What is going to effect more people is the climate changing. Wars are in our power (more or less) to say no to - climate change is beyond us now. It is engaged. No recourse but to manage it. We can choose not to war with each other.
General consensus across the board - no outliers - is that we are well-and-good cooked, literally. Were we to stop CO2 emissions on a dime in the instant, that would be a good thing, but the system is in motion. Inertial forces are in play regardless of human action at this point. The dragon has been waked. We can only manage the situation at this juncture - and we will (imo). We are in the process of trying to figure out what the 'new normal' is and will be. The systems igniting are very complicated. We definitely don't have all the answers.
This is just me but I believe that the sea-level-rise is a given (say goodbye to most of Florida). The East Coast (of the US) by 2100 will be unrecognizable. Really massive cultural/economic changes will engage around 2050 and continue from then on (we are seeing the pre-history of those changes now). Consider: they are going to have to move entire cities, or significant parts of cities (like Miamai, NYC, Boston). Some cities, like Miami, will disappear in total. Inland will be a good place to be - though sea-rise will have some impact anywhere that is on the water. Inland will be filled with all the re-located inhabitants of the emptied cities. (This will be a slow process, complicated by the emergence of desert in the far west of the continental US - including Mexico: Think in terms of Elevation!)
If there are outliers now, it is those who say we are not yet past the tipping point, though, fact is, there are many tipping points, and some we cannot know about except in retrospect. Makes making 'the call' difficult.
One tipping point that is having tremendous consequences even as we speak is the warming of the oceans. (Massive die-offs in the marine food-chain do not bode well for any of us on the planet). That is happening - and 'cooling the oceans' is not going to be fast like cooling on the landmasses. That's the inertial forces that we have set in motion and will be dealing with the consequences for a very, very, very long time. One thing is certain, the world you and I have known is not the world we currently are in, nor what the world will be. We have been finding that our prognostications (computer models) have been too conservative. Sobering, but it means we have a lot of work to do. Never say die. I do believe humankind will figure it out. We have to - the physical world is too important to the spiritual world. (
My bias showing).
