Sophia Kianni is an Iranian-American environmentalist studying climate science and public policy at Stanford University. She is the founder and executive director of Climate Cardinals, an international nonprofit with 8,000 volunteers in 40+ countries working to translate climate information into over 100 languages. She represents the U.S as the youngest member on the inaugural United Nations Youth Advisory Group on Climate Change. Sophia’s work has been featured in news outlets including Forbes, CNN, Business Insider, BBC, NPR, ELLE, TIME Magazine, The Guardian, NBC, and even on the front page of The Washington Post. She was previously a fellow with PBS NewsHour and has written for news outlets such as MTV News, Cosmopolitan, Refinery 29, and Teen Vogue. She is a prolific public speaker and has spoken at universities across the country including Columbia University, UC Berkeley, Johns Hopkins, Cambridge University, and Harvard University. She gave her debut TED Talk as the closing speaker at the inaugural TED Countdown Conference. She has been named VICE Media's youngest Human of the Year, a National Geographic Young Explorer, and one of Teen Vogue's 21 under 21.

Sandra Taylor is CEO of Sustainable Business International LLC, a consulting business that assists clients at various stages of environmental sustainability and corporate social responsibility in the food and beverage sectors. Previously Sandra was a senior executive with Starbucks Coffee Company in Seattle, where she led global responsibility and sustainability in coffee and cocoa supply chains. She is the author of The Business of Sustainable Wine, published in July 2017. Sandra received her BA from Colorado Women’s college, JD from Boston University School of Law and MBA program from the Bordeaux School of Management/Kedge Business School in France.

With more than a decade working at the heart of the technology industry, Dex Hunter-Torricke has managed communications for some of the most-influential and admired Silicon Valley leaders and corporations of our day. In his daily work, Dex plays a critical role in writing the next chapter on science, tech, the economy, and society across the globe, and spearheads efforts to bring the stories of how the world is being moved forward to light. From 2012-2016, he led the executive communications team at Facebook and served as personal speechwriter for Mark Zuckerberg. He then went on to join SpaceX as senior director of communications. He later served as the VP Global Communications & Public Engagement for the Oversight Board for Meta, the independent body that makes decisions on Facebook and Instagram’s most challenging content issues. Dex takes audiences into Facebook’s boardroom, Musk’s open-concept cubicle, the famed Googleplex, and finally to the UN itself to share lessons on what it takes in today’s environment to build highly effective internal teams, how to use storytelling in modern communications, and what to make of the steady transition from local to global that’s unfolded over the past decade.

Trevor Williams served as Chief Economist at Lloyds Bank for over a decade. Now an author, academic and consultant, he analyses the key trends and policies that shape the economy and markets. From energy and climate to how companies use their data to understand the wider economy, he brings clarity and relevance to an often complex and abstract field.

Anthony Foxx is the Chief Policy Officer at Lyft who formerly served as the 17th United States Secretary of Transportation and as mayor of Charlotte, North Carolina. As Secretary of Transportation, he led an agency with more than 55,000 employees and a budget of $70 billion. A digital cities innovator known as "the Great Connector" for his work in government, he discusses the American transportation system, digital cities, innovation, and coalition building.

Ramez Naam is a former Microsoft executive, entrepreneur, inventor, and the Energy Co-Chair at Singularity University. Ramez spent 13 years at Microsoft, where he led teams working on artificial intelligence, big data, and internet search. His software has touched the lives of more than a billion people. He holds more than 20 patents—including several as co-inventor with Bill Gates. Dynamic and personable, Naam speaks around the world, captivating audiences as he illustrates “what disruption looks like” and shares the eight strategies incumbents should draw on to keep the pace of change.

He is Chairman and CEO of Sindicatum Renewable Energy, a clean energy company headquartered in Singapore financing, building and operating renewable energy projects in India, Thailand, Indonesia and the Philippines. With his hands-on experience in clean energy combined with his other roles, Assaad is a high-profile thought leader on climate change, clean energy and the UN climate talks with more than 130,000 followers on Twitter, 100,000 on Facebook, 135,000 on LinkedIn and widely-read newspaper columns.