Regular Contributors

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Julia Kumari Drapkin

Julia Kumari Drapkin

Julia is the executive producer and creator of iSeeChange, an award winning environmental reporting project that combines citizen science, participatory public media, and cutting-edge satellite and sensor monitoring of environmental conditions.

A radio, television, and multimedia producer based in New Orleans, Julia has a passion for finding innovative ways to connect people to their environment and to each other. iSeeChange was born out of her seven-plus years of covering natural disasters and climate change science across the globe and in her own backyard.

Drapkin currently serves on the board of the National Federation of Community Broadcasters. She has worked as the Senior Science Reporter for The Nature Conservancy; as a foreign correspondent and radio reporter for PRI's The World and Global Post in South America; and as a photojournalist for the Associated Press in South Asia and for the St. Petersburg Times.

She was a National Science Foundation Polar Fellow in 2009 and a Metcalf Environmental Reporting Fellow for PRI's The World in 2007. Most recently she’s worked as multimedia reporter for the Times Picayune in New Orleans.

Prior to journalism, Julia did research anthropology and archaeology for more than seven years in Latin America, where she says she "geeked out" on Mayan farmers' almanacs.

Julia has an M.S. in new media and documentary film from Columbia University Graduate School of Journalism, a B.A. in research anthropology from Tulane University.

Bridgett Ennis

Bridgett Ennis

Bridgett is co-founder of ChavoBart Digital Media (CBDM), a production firm with a focus on scientific and environmental media. She has been involved in the editorial production of short-form scientific and environmental radio programs and podcasts for more than 14 years.

Prior to founding CBDM, Bridgett was a Vice President at Finger Lakes Productions International - a company which produced and distributed media to more than 600 radio stations during its 25 year history.

Bridgett worked directly with representatives from the Joint Ocean Commission Initiative, The Ocean Conservancy, the National Oceanic and Atmospheric Administration, the American Society for Microbiology and others to meet their outreach needs. She also managed the planning and launch of the Everglades Radio Network, which highlights the restoration efforts taking place in the Florida Everglades. As project manager for Our Ocean World and MicrobeWorld, Bridgett oversaw the writing, production, and distribution of these nationally-syndicated daily radio series.

Bridgett holds a B.S from Ithaca College, and a M.A. from SUNY Empire State College.

Daniel Grossman

Daniel Grossman, Ph.D.


Dan is an award-winning freelance print journalist and radio and web producer with more than 20 years of experience. He earned his B.S. in physics and his Ph.D. in political science, both from MIT.

Dan is a 2008 Alicia Patterson Foundation Fellow. He was awarded a Ted Scripps Fellowship in Environmental Journalism at the University of Colorado in Boulder, where he studied climate science. He has reported from all seven continents including from near both the south and north poles.

He has produced radio stories and documentaries on science and the environment for NPR’s Weekend Edition; for Public Radio International’s Living on Earth and its news magazine, The World; for the Australian Broadcasting Corporation; for Germany’s Deutsche Welle radio; for the BBC, the Canadian Broadcasting Corporation, and Radio Netherlands; and for the documentary show Soundprint and other broadcast outlets.

Dan has written for the New York Times, Boston Globe, Discover, Audubon, Scientific American and other national publications. He has produced three extensive micro-websites on environmental topics. He is author of Deep Water: As Polar Ice Melts, Scientists Debate How High Our Oceans Will Rise (Ted Books: 2012) and co-author of A Scientist’s Guide to Talking with the Media: Practical Advice from the Union of Concerned Scientists (Rutgers University Press: 2006).

Samantha Harrington

Samantha Harrington


Samantha is a journalist from Madison, Wisconsin​,​ with a background in digital media and entrepreneurship. ​"Sam"​ is ​especially interested in sharing how climate change is affecting ​​people, animals, the ecology, and the economy across the U.S. Midwest.

She has ​reported and written for Yale Climate Connections since 2016. ​ She also writes and does graphic design for feature stories about climate change through a partnership between Y​ale ​C​limate ​C​onnections​ and iSeeChange. 

