I can envision some day in the future when everything is collapsing and the corporate world reaches out to science for a solution and scientists will say it's too late, you should have listened.
So long as there are fossil fuels still in the ground (most are) and forests yet standing (quite a few are) we can do something which makes a difference.
Forests become even more, as per statistics.
I know you are hersaying, anyway
Climate change doesn't exist if you have no object permanence or just really, really like money.
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.