. Many of these people appear to be a new strain of fact resistant human
Current trend in the world seems to be run by ecocidal maniacs who favor accumulation of wealth with no regard to the environment. Many of these people appear to be a new strain of fact resistant human
by Dgnflyinca May 10, 2019
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