​Samantha​ is a regular contributor to Women@Forbes​,​ where she writes about women in business. In 2015, after graduating from the University of North Carolina​,​ where she studied Journalism and Arab Cultures, she founded Driven Media, a roving girl-power newsroom.

She has also worked on a number of international projects. In 2014 she traveled to Amman, Jordan​,​ to study why Jordanian women study STEM subjects at ​twic​e the rate of American women, and ​she ​has reported on maternal health issues in Malawi and on counter terrorism efforts in Morocco.

Zeke Hausfather

Zeke Hausfather


Zeke is an energy systems analyst and environmental economist with a strong interest in conservation and efficiency. He was previously the chief scientist at C3, an energy management and efficiency company, and he co-founded Efficiency 2.0, a behavior-based energy efficiency company.

Zeke received a bachelor's degree from Grinnell College, a master's degree in environmental science from Nrije Universiteit in the Netherlands, and a master's degree in environmental management from the Yale School of Forestry and Environmental Studies, Yale University. He has published numerous papers and reports in the fields of environmental economics, energy modeling, and climate science. Zeke, who now lives in San Francisco, has been a regular contributor to Yale Climate Connections and its predecessor site since its launch in the fall of 2007.

Erika Street Hopman

Erika Street Hopman

Erika is co-founder of ChavoBart Digital Media, Inc., a production firm with a focus on scientific and environmental media. A writer and independent producer, she has diverse experience that includes work in video, radio, and print.

Before founding CBDM, Erika served as a project manager at Finger Lakes Productions International, where she oversaw the writing, production, and distribution of the nationally-syndicated radio series The EnvironMinute and Animal Instincts. She also managed the ongoing production of the Everglades Radio Network, which highlights the restoration efforts taking place in the Florida Everglades.

An independent documentary filmmaker, Erika's work has been shown internationally at film festivals and broadcast on outlets such as LinkTV and AlJazeera English.

She is passionate about environmental issues and has volunteered for the US Fish and Wildlife Service, served on the board of the Friends of the Montezuma Wetlands Complex, and is a member of the steering committee for her local community garden.

Erika holds a BA in Biology from Cornell University and an MFA in film production from Boston University.

Sarah Kennedy

Sarah Kennedy

Sarah is a Philadelphia-based writer. She has degrees from Harvard University and Rutgers University-Camden and has worked as a lexicographer, waitress, bartender, medical writer, teacher, and amusement park ride operator. She is driven by a deep curiosity about people, their personal stories, and their singular voices.

As an editor and content producer with ChavoBart Digital Media (CBDM), Sarah writes and edits scripts and conducts interviews for Climate Connections as well as CurrentCast, a syndicated radio program about water issues in the Great Lakes.

Previously, she worked as managing editor of Wordsmyth, a dictionary company developing language-learning resources for K-12 education and ESL learners. There, she managed projects for clients including McGraw Hill, Scholastic, and Leapfrog.

In 2012, she left Wordsmyth to pursue her own writing more intensively. She earned an MFA in nonfiction from Rutgers University-Camden, where she subsequently taught undergraduate composition and creative writing courses.

Sarah's essays and articles have been published in Post Road, Chautauqua Literary Journal, Under the Sun, Hidden City Philadelphia, Fodor's Oregon, and elsewhere.

Jeffrey T. Kiehl, PhD

Jeffrey Kiehl, PhD

Jeff is an adjunct professor at the University of California, Santa Cruz, in the Department of Earth & Planetary Science, and an adjunct faculty member of Pacifica Graduate Institute, where he teaches a course on ecopsychology.

For nearly 40 years Jeff conducted research on climate science at the National Center for Atmospheric Research, NCAR, in Boulder, Colorado. He has published more than 140 studies on issues such as the effects of trace gases on the climate; the role of clouds and aerosols on the climate system; climate feedbacks and Earth’s climate sensitivity, and simulations of deep-past Earth climates.

