Need at-a-glance visual evidence of that "scientific consensus on climate change" we keep talking about? Skeptical Science has put together an interactive visualization of 4,000 peer-reviewed climate science papers. You can drag the year slider around to see how research changes over time.
And it gets even more interactive! The site also lets you see information about the papers, or in some cases the papers themselves — here's the first one indexed, from 1836. Plus, you can contribute to making the crowd-sourced project more comprehensive by adding links to papers you encounter. (The whole thing is still in development, and Skeptical Science seems to be taking seriously questions about how the data can be best presented, and whether there's a better method for distinguishing between skeptical, neutral, and pro sources. So http://www.skepticalscience.com/Interactive-History-of-Climate-Science.htmlif you have feedback.)
An Interactive History of Climate Science, Skeptical Science.