There is so much that is frustrating about this movement, even for those who are sympathetic. Carbon and other greenhouse gas emissions are the least of our problems among the continuing environmental impacts of human life. And “green” alternatives only increase those adverse impacts.
They are all less efficient – diffuse – than “conventional” energy sources and therefore require more resource extraction and land use (industrializing vast swaths of the rural and wild) to provide the same power.
Furthermore, wind and solar are intermittent and variable, so they have to be overbuilt (more resources and land, as well as high-capacity powerlines) – and they still need backup: Natural gas–fired generators are ideal because they can respond quickly to balance the fluctuating power. But operating like that makes them less efficient as well, ie, they would emit more carbon as part of a grid with substantial (even as little as 5%) wind and solar than they would if the wind and solar weren’t there at all.
In short, more resource extraction (mining) and land use (habitat loss) and still dependent on fossil fuels, which would now emit more carbon than before. Brilliant.
Where else might this be leading?
Right now, there is only one energy source that is both more efficient and carbon-free: nuclear. The apocalyptic panic of Extinction Rebellion and Climate Strike seems to be doing all it can as useful idiots to revive nuclear as the only solution to their perception of a crisis caused by fossil fuels (ignoring all the other ways that humans trash the planet, or, eg, the mowing down of rainforests for biofuel plantations).
Convinced that they will not have long to live unless we utterly decarbonize (forget the fact that excess CO₂ stays in the atmosphere for centuries – in fact, current carbon levels may be mostly due to coal burning in the 19th century), this generation may usher in a world powered by nuclear. And the resulting pile-up of waste, leaks, and accidents (imagine hundreds, thousands, of Chernobyls and Fukushimas) are more likely to destroy the planet than everything they are protesting.