If you've never heard of the Medieval Warm Period, then shame on you. You weren't paying attention in school. This event occurred between 950 and 1250 AD. Now, back in those days we didn't have Channel 13's Meteorologist with his bright shiny teeth and his slicked back hair waving his hand over a computer generated map supplied to him by satellites. Plus, written records in those days are scarce to come by in these days, especially when it's just talking about the weather. Botanical studies, along with archeological finds that revealed abrupt and sustained diet changes among humans and animals, helped to determine conclusively that there was a warming period on Earth that lasted approximately three centuries. We also know that carbon fuel emissions from Hummer's and SUV's didn't cause it. Don't we? Let's hope so. If you go to 'Medieval Warm Period' on Wikipedia, you'll get a big laugh at the second paragraph. In that section, the writer speaks of how much the temperature went off the reservation of normality, and states conclusively that the highest temperatures during the Medieval Warm Period were not as warm as what we are experiencing now. Yet, the writer starts the paragraph off by saying, and I quote..."Despite substantial uncertainties....". WHAT? If there are substantial uncertainties in your data then you CANNOT unequivocally say that the temperatures of today are much warmer than back then. Scientists. You gotta love 'em. Of course, we don't know if a scientist wrote that or not. We have, however, proven he's a moron.
Right after the Medieval Warm Period, was the Little Ice Age. Please tell me you know about that. Yes, not long after the warm period there was a cold period that is referred to as the Little Ice Age. Temperatures were much cooler for several centuries, right up to around 1850. What's funny about this is where our brilliant scientists are as concerns what may have caused it. Pay attention. You're about to get an education.
The Little Ice Age, according to our 'experts', was potentially caused by...(drum roll)....
They don't know. It could have been caused by orbital cycles or decreased solar activity or increased volcanic activity or altered current flows or the inherent variability of global climate or reforestation following decreases in the human population or WHO THE HELL FREAKIN' KNOWS???!!!
Don't you see the same rule applies here? At this time? On this date? They...don't...know. They will never know. What we DO know is that WE ain't causin' it. Notice one of the causes above? It says, 'the inherent variability of global climate...'. Well I'll be. The inherent variability of global climate. Bingo. They hit the nail on the head and weren't even tryin'. I salute them.