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“The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary.”
…h. l. mencken (c.1935)
1970: the new ice age! we’re all gonna die!
1980: acid rain! we’re all gonna die!
1990: the ozone layer is gone! we’re all gonna die!
2000: global warming is melting the glaciers! we’re all gonna die!
2010: climate change! in 12 years we’re all gonna die!