Our speaker for Monday, Dec. 6 will be Dr. Ben Santer. 
Ben Santer is an atmospheric scientist. He recently retired from Lawrence Livermore National Laboratory and is now a Visiting Researcher at UCLA’s Joint Institute for Regional Earth System Science & Engineering. He studies natural and human “fingerprints” in observed climate records. His early research contributed to the historic 1995 conclusion of the Intergovernmental Panel on Climate Change: “the balance of evidence suggests a discernible human influence on global climate”. He served as lead author of a key chapter of that report. Since 1995, Ben has identified human fingerprints in atmospheric temperature and water vapor, ocean heat content, sea surface temperature in hurricane formation regions, and many other climate variables.
His talk will look back at over 2 decades of efforts to identify human effects on global climate.