Data presented is almost to perfect (and this is not saying to be clear that global warming doesn't exist just raising the issue). For example accuracy of data from the 1800's or early 1900's. Noting there does not appear to be anything on the site that explains where the data came from to make up these charts. Spining globes with info from the entire world? How did that get into these charts? Why is the assumption that what is presented here is vetted and correct (specifically again no way easily to dig back to see what was used to compile all of this).
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