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Dave talks to two NASA climate scientists on the topic of global sea level rise. First, longtime friend of Blue Dot Josh Willis joins us to talk about the difficulties of collecting data from Greenland's massive ice sheets in a time of pandemic and discusses the rigors of peer reviewed research.

Then NASA/JPL Postdoctoral Fellow Thomas Frederickse visits with us from the Netherlands. He led a breakthrough study on the water cycle budget that for decades has mysteriously underestimated the observed rising of global sea levels. Thomas also gives some insight in what its like to be on the faned Jet Propulsion Laboratory campus.


Matt Fidler is a producer and sound designer with over 15 years’ experience producing nationally distributed public radio programs. He has worked for shows such as Freakonomics Radio, Selected Shorts, Studio 360, The New Yorker Radio Hour and The Takeaway. In 2017, Matt launched the language podcast Very Bad Words, hitting the #28 spot in the iTunes podcast charts.
Dave Schlom is the longtime host and creator of Blue Dot. From surfing to Voyager in interstellar space, rock guitar to orcas in our imperiled oceans, the topics on Blue Dot are as varied as the host’s interests and connections -- which are pretty limitless! An internationally respected space history journalist, Dave is also deeply fascinated by all aspects of the grand workings of nature’s awesome machinery on scales ranging from galactic to subatomic. And topics take in all aspects of the arts and sciences.