Hosted by Dr. Sean Crowell, Founder and CEO of LumenUs Scientific, Carbon Sense explores the cutting-edge science and technology driving climate solutions. With a focus on the transformative power of satellite data, each episode dives into the pressing challenges of carbon emissions and climate change. Dr. Crowell brings his expertise and vision for an inclusive, mindful approach to advancing climate technologies, creating a platform for leading experts to share actionable insights and solutions. Tune in to discover how innovation and collaboration are shaping a better future for all of us.
S1 Ep 19 Long Path Technologies: Continuous Methane Leak Detection with Dr. Caroline Alden
In this episode, Dr. Sean Crowell interviews Dr. Caroline Alden, the Chief Science Officer of Long Path. Long Path is an advanced methane monitoring startup with a simple goal: provide continuous monitoring of upstream oil & gas facilities to improve operations and lower methane emissions. They accomplish this goal using a high precision laser absorption spectrometer to create a "laser fence line monitor" around potential emission sources.
Have a listen to hear about Caroline's transition from carbon cycle scientist studying isotopes to the exciting world of an environmental monitoring startup.
keywords
methane monitoring, laser spectroscopy, climate change, oil and gas, emissions reduction, atmospheric science, OGMP 2.0, ARPA-E, environmental technology
Chapters
00:00 Introduction and Guest Background
01:27 Caroline Alden’s Career Path and Climate Focus
01:39 Transition from Geology to Atmospheric Science
04:30 The ARPA-E Program and Innovation in Methane Detection
09:14 Long Path’s Mission and Industry Impact
13:19 Understanding VOCs and VRUs in Oil & Gas
14:39 Adapting from Academic to Industry Work
16:36 Ground-Based Laser Spectroscopy Technology
22:33 Market Adoption and Cost Effectiveness
27:01 Data Delivery and User Needs
33:35 Regulatory Relationships and Standards
42:05 Future Directions and Market Expansion
46:40 Impact on Climate and Industry Collaboration
Long Path Technologies - https://longpathtech.com/
OGMP 2.0 - https://www.unep.org/resources/report/ogmp-20-guidelines-methane-management
ARPA-E Program - https://arpa-e.energy.gov/
LinkedIn - https://www.linkedin.com/in/caroline-alden/
18 Jan 2026
Ep 18 Health Impacts from Methane Co-pollutants with Dr. Kelsey Bilsback
Dr. Kelsey Bilsback discusses the health impacts of methane co-pollutants and the Methane Risk Map, which assesses health risks from methane emissions, in an interview with Sean Crowell.
3 Nov 2025
EP 17 High Precision Methane with Lasers feat Peter Roos
Peter Roos details Bridger Photonics' use of LiDAR technology to precisely measure methane emissions in the oil and gas industry, in an interview with Sean Crowell.
Who has been a guest on Carbon Sense
Names identified in recent episode analyses. Showing up to five guests.
Dr Kelsey Bilsback
Peter Roos
Tia Scarpelli
Aitor Morinigo
Dr Ilse Aben
Reach and audience
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Apple Podcasts (US)
5.0 / 5
1 ratings
Podcast Authority Score: 29 / 100
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Quality
59
Social presence
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YouTube
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Engagement
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