eCHEM 1A: Online General Chemistry College of Chemistry, University of California, Berkeley http://chemistry.berkeley.edu/echem1a Curriculum and ChemQuizzes developed by Dr. Mark Kubinec and Professor Alexander Pines Chemical Demonstrations by Lonnie Martin Video Production by Jon Schainker and Scott Vento Developed with the support of The Camille & Henry Dreyfus Foundation

Paulina Oliva (UC Santa Barbara) spoke about a project in Chipata, Zambia, investigating the effectiveness of economic incentives (payment for ecosystem services, or PES) for farmers to plant environmentally-beneficial trees in the presence of uncertainty and limited liability. She found that economic incentives are effective at encouraging adoption, but there was variation in performance in terms of tree survival. Furthermore, the potentially large value of PES to farmers' income sources may come at the expense of program performance. This research is informing the design of large-scale public- and private-sector efforts to plant the beneficial trees.