Supporting an informed, evidence-based discussion of sunlight reflection methods (SRM).
Introducing SRM360
SRM360 is a non-profit knowledge hub that explores the science and evidence behind sunlight reflection methods, or solar radiation modification (SRM). We work with experts and advisors from around the world to provide clear and engaging information through articles, graphics, videos, and podcasts.
A Growing Number of US States Consider Bills to Ban Geoengineering
The first few months of 2025 saw a sharp rise in the number of US states considering proposals to ban solar geoengineering, a...
5 min read
Air Pollution and SRM
Some types of air pollution reflect sunlight, reducing global warming. Can we avoid the negative health impacts of air pollution while still using those particles to reflect sunlight?
20 mins
IPCC to Include SRM in Next Assessment Report
In late February, the IPCC met in China to develop chapter outlines for the 7th Assessment Report (AR7). We asked experts for...
3 min read
News Roundup: The Next IPCC report, Alternative Aerosol Particles, and More
We’re joined by SRM experts to discuss the latest news: Sandro Vattioni, Alfonso Fernández, Daniele Visioni, and Tyler Felgenhauer.
31 mins
SRM360 Explorer
Alternative Particles Could Reduce the Side Effects of SAI
Sandro Vattioni discusses the different particles that could be used for geoengineering with stratospheric aerosol injection (SAI). He argues that solid particles could offer a better alternative to sulphur dioxide – the most widely studied substance for injection – but without dedicated research, this option will not be available in time.
How Would SAI Impact Renewable Energy?
Renewable energy depends on sunlight, wind, and other environmental energy sources. How could climate change and geoengineering with stratospheric aerosol injection (SAI) affect renewable power generation?
SRM Governance With Cynthia Scharf
Join our exclusive conversation with Cynthia Scharf, Senior Fellow at the Centre for Future Generations.
Solar Geoengineering, Sovereignty, and the Case for Ecological Realism
Beth Chalecki argues that states clinging to an outdated vision of sovereignty could see solar geoengineering as a means to disrupt their rivals. However, she suggests that if they recognise the world’s ecological realities, there may be a collaborative path forward on these contentious technologies.
News Roundup: James Hansen and SRM, Arctic Ice Project Shuts Down, New MCB Studies, and More
We’re joined by SRM experts: Viktor Jaakkola, Head of Scientific Collaboration at Operaatio Arktis; Michael Diamond, Assistant Professor of Meteorology and Environmental Science at Florida State University; and Rob Bellamy, Senior Lecturer in Climate and Society at the University of Manchester.
How Would SRM Affect Plants?
Plants need sunlight, water, and carbon dioxide (CO2) to photosynthesise. They also need nutrients and the right climate conditions to grow well. Climate change affects these factors, as would sunlight reflection methods (SRM), also known as solar geoengineering, though in different ways.