Computers contribute to global warming too
"Of course, the polar caps are melting now, thanks to global warming, not supercomputers, so there goes that idea."
Eh? Don't even think of trying to disassociate computing from contributing to climate change (which is what we more properly call global warming these days) - computers use electricity, and datacentres eat vast amounts of power. Even if they're going to open their windows at times instead of using power-hungry air conditioning, the servers are still going to be chewing through electricity - and all that electricity requires a turbine to be spinning to generate it. More often than not, that is generated by burning fossil fuels.
Before someone says 'nuclear', well there is a sophisticated argument that basically says that all the gubbins that makes nuclear electricity generation possible (massive construction, support services and storage for spent fuel) means that nuclear power can hardly claim itself as being carbon neutral. I dunno what I think about nuclear power, but nonetheless that's not an argument that can be ignored simply because it is inconvenient.
I'm all for generating as much electricity as possible from renewables (wind, wave, water), but we're not anywhere remotely near doing that.
So in the meantime don't go around claiming that computers have nothing to do with climate change - because they sure as hell do.