Greg Dalton founded Climate One at The Commonwealth Club in 2007 after traveling to the Arctic aboard a Russian ice breaker with climate scientists and journalists. Today, Climate One produces a weekly radio show broadcast on public stations in California and around the country, in addition to a rapidly growing weekly podcast. Climate One is the only regular talk show that engages high-level leaders from business, policy, advocacy, and academic circles in a conversation about building resilient communities, sustainable economies, and a healthier future. Previously, Dalton was a journalist for 12 years covering news in Beijing, Vancouver, New York, and San Francisco for the Associated Press, South China Morning Post, McNeil-Lehrer News Hour, and Industry Standard magazine.

Follow Greg @climateone.

Biography coming soon.

Follow Roald @lapperre.

Beth A. Brooke-Marciniak serves on the Boards of eHealth, Inc, a public company that provides a leading private online health insurance marketplace and services to health insurance exchanges, and SHEEX, Inc., a private company that has transformed the bedding industry by creating bedding made of high-performance athletic fabrics. She retired as the Global Vice-Chair, Public Policy at EY and a member of the firm’s Global Executive Board. Brooke-Marciniak had public policy responsibility for the firm’s operations in over 150 countries and was the global sponsor for EY’s Diversity and Inclusiveness efforts. She is a prominent voice around the world on Diversity and Inclusion, most prominently on LGBT inclusion and women. She has been named 11 times to the Forbes’ World’s Most Powerful Women list. In 2017, Brooke-Marciniak received the Theodore Roosevelt Award, the top individual honor bestowed by the US National Collegiate Athletic Association (NCAA) and has also been inducted into the Indiana Basketball Hall of Fame. During the Clinton administration, she worked in the US Department of the Treasury, where she was responsible for all tax policy matters related to insurance and managed care. She played important roles in the healthcare reform and Superfund reform efforts.

Follow Beth @BethBrooke_EY.

Simone Niven was appointed Corporate Relations Group executive in January 2017. She joined Rio Tinto in 2008 and has accountability for the Group’s reputation and corporate relations areas: external affairs, communities, media, brand, reputation, and employee communications. She also has responsibility for the leadership of the country and regional office teams including Africa, Australia, Canada, China, the European Union, India, Japan, the U.K., and the U.S. Prior to joining Rio Tinto, Niven spent over 15 years working in senior roles at some of the world’s largest companies across many continents, including Vodafone, the United Technologies group, Smiths Group plc, and Smith & Nephew plc in a range of corporate relations fields.

Follow Simone @RioTinto.