 This figure is from the Berkeley Earth Project. It was run primarily by physicists who did not start out as climate scientists with an interesting mix of funding from public sources, but also some of it came from private sources, including those with ties to the fossil fuel industry. It's looking at the thermometer record of temperature and just looking at the land. Now, if you go back to 1750 and up through about 1850, you can see that the uncertainties are really huge. So we're mostly going to focus since 1850. Many groups have been estimating the temperature, including NASA, the Goddard Institute for Space Studies, NOAA, the National Climate Data Center, the British Group, the Hadley Center and the Climate Research Unit. And what you can see is those plus the Berkeley Earth estimates up here on top. And what you'll notice is that the uncertainties in the Berkeley Earth are similar to the differences between the others, which also have their own uncertainties. But you'll see very clearly that there is a strong warming going on. The different groups have used different techniques, although ultimately they're all using thermometers, whether they use them all or not, is different for the different ones. But when you have different groups with different funding, different motivations perhaps, and some working in different places, they all give the same answer, which is it is getting warmer. We have very high confidence that it is warming.