I don't drink enough of leftist kool-aid to know exactly what.
Libertarianism is orthogonal to the traditional left-right dichotomy, you can find libertarians anywhere on that axis. It's more useful to see the political compass as two dimensional, with libertarian vs authoritarian on a north-south axis and left-right as the east-west axis.
I'll take these people seriously about global warming when they start talking about what will take the biggest chunks out of our CO2 emissions, and doing that themselves.
Translation: I refuse to make any sacrifices to mitigate climate change until my preferred method of action is implemented.
First, switch electricity production to onshore wind, hydroelectric dams, and nuclear fission power. Those give the highest gain on energy invested, lowest CO2, highest safety, least land and material resources, and at the lowest cost.
Wrong. Nuclear is ridiculously expensive and doesn't belong in that list, especially when you neglected solar. Nuclear is dead in the water based on cost alone, let alone the unsolved spent fuel problem or the 10 year build times. Renewable energy has 3 times the decarbonisation potential of nuclear for every dollar spent.
Live within your income, even if you have to borrow to do so. -- Josh Billings