Wow what a great thread+intro.
It deserves a lot more discussion IMO.
1) One of the marks of a climate challenges Planet like that are climate refugees, for example nearly 90% of the population of Bangladesh will be in the water even with moderate melting/warming.
They will try to flee somewhere.
yet India has ALREADY built a guarded wall for just this eventuality over the past few years.
And they shoot , sometimes, w/o warning and sometimes to kill.
When Billions of people will flee their now inundated or desertified lands ( yes Billions) every country that hopes to maintain a decent land/resources to people ratio will have adopt similar policies or perish.
2) As food production is under pressure, housing and infrastructure get damaged for trillions of dollars, living standards will plummet for nearly everyone, but some will still be better off than others. (When I leave the Army, or get RIFed, I hope to retrain as a petroleum engineer which will assure me good money flow no matter what). Some jobs will always be well paid even by today's standards; Petroleum Engineering, Nuclear Engineering, Chemical Engineering and to a lesser extent Chemistry, and other STEM fields.
3) the social net will disappear. When we are old, the notion of even moderately comfortable pensions, or a livable social security will be considered an unrealistic and quaint expectation.
4) Politically when there is stress on a nation it usually turns to totalitarianism. I dont know if we will be able to avoid it in this country as some of the first turns for that have already been made in recent years. I belive in 100 yrs most countrys might be eithe ra Haiti, with no resources and desolation where people (literally!) eat dirt cookies or North Koreas where an evil elite rules with a cruel iron fist but manages to maintain a modicum of a functioning industrial society.
5) Locations, that will be best under global warming: the US north, Canada, Russia, Some parts of northern Europe maybe (BUT if the Gulf Stream collapses which it now looks like it's already slowly starting based on salinity measurements, it might get very cold there, ironic isnt it?)
The primary question posed in the thread is how does this affect our personal long range plans.
Here is my plan:
1) Convert to an Engineering degree after leaving (or being RIFed form) the Army.
2) Collect precious metals as their value seems constant . For example the same amount of silver or gold that bought a bushel of wheat in 1 AD , bought a bushel of wheat in 1000 AD bought one in 1500 AD and buys one now, plus/minus 10/20%)
3) Be well armed and be practiced in the use of those firearms you own (Just this week I shot my AR's 4 times, alternating between Irons, Aimpoint, Eotech, doing updrills reloads drills etc )
4) Stay in shape. I had some bad workout injuries 3 years ago n ot fully recovered yet . Back then I worked out 12 times a week (running, LOTS of weights, kick boxing, swimming). Too much for a 40 something it turns out.
But I sure looked good while limping into the Doctors office
. but I Learned my lesson and keep it at 6 careful workouts a week now.
5) Be resilient. I keep my teeth in perfect health, stash vitamin tablets and just had eye surgery done so I am independent of contact lenses now. Only one of my eyes had perfect results. Luckily its my shooting eye.
6) If we play our cards right, we might even be able to enjoy fine cars when many others are having trouble just existing. I am sure in 2040 they will make a Nissan Z and I intend to own it.
Of course much of the above only holds if a modicum of society still exists. but I think in my lifetime the lights will (mostly) still stay on.
In a TEOTWAWKI scenario, the answer would be to see if my resources (truck full of guns, ammo, food, silver) and skills buy my entrance/ membership into a resilient rural community. That's nothing to count on though..
The future will be exciting. I just wish I was a little younger so I could experience the upcoming interesting times more.
Recommended book reading: "Lucifers Hammer"