111 years ago

Five@beehaw.org to Environment@beehaw.org – 75 points –
File:Rodney·and·Otamatea·Times•1912•Coal·consumption·affecting·climate.jpg - Wikimedia Commons
2

A few more centuries? Well, that's a relief...

(and technically true; it's unlikely for sea levels to rise 15m in fewer than 500 years)