![Daniel Kammen, Science envoy to US secretary of state John Kerry on the Beyond Coal report - YouTube Daniel Kammen, Science envoy to US secretary of state John Kerry on the Beyond Coal report - YouTube](https://i.ytimg.com/vi/ip9uGNkkyB4/maxresdefault.jpg)
Daniel Kammen, Science envoy to US secretary of state John Kerry on the Beyond Coal report - YouTube
![Daniel Kammen | Faculty & Affiliated Academics | Research and Impact | Goldman School of Public Policy | University of California, Berkeley Daniel Kammen | Faculty & Affiliated Academics | Research and Impact | Goldman School of Public Policy | University of California, Berkeley](https://gspp.berkeley.edu/respimg/assets/uploads/faculty/photos/_small/daniel_kammen_NEW_WEB.png--80.jpg)
Daniel Kammen | Faculty & Affiliated Academics | Research and Impact | Goldman School of Public Policy | University of California, Berkeley
![UC Berkeley energy and climate expert Daniel Kammen stands outside his home in Oakland, Calif., on Saturday, Jan. 17, 2009. (Paul Chinn/San Francisco Chronicle via AP Stock Photo - Alamy UC Berkeley energy and climate expert Daniel Kammen stands outside his home in Oakland, Calif., on Saturday, Jan. 17, 2009. (Paul Chinn/San Francisco Chronicle via AP Stock Photo - Alamy](https://l450v.alamy.com/450v/2r61hbm/uc-berkeley-energy-and-climate-expert-daniel-kammen-stands-outside-his-home-in-oakland-calif-on-saturday-jan-17-2009-paul-chinnsan-francisco-chronicle-via-ap-2r61hbm.jpg)
UC Berkeley energy and climate expert Daniel Kammen stands outside his home in Oakland, Calif., on Saturday, Jan. 17, 2009. (Paul Chinn/San Francisco Chronicle via AP Stock Photo - Alamy
![Science envoy resigns over Trump – with a letter spelling out 'impeach' | Donald Trump | The Guardian Science envoy resigns over Trump – with a letter spelling out 'impeach' | Donald Trump | The Guardian](https://i.guim.co.uk/img/media/ea8de4f0f3d9fe9d2ab328af66d4927470856348/0_245_5568_3341/master/5568.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=e02ca8965e41b34889480b794d1ac88d)