No, really. That is what they are doing at NASA these days. They
pulled the plug on manned space exploration, but they are
warning about global warming alien destruction. Sigh. “Gort,
Klaatu barada nikto.” “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. Watching from afar, extraterrestrial beings
might view changes in Earth’s atmosphere as symptomatic of a
civilisation growing out of control – and take drastic action to
keep us from becoming a more serious threat, the researchers
explain. This highly speculative scenario is one of several
described by a Nasa-affiliated scientist and colleagues at
Pennsylvania State University that, while considered unlikely,
they say could play out were humans and alien life to make
contact at some point in the future. Shawn Domagal-Goldman of
Nasa’s Planetary Science Division and his colleagues compiled a
list of plausible outcomes that could unfold