With a PhD in atmospheric science from the State University of New York, Albany, Jeff also holds advanced degrees in clinical psychology, and he is certified as a senior training analyst in analytical psychology. He is co-editor of Frontiers of Climate Modeling and author of Facing Climate Change: An Integrated Path to the Future, published by Columbia University Press in 2016 and providing a psychological perspective on climate change. He is a Fellow of the American Geophysical Union (AGU) and of the American Meteorological Society (AMS) and the 2012 recipient of AGU’s Climate Communication Prize.

Karin Kirk

Karin Kirk


Karin is a geologist and freelance writer with a background in climate education. While she's a scientist by training, she's particularly intrigued by the intersection of science and the human dimension. Her recent projects investigate the public discourse around climate change.

Karin has worked in many facets of climate change, beginning with undergraduate and graduate studies in paleoclimatology and anthropogenic influences on the climate system. Her climate-focused work includes teaching in the classroom, designing curriculum, and leading faculty workshops to strengthen teaching about climate and energy. Recently, she has migrated her efforts from the classroom to the general public, via her TEDx talk and writing for Yale Climate Connections, EARTH magazine, and other venues.

In addition to her writing work, Karin is part of CLEAN, a NOAA-sponsored project to improve teaching about climate and energy. She also worked with NOAA's Climate Program Office to evaluate the effectiveness of the website. Previously, she worked for the Science Education Resource Center at Carleton College, among a large team of educators and academics who share a common mission to improve science teaching practices. 
Karin holds a B.A. in geology from Skidmore College and an M.S. in geology from Montana State University. She lives in Bozeman, MT where she also works as a professional ski instructor and guide.

Bruce Lieberman

Bruce Lieberman


Bruce is a longtime journalist who has covered climate change science, policy and politics for more than a decade. A newspaper reporter for 20 years, Bruce worked for the former San Diego Union-Tribune and other newspapers before becoming a freelance writer and editor in 2010. He covers a variety of topics related to science, the environment, and business.

Bruce has been a regular contributor to Yale Climate Connections since its predecessor, The Yale Forum on Climate Change and The Media, launched in 2007. He has written about climate change rhetoric in national politics; media experiments to elevate reporting on climate change; the future of nuclear energy; Department of Defense concerns about climate change as a national security issue; California’s efforts to reduce in-state greenhouse gas emissions; that state’s struggles with declining snowpack, drought and wildfire; and the Catholic Church’s efforts to raise awareness about climate change – among many other topics. In recent years, he has regularly filed dispatches on climate change from the annual American Geophysical Union (AGU) fall meeting in San Francisco.

In addition to his work for Yale Climate Connections, Bruce has written for Air & Space Magazine, Scientific American, Nature and other media outlets, and also for academic research institutions and private foundations. Bruce holds an M.S. from Columbia University’s Graduate School of Journalism and a B.A. from the University of California, Berkeley . He lives in Carlsbad, California, near San Diego.

Diana Madson

Diana Madson


Diana has been a Yale Climate Connections correspondent since April 2014, while she was still in graduate school. She points to a strong interest in sharing stories of Americans' experiences with climate change.

In addition to her freelance writing work , Diana leads a number of climate projects. She is the Founder and Executive Director of the Mountain Pact, an effort to inform and mobilize mountain towns across the western U.S. about federal policies affecting their communities, particularly as they relate to climate change. Diana also leads the Sierra Climate Adaptation & Mitigation Partnership (Sierra CAMP) at Sierra Business Council, a collaborative effort designed to support vibrant communities and a resilient environment and improve quality of life in the Sierra Nevada. In 2014, as a graduate student, Diana was the Founder and Director of Yale University’s Team Climate, a climate change media campaign that partnered with 16 Olympians at Sochi to reach more than 315 million people with the message that climate change is compromising winter sports.

Diana received her Masters degree in Environmental Management from the Yale School of Forestry & Environmental Studies and her B.S. in Society & Environment and B.A. in Rhetoric from the University of California, Berkeley

Raised in Northern California, Diana spent much of her life in the Sierra Nevada mountains, a landscape that she says inspired her focus on environmental issues throughout her education and career.

