The mission of “Global Climate Change: Vital Signs of the Planet” is to provide the public with accurate and timely news and information about Earth’s changing climate, along with current data and visualizations, presented from the unique perspective of NASA, one of the world’s leading climate research agencies.


  • Carmen Boening, Deputy Section Manager of JPL's Earth Science Section
    Dr. Carmen Boening, Deputy Section Manager of JPL's Earth Science Section

    Dr. Carmen Boening has a Ph.D. in Physics and Engineering from the University of Bremen, Germany. In addition to serving as the Jet Propulsion Laboratory's Earth Science Section deputy, she is involved in the Gravity Recovery And Climate Experiment (GRACE) mission and its follow-on project, GRACE-FO. She's also the principal investigator for NASA's Sea Level Change Portal. Her research interests include the complex processes behind sea level rise, involving interactions between the ocean, atmosphere, land hydrology, and land ice.

  • Nadya Vinogradova Shiffer, Director of NASA's Ocean Physics Program
    Dr. Nadya Vinogradova Shiffer, Director of NASA's Ocean Physics Program

    Dr. Nadya Vinogradova Shiffer directs NASA’s Ocean Physics Program and is a program scientist on all NASA missions related to ocean physics. As a climate scientist, Nadya studies the ocean’s role in climate, including sea level rise, Earth's water cycle, ocean heat and freshwater budgets, and the air-sea interaction. She holds a Ph.D. in Ocean Physics and an M.S. in Applied Mathematics. She raises two young scientists with her husband in the Washington, DC area.

  • Jessica Neu, Associate Directorate Scientist for JPL Earth Science
    Dr. Jessica Neu, Associate Directorate Scientist for JPL Earth Science

    Dr. Jessica Neu is the associate directorate scientist for Earth science at NASA’s Jet Propulsion Laboratory. She is also a principal scientist in the Tropospheric Composition group within JPL’s Earth Science section. Her research focuses on using satellite observations and models to understand what drives changes in atmospheric composition, from air quality at Earth’s surface to the ozone layer high above. She focuses on disentangling natural variations from changes caused by human activity to better understand the human fingerprint on the atmosphere and how it is evolving. Dr. Neu is also the former deputy principal investigator of the Tropospheric Emission Spectrometer instrument on NASA’s Aura satellite and is a member of the Aura Microwave Limb Sounder Science Team. Dr. Neu received her B.S. in Meteorology from Texas A&M University and her Ph.D. in Atmospheric Sciences from Massachusetts Institute of Technology (MIT).

  • Mike Gunson, Program Manager of JPL's Global Change and Energy Program
    Dr. Michael Gunson, Program Manager of JPL's Global Change and Energy Program

    With a Ph.D. in Chemistry from Bristol University, Dr. Michael Gunson is the Global Change and Energy Program manager and an Orbiting Carbon Observatory-2 (OCO-2) project scientist. His research interests lie in atmospheric remote sensing, atmospheric composition and chemistry, and climate change. Prior to his present JPL roles, Dr. Gunson worked as a lead scientist for building the Atmospheric Infrared Sounder (AIRS) instrument onboard NASA’s AQUA satellite and the Tropospheric Emission Spectrometer (TES) onboard the AURA satellite.

  • Dr. Duane Waliser, Chief Scientist of JPL's Earth Science and Technology Directorate
    Dr. Duane Waliser, Chief Scientist of JPL's Earth Science and Technology Directorate

    Dr. Duane Waliser has a Ph.D. in Physical Oceanography from the University of California, San Diego. In addition to being the Earth Science and Technology Directorate's chief scientist at the Jet Propulsion Laboratory, he is an adjunct professor in the University of California, Los Angeles's Department of Atmospheric and Oceanic Sciences and a visiting associate in Caltech's Geological and Planetary Sciences Division. His research includes focus on climate dynamics and variability, ocean-atmosphere interactions, water cycle and weather/climate predictability.

