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Cycling like the Dutch would slash the world’s carbon footprint
(www.euronews.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.
You can buy an €8k bakfiets or long tail that's a full car replacement and it's still cheaper than just the price of owning a car for a single year. Even top end bikes are dirt cheap compared to cars.