Actually what the system falsely calls "Global Warming" is something real, but politicians and rich profiteers give it a name that does not reveal the Truth.
Things started to change about 2000 A.D. I noticed that the Sun was coming farther North in the Spring to 21 June, and then began moving South thereafter. I noticed this by the shadows on the mountains around where I lived. Right now, in Southern Idaho, the Sun rise is close to due East. By December 21, the Sun rise will be in the South East. Even the Eskimos have noticed the changes and have had to follow their current observations, rather than how it used to be.
This June 21, I missed so I didn't get to check the shadow of a vertical post to figure how far North the Sun was on that day.
Before 2000 A.D. the furthest North the Sun went, was the Tropic of Capricorn a bit South of the Southern tip of Baja California. Now it seems close to Salt Lake City Utah. This last winter, in the Northern hemisphere; The Sea water freeze off Patagonia and frosts in Southern Brazil, when it sould have been Summer/Spring there.
Anyone can check the matter on 21 June by measuring the shadow cast by a vertical post. If the Shadow is cast Southward, You are South of the Tropic of Cancer at the current time. On December 21, the shadow will be cast to it's greatest length to the North depending on where You are.