Because carbon is still externalized. It makes financial sense to invest in dirty industry etc because the margins are effectively subsidized. If carbon was taxed appropriately, this would move around. Until then, of course people whose job it is to provide ROI are going to throw money at dirty industry, especially in the developing world.
Sobering and important read
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.