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Why Green Skyscrapers are a Terrible Idea – Adam Something
(www.youtube.com)
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.
It's always about the money. And if you are building a high building chances are you don't have acres around. And like you say, the solution is not building a dumbass vertical garden, it's politics. Green the city because you as a citizen should force the city to be good