What are the 4 sources of climate change evidence?

Loss of arctic ice, hurricanes and more occurring storms, snow in places it doesn’t snow/ rain in places it doesn’t rain, droughts and floods, it has to always snow on Christmas now in the areas that expect snow during Christmas sometimes they don’t get it (Canada, Russia some parts of the USA, Australia and more)

Answerhurricanes;

"the socialist system that had been in place had brought economic ruin to the country." i hope this !