# Stopping geoengineering, by accident

- Show: [Catalyst](https://hardwarepodcasts.com/podcast/catalyst)
- Published: 2023-09-14
- Length: 45m
- Page: https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident

## Summary

Host Shayle Khan interviews Dr. Dan Visioni, a climate scientist at Cornell University, about the unintended climate consequences of the International Maritime Organization's 2020 regulations on shipping emissions. They discuss how reducing sulfur dioxide emissions, intended to improve air quality, inadvertently reduced marine cloud brightening, leading to a measurable increase in radiative forcing and ocean warming, particularly in the North Atlantic. Visioni explains that this 'accidental experiment' provides critical data on aerosol-cloud interactions and helps define the scale of permissible geoengineering experiments that could inform future climate intervention strategies without causing severe regional disruptions.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=0) Introduction: Catalyst rebranding and event announcements
- [2:51](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=171) The Accidental Experiment: IMO 2020 Sulfur Regulations
- [6:39](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=399) Marine Cloud Brightening and North Atlantic Dynamics
- [14:12](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=852) Volcanic Eruptions vs. Shipping Emissions: Stratospheric vs. Tropospheric Effects
- [17:47](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=1067) Measuring Radiative Forcing and Global Temperature Impact
- [28:17](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=1697) Regional Effects, Heat Waves, and Climate Trade-offs
- [34:17](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=2057) Lessons for Permissible Geoengineering Experiments
- [40:11](https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident#t=2411) Current State of Geoengineering Science and Policy

## Topics

- [Energy & climate tech](https://hardwarepodcasts.com/topic/energy-and-climate-tech)
- [Policy, trade & tariffs](https://hardwarepodcasts.com/topic/policy-trade-and-tariffs)
- [AI & machine learning](https://hardwarepodcasts.com/topic/ai-and-machine-learning)

## Most relevant to

established companies

## Mentioned

- International Maritime Organization (company)
- Cornell University (other)
- EnergyHub (company)
- Bloom Energy (company)
- Antenna Group (company)
- RE+ (other)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/catalyst/2023-09-14-stopping-geoengineering-by-accident. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to Catalyst.