I am sure this must be global warming! What do you think?

What's the winter been like in the USA, Canada and Russia?
In Moscow there was a cold period in January and February, March was cold too, while December and the beginning of January were like you described. I don't think it's a global warming. I'm not sure whether this warming is really going on, and climate changes are caused by natural processes.
Lampada, it must be как ни крути.