Because we keep emitting?
There's no mystery to this, there's too much money in petroleum for too many people for us to just stop using it.
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.
Because we keep emitting?
There's no mystery to this, there's too much money in petroleum for too many people for us to just stop using it.
Big polluters know their resources are finite. They’re deliberately cooking the planet because after some threshold has been reached, they’re going to pivot their enormous infrastructural and industrial capacities into geoengineering.
We’ll be paying BP and Shell to keep the planet cool eventually.
</Tinfoil hat>
That's indeed tinfoil-hattery. These companies care about quarterly profits and they extrapolate the future from the past (where nothing bad ever happened to them). They may find another business model eventually but they'll make it up on the go.
They're extracting as much as possible until the starship is ready and the base on mars is complete.
Or
The new alien overlords like it hot.
Bruh even a +5°C war-torn Earth is an infinitely better place to live than Mars. Mars would just be quieter.
Cause Oligarchs that make money from it sponsor these and own everything
Very specifically, because we are building out additional power infrastructure for AI. That means we keep the dirty sources online longer.