Blue Dot

Blue Dot 122: NASA's Josh Willis

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NASA

Lost in a lot of the noise about climate change and sea level rise is the role that warming ocean currents are playing in the melting of ice. And perhaps nowhere on Earth is that role more dramatically playing out than on the giant glacial clad island of Greenland. Dave is joined by his longtime friend Josh Willis, the Principal Investigator for NASA's OMG mission -- Oceans Melting Greenland. The warming Atlantic ocean circulation system is demonstrably melting the ice shelves of Greenland which will accelerate the rate of sea level rise with global consequences.

At the end of the program, Blue Dot's nature and environment correspondent Sheryl Hosler shares with us her audio essay on the importance of mentors for environmental education.

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.