Dana Nuccitelli

Dana Nuccitelli


Dana is an environmental scientist, writer, and author of 'Climatology versus Pseudoscience,' published in 2015. He has published 10 peer-reviewed studies related to climate change and has been writing about the subject since 2010 for outlets including Skeptical Science and The Guardian.

Dana received a bachelor's degree in astrophysics from UC Berkeley and a master's degree in physics from UC Davis before becoming an environmental scientist. He says he was inspired after seeing 'An Inconvenient Truth' in 2006 to find out if the science presented in the film was accurate. He devoted several years to reading books, articles, and peer-reviewed studies about climate change.

In 2010, Dana began contributing to the climate blog and myth debunking website Skeptical Science, from which The Guardian picked up several of his timely debunkings of climate myths perpetuated by influential individuals and interest groups. In early 2013, he joined with John Abraham of St. Thomas University in St. Paul, Mn., on the Guardian’s new international environmental blogging network. From then through most of 2018, he co-published with Abraham on a weekly basis until the blog network was discontinued in late 2018. Dana has also published several climate-related studies, most notably on the 97 percent expert “consensus” among climate scientists that humans are primarily responsible for the observed global warming since 1950.

Daisy Simmons

Daisy Simmons


Daisy is a freelance writer and editor with more than 15 years of experience in research-driven storytelling. In addition to contributing to Yale Climate Connections since early 2016, she also writes and edits for CurrentCast, a syndicated daily radio series devoted to Great Lakes water issues.

Previously, Daisy served as Editorial Director for EcoMyths Alliance, a nonprofit that partnered with scientists to make environmental issues accessible and empowering to a general audience. In addition to overall content development, she was responsible for co-producing monthly myth-busting segments for Chicago Public Media, and editing an environmental science curriculum in partnership with the National Wildlife Federation. She has also served as a Chicago-based editor for Disney’s Ideal Bite and NBC/Universal Chicago.

Now based in the foothills of Northern California's Sierra Nevada mountains, Daisy is committed to applying her B.A. in Creative Writing from Colorado College to creatively, and credibly, write about new ways forward in confronting today's environmental challenges.

Peter Sinclair

Peter Sinclair


Peter is an award winning freelance graphic artist, animator, and videographer, specializing in climate change and renewable energy issues.

Peter has created hundreds of educational videos aimed at challenging climate science misinformation and disinformation efforts, including his independent "Climate Denial Crock of the Week" series, and the Yale Climate Connections monthly "This is Not Cool" videos, which he has been producing since April 2014. The videos are being used in university-level programs nationally and internationally, and they have established Peter as a frequent presenter on the topic of climate change communication.

A graduate of the University of Michigan, Peter is based in Midland, MI.

Michael Svoboda

Michael Svoboda, Ph.D.

Michael is assistant professor of writing at The George Washington University in Washington, D.C., where he has taught since 2005. Prior to completing his interdisciplinary Ph.D. at Penn State in 2002, Michael was the majority owner and senior manager of Svoboda's Books, an independent bookstore that served Penn State's University Park campus from 1983 to 2000.

While operating the bookstore, Michael periodically served as a community columnist and book reviewer for The Centre Daily Times, and he also produced and hosted Libri, The Radio Book Revue, a weekly one-hour book program, for WPSU, the NPR affiliate owned and operated by Penn State.

Over the six-year run of the program, he interviewed some 200 authors, including numerous leading nature/environment writers. An avid consumer of climate change-related reports, articles, and literature, Michael has published articles, book reviews, and review essays on ancient rhetoric and philosophy, rhetoric and composition, and environmental communication.

John Wihbey

John Wihbey


John, a writer, educator, and researcher, is an assistant professor of journalism at Northeastern University and a correspondent for Boston Globe Ideas. Previously, he was an assistant director at Harvard University's Shorenstein Center, where he managed Journalist's, a project bridging the gap between the academic and media worlds.

He served as an instructor at Boston University, following work as a producer and digital media editor for the NPR-syndicated show "On Point with Tom Ashbrook," from WBUR-Boston.

A Columbia University Graduate School of Journalism alumnus, he has also reported on environmental issues for the Star-Ledger (N.J.). He lives in the Boston area.