Recently I have come across some fairly alarming information about the rapid melting of the Arctic and release of Methane etc etc mass extinction etc etc. Whilst I had heard about this before (having been paying attention to what scientists have been saying about Climate Change for the past 17 years), the timescale of the suggested apocalypse is somewhat shorter than previously imagined, and the probability of stopping it once it begins appears to be about 0.0%.
So my question is, how accurate is the suggestion that within a decade we will see an ice-free Arctic and the release of cataclysmic amounts of Methane into the atmosphere?
Also, in relation to Geoengineering, aside from the 10,000 wind pumps, could mirrors be constructed to help reduce melting? Kind of like the Space Mirrors but on the Arctic instead of in Space. Being a person with no specialized knowledge, I wouldn't know how feasible or useful this would be, but it seems like everything possible has to be done to stop the melting.
Sorry if either of both of these have been addressed already.