I once wrote a short story about sinkholes. Admittedly, it was mainly a gripe about the number of sinkholes my car had to avoid on the journey from my house to the train station – my local council aren’t always the speediest at repairs – but I’d decided that they were the source of plague infected zombies. Seems that in Siberia, at least, I wasn’t far wrong; melting tundra ice (and the resulting sinkholes) is releasing long-dormant anthrax spores along with the buried methane – a major greenhouse gas. Diseases that many scientists had thought had died out may yet come back to haunt us. Let’s just hope the CDC still have vaccines.
It’s not easy to tell from some of the pictures just how big these sinkholes are, but they are enormous. The glaciers lock into the earth by freezing into gaps in the earth’s crust, trapping methane and other greenhouse gases in the ice – as well as spores, bacteria and goodness knows what else. Captain America, probably. So when the climate heats up, the ice melts and everything securely tucked away is returned to the Great Unknown, including diseases we no longer have – or perhaps never had – any immunity to. It’s interesting because a similar mechanism is used for the start of the Zombie Apocalypse in World War Z; a child goes swimming in a millpond in China and ends up with this nasty virus… just move everything to Siberia and you have an entire new film franchise.
Equally – and for my part, more disturbingly – the release of the methane creates a positive feedback loop, by increasing the global temperature, thereby melting more ice and causing more sinkholes… you get the picture, I’m sure. Perhaps the zombies might be the lesser of the two evils.