Having failed with drowning polar bears, global superstorms, rising sea levels and a myriad of other manufactured hoaxes, global warming alarmists have invented a new threat to try and persuade us to pay carbon taxes directly to Al Gore and the global elite – vengeful environmentalist extraterrestrials from outer space.

“It may not rank as the most compelling reason to curb greenhouse gases, but reducing our emissions might just save humanity from a pre-emptive alien attack, scientists claim,” according to a Guardian report.

A new study conducted by researchers at Nasa’s Planetary Science Division posits that “green” ETs might get angry at Bubba driving his gas-guzzling SUV and respond by wiping humankind off the face of the earth to “protect other civilizations”.