UPCOMING EVENTS
Please join our mailing list to find out details. Our speaking events are on Saturdays at 4 pm and are announced by member email, local print and electronic bulletin boards. Membership is free — just click here or use menu – SIGN UP
VIDEOS OF PAST EVENTS
We video-record these lectures for later viewing (see the Events > Past Events Videos on home page menu).
Click title or photo to see description of events and speakers background
2025-01-11 Paul Bierman – When the Ice is Gone
THE LECTURE: Cold War Science and Engineering Today Reveals Greenland’s Fragility in an Overheating Climate Greenland, a remote arctic island, holds in its ice enough water to raise sea level over six meters (20 feet). That is enough to flood every major coastal city and displace up to half a billion people. Yet, until recently we knew very little about the past comings and goings of this massive ice sheet. Through the lens of climate science, environmental history, and the stories of people who studied Greenland over the past century, Paul will use the past to look into a warming… Read more2025-01-11 Paul Bierman – When the Ice is Gone
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2025-02-15 Jeff Tepper – Diamond: A Multifaceted Gem
LECTURE: Diamond: A Multifaceted Gem Diamonds have been revered as precious stones for over 2000 years, yet they are composed simply of carbon, one of the most common elements on Earth. Their rarity arises from the fact that they form at extreme pressures deep in the Earth’s mantle and then are brought rapidly to the surface in CO2-rich explosive eruptions. No such eruptions have occurred in human history, but we know they occur only in the interiors of continents, where they produce narrow vertical ‘kimberlite pipes’ that are mined in Africa, Russia, and, more recently, Canada. Tiny diamonds with a… Read more2025-02-15 Jeff Tepper – Diamond: A Multifaceted Gem
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2025-01-11 Paul Bierman – When the Ice is Gone
THE LECTURE: Cold War Science and Engineering Today Reveals Greenland’s Fragility in an Overheating Climate Greenland, a remote arctic island, holds in its ice enough water to raise sea level over six meters (20 feet). That is enough to flood every major coastal city and displace up to half a billion people. Yet, until recently we knew very little about the past comings and goings of this massive ice sheet. Through the lens of climate science, environmental history, and the stories of people who studied Greenland over the past century, Paul will use the past to look into a warming… Read more2025-01-11 Paul Bierman – When the Ice is Gone
2025-02-15 Jeff Tepper – Diamond: A Multifaceted Gem
LECTURE: Diamond: A Multifaceted Gem Diamonds have been revered as precious stones for over 2000 years, yet they are composed simply of carbon, one of the most common elements on Earth. Their rarity arises from the fact that they form at extreme pressures deep in the Earth’s mantle and then are brought rapidly to the surface in CO2-rich explosive eruptions. No such eruptions have occurred in human history, but we know they occur only in the interiors of continents, where they produce narrow vertical ‘kimberlite pipes’ that are mined in Africa, Russia, and, more recently, Canada. Tiny diamonds with a… Read more2025-02-15 Jeff Tepper – Diamond: A Multifaceted Gem
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ABOUT US
Our goal is to foster an understanding of Earth Science concepts by offering 5-8 illustrated lectures during the academic year and one or two summer field trips. We focus mainly, but not exclusively, on local and regional geologic features and issues (see yearly list under events). Membership and events are FREE and open to the public, although we gratefully accept donations to defray our expenses. QGS is an earth-science activity of the Jefferson Land Trust, which is located in Port Townsend, WA. We are in our 10th year here on the Quimper Peninsula.
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