Soon, all we'll be hearing about in the news will be great migrations. What happens to the people who can't relocate. And what happens to the people and places at the destinations.
Might also be piecemeal, where what we see is people moving for "economic" reasons. Hard to be sure what it'll actually look like when it comes to human actions.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.