Prof. Jim Randerson is a leading U.S. expert on human impacts on biogeochemical cycles, with particular empasis on climate and wildfires. A good summary of his research activities can be found here: https://sites.uci.edu/randersonlab/media/.
Jim’s lab website: https://sites.uci.edu/randersonlab/.
If you would like to connect with Jim, his email address is jranders@uci.edu. You can also send me a note at bpbell@uci.edu and I’ll help expedite the process. –Brian Bell, UCI