In WWII, New Zealand had glaciers. Ain't got none now. Greenland was bigger too. But if change doesn't happen between fill-ups, I guess to some it never happened at all.
I don't see global warming as necessarily bad because I don't live in New Orleans or NYC. Also, contrary to what some have said about GW benefiting Canada, I see the Canucks growing less wheat and fewer trees. OTOH, some might say less BC wine would be a benefit to mankind, so I'll admit the consequences are debatable.