Sponsor: Western USA – Region 6
Speaker: Dr. Leslie Field, Bright Ice Initiative

Date: 17 Jun 2025
Time: 06:00 PM PDT to 07:00 PM PDT
Cost:
Location:
Reservations: IEEE
Summary:
This talk will describe the work of Bright Ice Initiative (http://www.brighticeinitiative.org) and its focus on increasing the reflectivity of ice to slow the disastrous impact of glacial melting. Bright Ice Initiative works in regions of critical need to codevelop and evaluate solutions with and for communities living under the greatest threat. By preserving and restoring reflectivity to vital glacial regions, the pace of temperature rise can be reduced, potentially lessening sea level rise while protecting ecosystems and species from catastrophic loss.

In Minnesota, Bright Ice Initiative tried out Hollow Glass Microspheres (HGMs) to brighten the surface of dirty ice and melt water, increasing the albedo, and found that these tiny, bright bubbles – made from abundant sand-based materials and used worldwide in many everyday commercial applications – work very well to reduce melting when used in thin layers over flat areas. But since glaciers are sloped—and Hollow Glass Microspheres (HGMs) are round— a material that doesn’t roll is needed. Bright Ice Initiative initially carried out tests of a safe, clay-based material for brightening ice that stays in place on Langjökull Glacier in Iceland, measuring ice and snow thickness, temperature, and albedo (reflectivity) throughout the melt season. The results showed that this approach was safe and effective—even on a melting sloped glacier.

Bio: Dr. Leslie Field As an undergraduate at Massachusetts Institute of Technology, Leslie Field studied Chemical Engineering and did an optional Bachelor’s thesis on “Superheat Limits of Non-Ideal Binary Liquid Mixtures” with Prof. Robert C Reid, one of the world’s premier thermodynamicists, as her advisor. She went on to earn a PhD and MS in Electrical Engineering from UC Berkeley. There she specialized in Micro-Electro-Mechanical-Systems (MEMS) at the Berkeley Sensor & Actuator Center and was the first woman to earn a PhD from BSAC. She has years of teaching experience at Stanford University as well as industrial experience with Hewlett-Packard Labs, where she worked on MEMS and Microfluidics. She has founded and run two successful consulting companies, MEMS Insight and SmallTech Consulting.

Her work’s main focus in recent years is on solving urgent challenges in climate. She started and ran the non-profit Ice911 Research/Arctic Ice Project for 16 years, and has taught a seminar class on Engineering and Climate Change at Stanford University for over a decade. Last year she founded a nonprofit, Bright Ice Initiative, to address climate change.