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If there was ever a moment for Australia’s shift to renewables and EVs, this is it
(www.theguardian.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.
that 250k? there are a ton of options that dont require a charge
414km again there are many options that will get you there without a charge, and plenty more that will require 1 stop while you take a leak and grab a snack
you have a car now, so no point in looking again until you need to replace. but electric is a perfectly reasonable proposition for anyone looking for a car today driving the routes you mentioned, especially if you can charge at home.