/sci/ - Science & Math

>>14832103
Of course it didn't. But in case you're seriously unaware: They use all sorts of different proxies from all around the world. You don't need to be there in 1750 when you can analyze a tree that was alive in 1750. And corals that were alive in 1750. And sediment that settled in 1750. And ice that was formed in 1750. And stalagmites that were growing in 1750. You can do all these things today and that is what people have been doing for many years now.

>>14774222
>tree ring data-point.
don't make shit up