With all the talk about global warming I wanted to take a look at the raw data. You can actually download it from the internet these days. The data I am looking at is from ice core samples drilled out of glaciers. This is called proxy data because there are not actual thermometers buried in the ice. But there is stuff in there that scientists can use to estimate how hot or cold a certain year may have been. Is this accurate? Who knows? I’m sure the technicians are doing their best though, so this is the best we have got to work with.