DeVliegendeHollander comments on California Drought thread - Less Wrong Discussion
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That makes sense on the object level (although I was more interested in the meta, as in how to think beyond econ 101, beyond the supply-demand curve).
I should add that there are grass fields here (Vienna, Austria) that nobody waters and they are green enough - granted, there is far more natural precipitation than in California, granted, they don't look as nice as really "manicured" lawns, but they still look kinda grassy enough. The point is - probably it would be possible to find a different species of lawn grass that looks 80% as good but takes like 30% of the water. I suspect British lawn species may have been imported to Cali and that may not be such a good idea.
Good news - such a species does exist! It's called "Astroturf", and it requires even less than 30%.
Why is it some Europeans have a hard time imagining that not every place has the same climate as Europe?
Because they're human, and humans have a hard time imagining how very different conditions can be.
I know someone who had a hard time raising basil, which mystified me. What could possibly be hard about raising basil? You put it in a pot on a windowsill and water it when it's looking a little limp and it grows.
My friend was living in Wales. Basil needs more sunlight than occurs naturally there.
Left to myself, I never would have believed that water boils at different temperatures in different places. It sounds like a practical joke, but there's good physics behind.