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A hydrogen-powered air taxi flew 523 miles emitting only water vapor
(www.popsci.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.
Scaling mostly reduces economic costs, not environmental ones (latter primarily through better logistics).
Exactly! And we'll need even more if we want to use hydro. That's my point, besides the fact that building cars is extremely wasteful to begin with.