This is one of these interesting topics where people are very likely to ask, "Have they thought of this?" And it would be great if there were a list of discarded ideas along with the reasons for why they were discarded.<p>For instance I specifically would like to know if large areas of IR reflective material could be used to cover strategic areas in the arctic and antarctic to build up ice barriers. Coat sensitive areas with something that stops the ice from absorbing heat and hey presto maybe you get significant gains for your investment?
Geoengineering is just a money sink if the root cause isn't tackled. This proposal might slow down SLR, but the oceans will continue to sour, temperatures to rise and weather becomes more economically threatening.
We are still in an ice age and we just happen to live in an interglacial period. The Earth has the large polar continent, and multiple other continents arranged such that they greatly impede the free flow of water currents around the globe that are necessary for mass glaciation. In these conditions, glaciation can easily lead to a positive feedback loop and once that gets going the effect is rapid (think order months to years, not decades).
I’m increasingly of the opinion that slow is not the way to go. Too many people refuse the existence of human caused climate change. So let them feel the brutal, undeniable affects. Maybe we’ll luck out and we’ll pull our collective hands off the hot iron before permanent scarring occurs.
1 meter in 100 years sounds a bit anti-climactic. With the kind of socioeconomic problems rising it sounds kind of dumb thing to care about. People will have decades to move and evacuate. Sure, some infrastructure will be wasted, but it's not like the end of the world that everyone is trying to portray.