In this conversation, Dr. Sean Crowell and Dr. David Crisp delve into the intricate interactions of light with matter, focusing on the principles of absorption, transmission, and reflection of photons. They explore the challenges of measuring greenhouse gases, the importance of accuracy and precision in remote sensing instruments, and the role of satellites in monitoring emissions. The discussion also highlights the differences between CO2 and methane, their sources, and their atmospheric lifetimes, while emphasizing the need for improved measurement systems to inform climate policy effectively.

Chapters

00:00 Understanding Light Interaction: Absorption, Transmission, and Reflection

08:18 Modeling Planetary Atmospheres and Greenhouse Effects

14:12 Measuring Accuracy and Standards in Spectrometry

22:27 Signal to Noise Ratio: Precision in Measurements

26:31 Remote Sensing Retrieval Algorithms and CO2 Measurement

34:06 Applications of Greenhouse Gas Measurements

41:41 Measuring Emissions: The Challenge of Cities

45:03 The Evolution of Emission Mapping Instruments

48:26 Commercial vs. Public Sector in Emission Monitoring

52:39 The Need for Precision in Emission Measurements

58:41 Understanding CO2 and Methane: Differences and Implications

01:04:50 Challenges in Remote Sensing: Optical Path and Scattering

01:19:25 The Future of Emission Monitoring: Lessons Learned and Next Steps

01:21:38 Understanding Photons and Radiation

01:21:47 The Importance of Subscribing and Supporting the Podcast

In this episode, Dr. David Crisp shares his remarkable journey from studying planetary atmospheres to leading the development of the Orbiting Carbon Observatory (OCO). He discusses the challenges faced during the mission, the importance of international collaboration in climate monitoring, and the advancements in remote sensing technology for measuring greenhouse gases. Dr. Crisp emphasizes the significance of accurate carbon dioxide measurements in understanding and combating climate change, and he reflects on the future of carbon monitoring and the role of scientific collaboration in addressing global environmental challenges.

Keywords: remote sensing, greenhouse gases, carbon emissions, Orbiting Carbon Observatory, climate change, international collaboration, NASA, carbon dioxide measurement, space missions, environmental science

In this inaugural episode of Carbon Sense, host Sean Crowell welcomes atmospheric science expert Dr. Scott Denning, retired professor from Colorado State University and a pioneer in climate modeling. Together, they dive deep into the intricacies of carbon dioxide, methane, and the critical role they play in climate change. Dr. Denning explains the science behind the carbon cycle and how human activities have dramatically shifted the balance, with tangible effects on ecosystems and global warming.

This conversation is packed with fascinating insights, from how plants “breathe” carbon dioxide, to why methane is the “Elvis” of greenhouse gases—it wiggles its hips but dies young. Whether you’re a climate science novice or a seasoned environmentalist, Dr. Denning’s engaging storytelling and practical breakdown of complex topics will leave you with a newfound appreciation for the world’s carbon dynamics.