alt Hacker News> He added that growing banana plants in the UK is not new for a "geek in the plant world", but perhaps still niche to the average person.
Also, do you think that it may have something to do with being cities with stone and steel that absorbs and radiates heat, and that cities are no longer as filled with trees due to urbanization and immigration filling them with people?
For context, London, Rome, and Paris have respectively gone from 2.6M, 175K, 1.05M populations to 14.5M, 4.3M, and 12.4M; so basically a 6–25x population size in ~125 years. You don’t think that may have something to do with it?
More context 10 million people produce about 1-1.5 gigawatts of continuous heat energy alone. That’s energy that would also be absorbed into stone structures of European cities even if to an unapparent degree, especially in the summers.
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The population of London isn't much more today than it was in 1930. And the population density is more or less the same too. I think it's unlikely that people's bodies are the cause of heating. Greater London for example would receive about 1572 MW of solar irradiance on a sunny day.
This is called the urban heat island effect. It’s well studied and well understood.
This is the first time I've seen someone blame immigration for climate change.