President Carlos Alvarado Quesada

*Exclusive with AEI Speakers* 48th President of the Republic of Costa Rica

Ambassador Rodrigo Carazo

*Exclusive with AEI Speakers* Ambassador, Permanent Representative of Costa Rica to the United Nations in New York (2018-June 2022)

Amy Myers Jaffe

Energy consultant, Leading expert on the geopolitics of oil, energy, security and risk, Influential thought leader on global energy policy and sustainability

Sophia Kianni

Climate Activist, Youngest member of the inaugural United Nations Youth Advisory Group on Climate Change, one of Teen Vogue’s 21 under 21

Shelton Johnson

Yosemite National Park Service ranger and author of Gloryland

Vishaan Chakrabarti

Architect, educator, and author, Chakrabarti designs and advocates for an ecological and equitable urban future centered on human connectedness

Rick Steves

Host of the public television series, Rick Steves‘ Europe, and author of 22 European travel books

Daniel Yergin

Pulitzer Prize winning author, business leader, media personality and a director of the Council on Foreign Relations

Robert Swan

The first person in history to walk to both the North and South Poles

Tyrone Hayes

Tyrone Hayes was born and raised in Columbia, South Carolina. Encouraged by his parents (Romeo

Pat Wood

Pat Wood, III Principal, Wood3 Resources Energy infrastructure developer Pat Wood, III has a long

Dr. Robert Ballard

National Geographic Society Explorer

Jake Cohn

PROFESSIONAL FREESKIER LIVING WITH SEVERE ASTHMA

Brian Skerry

Contract photographer for National Geographic Magazine specializing in marine wildlife and underwater environments

Dr. Bjorn Lomborg

Author of the bestseller “The Skeptical Environmentalist” & “Cool It”, founder of one of the “Top 25 Environmental Think Tanks”

Adam Werbach

Youngest-ever President of the Sierra Club, frequent commentator on sustainable business who was twice elected to the International Board of Greenpeace

Ed McMahon

Leading Authority on Economic Development and Land Use Polices and Trends

Bill Nye the Science Guy

Best Selling Author, TV Host and Scientist

Jeremy Rifkin

Author of over 20 bestselling books about the impact of scientific and technological changes on the economy, the workforce, society, and the environment

Jamais Cascio

Selected by Foreign Policy magazine as one of their Top 100 Global Thinkers, Jamais Cascio

Gregg Treinish

Gregg Treinish founded Adventurers and Scientists for Conservation in 2011, with a strong passion for

David Breashears

Mount Everest expedition leader

Paul Tukey

Paul Tukey, 49, is an American journalist, author, filmmaker and motivational public speaker, who has

Roger Ballentine

Roger Ballentine is the Founder and President of Green Strategies Inc., a strategic environmental and

Winona LaDuke

Winona LaDuke is an internationally renowned activist working on issues of sustainable development renewable energy

Ed Begley Jr.

Inspired by the works of his Academy Award-winning father, Ed Begley Jr. became an actor.

Denis Hayes

National Coordinator of the first Earth Day and former director of the federal National Renewable Energy Laboratory

Alfred Runte

An internationally recognized expert on national parks and railroads, Alfred Runte is based in Seattle,

Majora Carter

Urban revitalization strategy consultant, real estate developer, MacArthur Fellow, Peabody Award–winning broadcaster, leader in environmental justice solutions

Peter Brown

Peter Jay Brown is a director and cinematographer, who specializes in real life stories, cultural

Bob Vila

Home Improvement Expert; Former Host of “This Old House” and “Bob Vila’s Home Again,” Among

John Englander

John Englander is an oceanographer, consultant and author. He has witnessed first hand the impacts