The past is prologue. Our understanding of how CO2 levels relate to global temperature came out of 19th-century scientists studying the newly discovered Ice Age. In the generations since, our studies of how the last Ice Age ended showed us monstrous flooding as vast bodies of meltwater were released by crumbling walls of ice to rush across the planet carving out huge rivers, and global sea levels rose hundreds of feet in a matter of a couple centuries.
The past is prologue, and the ice is melting. The flood is coming, and we are not prepared.
