Earth's Temp at 400 Year High?

One of the most rancid stinking pieces of garbage, which is being spewed as fact, is that Earth has reached a high temperature the likes not seen in 400 years. I just can not believe that these pseudo scientists actually talk this kind of garbage. They should all lose their so called degrees and be handed a shovel since they do know how to BS. Temperatures have only been recorded on EARTH by us for the last 100 years max. No weather expert can tell us what the temperature will be in 7 days let alone what it was 400 years ago. These mental midgets over at AP should stick to reviewing movies. The article even goes on to say that the scientists agree that temps are too high. So? Who really cares what a bunch of pinheads think. I want proof. Not one of them can garner a single solid piece of proof. It is all alarmist BS. The Earth goes through cycles of temperature rise and decrease, and has been around for over 4 BILLION years. How in the heck do we even pretend to know how the temperatures can fluctuate over hundreds of years. If there is one contributing factor to heat rise or decrease, it must be the Sun! Sun activity doesn't even get factored into this "science". Incredible!