Assistant Professor of Environmental Science
W.M. Keck Science Department
Claremont McKenna - Pitzer - Scripps Colleges
925 N. Mills Ave
Claremont, California 91711

bwilliams at

Please note that this site is under construction. 

My research works to understand mechanisms driving natural variability in chemical, biological, and physical oceanography, along with the response of the ocean to anthropogenic climate change.  I use geochemical and sclerochronological techniques to generate environmental reconstructions from marine proxy archives to address these issues. 


4/7/14 see press for the Water Scarcity and Solutions conference here: and video of the talks here: 

4/3/14 Our paper calibrating coralline algae Mg/Ca to sea surface temperatures will be published in the journal Geochimica et Cosmochimica Acta. 

4/2/14 Congratulations to Sarah Barnes or her Scripps Environmental Research grant award. She will be measuring stable isotopes in proteinaceous corals from the southern Line Islands.

3/12/14 The Keck Science Dept and the CMC Athenaeum are hosting Dr. Ben Santer for seminars this week.

3/6/14 Congratulations to Jessica Ng on her Scripps Environmental Research grant award. She will be working to reduce the subannual dating uncertainty in reconstructions of temperature from coralline algae.

3/1/14 Branwen is presenting at the Water Scarcity and Solutions conference ( 

2/24/14 Ocean Science Meeting in Honolulu! Branwen is presenting at the Ocean Sciences meeting ( and co-chairing a session ( 

11/12/2013 Congratulations to Sasha Ponomareva for her presentation of thesis research at the Western Society of Naturalists Annual Meeting. You can see her discuss her research here: