World's Greatest Leaders

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In business, government, philanthropy and the arts, and all over the globe, these men and women are transforming the world and inspiring others to do the same. Read more about our fourth annual list here.
RANK NAME TITLE AFFILIATION
1 Theo Epstein President, Baseball Operations Chicago Cubs
2 Jack Ma Executive Chairman Alibaba Group
3 Pope Francis Head of the Roman Catholic Church -
4 Melinda Gates Cochair Bill & Melinda Gates Foundation
5 Jeff Bezos Founder and CEO Amazon
6 Ava DuVernay Film Director and Screenwriter -
7 H.R. McMaster U.S. National Security Adviser -
8 Tsai Ing-Wen President Taiwan
9 John McCain U.S Senator Arizona
10 Angela Merkel Chancellor Germany
11 LeBron James Small Forward Cleveland Cavaliers
12 John Kasich Governor Ohio
13 John Delaney U.S. Representative Maryland
14 Helle Thorning-Schmidt CEO Save the Children International
15 Katharine Hayhoe Director, Climate Science Center TexasTech
16 Bryan Stevenson Executive Director Equal Justice Initiative
17 Janet Yellen Chair Federal Reserve
18 Brian Chesky CEO and Head of Community Airbnb
19 Samantha Bee Host and Executive Producer "Full Frontal"
20 Paul Polman CEO Unilever
21 John Roberts Chief Justice U.S. Supreme Court
22 Janeé Harteau Chief of Police Minneapolis
23 Joe Biden Former U.S. Vice President -
24 Zhang Ruimin CEO Haier Group
25 Carmen Aristegui Host and Reporter Aristegui Noticias
26 Arundhati Bhattacharya Chairman State Bank of India
27 Shakira Singer, Songwriter, and Producer -
28 Raj Panjabi CEO Last Mile Health
29 Svetlana Gannushkina Founder Citizens Assistance Committee
30 Elon Musk CEO Tesla and SpaceX
31 Justin Trudeau Prime Minister Canada
32 Rebecca Richards-Kortum Professor Rice University
33 Strive Masiyiwa Chairman Econet Wireless Group
34 Tamika Mallory, Linda Sarsour, Bob Bland, and Carmen Perez National Cochairs The Women's March on Washington
35 Diana Natalicio President University of Texas at El Paso
36 Ohood Al Roumi Minister of Happiness United Arab Emirates
37 Fazle Abed CEO BRAC
38 Haruno Yoshida President BT Japan
39 Jamie Dimon CEO JPMorgan Chase
40 Yuri Milner Founder DST Global
41 Randall Stephenson Chairman and CEO AT&T
42 Chimamanda Ngozi Adichie Novelist and Essayist -
43 Marc Benioff CEO and Chairman Salesforce
44 Frank Mugisha Executive Director Sexual Minorities Uganda
45 Dalia Grybauskaitė President Lithuania
46 Chance the Rapper Musician and Activist -
47 Hu Shuli Editor-in-Chief Caixin Media
48 Sadiq Khan Mayor London
49 Carlos Rodriguez-Pastor CEO Intercorp
50 Lisa Su CEO Advanced Micro Devices
15

Katharine Hayhoe

Director, Climate Science Center, TexasTech
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President Barack Obama, right, arrives with actor Leonardo DiCaprio, left, and Dr. Katharine Hayhoe, to talk about climate change as part of the White House South by South Lawn event.
Carolyn Kaster—AP

Many lament that, in these politically charged and contentious times, Americans can’t even agree on science anymore. Indeed, attitudes toward climate change—whether, despite the abundance of evidence, it really exists—have widened with the nation’s polarization. Into this breach steps Hayhoe, a Canadian climate scientist who also happens to be an Evangelical Christian living in Texas; from this unique perch, and with the help of her PBS web series “Global Weirding,” she has become a friendly if unexpected force in spreading the science. Whether speaking to her digital audience, or with fellow parishioners, Hayhoe’s approach is patient and compassionate and modeled after conversations she had with her husband, a linguistics professor and pastor who once himself had doubts about climate change. Together, they wrote Climate for Change: Global Warming Facts for Faith-Based Decisions in 2009 (it’s being reissued this year), a book, in which, just as importantly, Hayhoe, an active and well-published leader in her field, came out to the scientific community as religious.

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