  • Dr. Josh Willis, Principal Investigator of Oceans Melting Greenland (OMG)
    Dr. Josh Willis, Principal Investigator of Oceans Melting Greenland (OMG)

    While Josh Willis is currently the OMG PI and a Jason-CS/Sentinel-6 project scientist, he's also a project scientist for NASA’s Jason-3 and Jason-2 missions. Dr. Josh Willis received his Ph.D. in Oceanography from the University of California, San Diego. Dr. Willis's research interests lie in estimating both regional and global sea level rise and ocean circulation using NASA satellite data, among others. Because these are connected to global climate change, he also participates in public outreach efforts to communicate their significance.

  • Joe Witte, Outreach Specialist
    Joe Witte, Outreach Specialist

    Joe Witte started his career as a glaciologist for the U.S.G.S., working on the ice of South Cascade Glacier, Wash. He has worked for network affiliate news stations in New York City, Seattle, Milwaukee, and Philadelphia, and was NBC’s morning weatherman for 20 years. He currently advises NASA communications teams about how to adapt NASA science content for use by TV meteorologists.


  • Susan Callery
    Susan Callery, Managing Editor

    Susan Callery has transitioned from being the manager of the Earth Science Public Engagement Office at the Jet Propulsion Laboratory to becoming the managing editor of climate.nasa.gov. Susan develops content ideas, assigns articles, edits content, and represents the website in larger NASA Communications meetings. Prior to working for NASA, Susan worked at the California Department of Toxic Substances Control and was a City Council member in Poway, Calif. Susan has a B.S. from the University of California, Los Angeles, and Master’s in Environmental Policy and Management from the University of Denver.

  • Holly Shaftel
    Holly Shaftel, Website Editor and Social Media Specialist

    Holly Shaftel manages the website’s daily operations, from publishing news to tracking metrics. She also maintains the website's companion social media channels (NASA Climate Change on Facebook, @NASAClimate on Twitter and @nasaclimatechange on Instagram) and occasionally writes original feature articles. Holly holds a B.S. in Organizational Communication from California State Polytechnic University, Pomona, and a Master’s in Public Administration (M.P.A.) from the University of Southern California.

  • Randal Jackson, Website Manager
    Randal Jackson, Senior Producer

    As a senior web producer at the Jet Propulsion Laboratory, Randal produces websites about Earth science and astronomy and cutting-edge visualization tools for the public. Prior to working for NASA, he was senior editor for science and technology at CNN.com, where he oversaw coverage of such stories as the Pathfinder mission to Mars, the deorbiting of the Mir space station, and the construction of the International Space Station. Randal majored in journalism and drama at the University of Georgia.

  • Daniel Bailey
    Daniel Bailey, Senior Science Editor

    Daniel answers questions from the public sent into the website directly and on the website's social media channels. He also writes original feature articles and blog posts and holds degrees in Earth science, cartography and remote sensing from Central Michigan University. An avid hiker, baseball fan and science fiction movie aficionado, Daniel has fulfilled one of his life’s dreams of working for NASA and is still looking forward to playing centerfield for the Yankees.

  • Alan Buis
    Alan Buis, Science Writer

    Alan Buis writes original feature and blog stories for climate.nasa.gov and assists with other content for the site. He has more than 35 years of experience in science communications. Prior to joining the NASA Climate team in 2018, Alan spent 17 years in Media Relations at NASA’s Jet Propulsion Laboratory, covering the Earth science beat, where he developed a passion for climate communications. He previously worked in Media Relations for Rockwell International and Boeing, supporting such programs as the Space Shuttle, International Space Station, GPS satellites, advanced launch system concepts and the Delta family of expendable launch vehicles. He holds a Bachelor’s in Communications from California State University, Fullerton.

  • Susan Bell
    Susan Bell, Video Series Producer

    Susan brings over 15 years of media production experience to her role at the Jet Propulsion Laboratory. Her prior work includes stop motion animation, documentary television, narrative filmmaking, transmedia storytelling, game design and interactive project management. She holds a bachelor’s degree from Baylor University and a Master of Fine Arts in Film Production from Florida State University, and is a member of the Producers Guild of America and the Academy of Television Arts and Sciences.


  • Jason Craig

    Technical Lead, Visualization Technology Applications and Development

  • Kristine Nguyen

    Chief Visualization Programmer

  • Christopher "Kit" Petrie

    Scientific Applications Software Engineer


  • Justin Moore

    Design and Development Director, Moore Boeck

  • Andrea Boeck

    Designer, Moore Boeck