The Hockey Stick chart clearly shows the rapid heating that the planet has experienced, which is caused by CO2 emissions. The more CO2 that goes into the air, the hotter the planet has become.
Unfortuantly for the creater of the hockey stick and those who believe this, it's now come out that they not only fudged the numbers to make it look like it's warming, when it's not, but the had to eliminate the actual temps from the first 400 years of the last century. A period known as the Mideval Warming Period. A time when wine grapes grew in Scottland and farmers grew crops in Greenland. A time that was much, MUCH warmer then even the inflated, and fabricated extreme temps on the last couple decades.
NASA has had to change their date for the hottest decade in the last century. They were caught lying about their data and quietly made the late 1930's as the hottest decade. As you can see in the graph, it was warmer back then, before the invention of CO2. hahaha
That is also when the famous drought and dust bowl years happened that became such a contributing factor to the Depression and WWII. It's also when the worst Hurricanes happend.
What I really find interesting is that when it was so much hotter in the Mideval Warming Period, human life flourished and we made HUGE advancements. The glaciers didn't melt and the oceans didn't cover the contenents. And to the best of my knowledge, the Polar Bears didn't go extinct back then either !!!!!!!!!!! hahahaha
Eddie