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Singapore Brings Back 19th-Century Tech to Beat Warming Climate
(www.bloomberg.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.
a small liberal arts college I attended did that for the campus both heat and cold. they ran them under the sidewalks such that in the winter it also melted the snow although now that I think of it that was likely wasting cold water in the summer if the heat could keep the sidewalks at 35 degrees or such.