The climate has been changing since the beginning of time,
we have had ice-ages and warmings,have deserts that were once forests and vice versa,rivers have dried up,new ones have formed etc etc man has moved around the earth chasing better climates for however long in past,we can't because of our attachment to materialism.
We also have haarp playing there games,which has who knows what effects on our weather,seas,land and atmosphere.
Volcanoes put out more co2 than humans do.
Different star and planet alignments affect things too.
stay safe,stay warm