On account of temperature measurements. The most reliable being those of ocean temperature at various depths.
No, the ice melting in the Artic is evidence of changes in the axial tilt of the earth that goes in a 38 year short-term cycle. Ever notice that both the sea and land ice are INCREASING in the Antarctic.
So the axial tilt is causing the warming. Which "implies" there IS warming. We've been through the Antarctic bit, the ice is not increasing there.
Yes, as outlined by articles, raw data, photos and all the other evidence - ice is INCREASING in the Antarctic. You may deny it - but that simply makes you a climate truth denier. There is no man-made global warming. The earth goes through natural periods of warming and cooling - as it has for thousands of years.
You may deny that Antarctic ice is decreasing, but that simply makes you a climate truth denier. But there is warming, which is why I made the reply that I did to piezoe. Melting ice makes a fairly "compelling" case of its own. ; )
that you are a communist is obvious. whether you are an evil communist let's leave it for another day.
Despite the temp readings and lack of continued warming? Take an ice cube out of the freezer. It takes time to melt. Put the water back in the freezer. It takes time to freeze again.