Topic
Introduction to SRM
Sunlight reflection methods, also known as solar radiation modification or SRM, describes a set of ideas to limit global warming by reflecting a small amount of sunlight before it can heat the earth’s surface.
SRM could reduce many of the impacts of human-induced climate change but would not address its root causes. It would also bring additional risks and uncertainties.
This page presents an introduction to the most studied ideas, and some of the key challenges around their research and potential deployment.
Featured Content
What is SRM?
Sunlight reflection methods – also known as solar geoengineering or solar radiation modification (SRM) – are a set of ideas to slow or stop global warming by reflecting a small fraction of sunlight away from the earth.
What Is SRM?
Sunlight reflection methods or solar radiation modification (SRM) describes a set of ideas to counteract global warming by re...
7 min read
The Importance of Transparent, Unbiased Communication on SRM
Whitney Peterson of The Alliance for Just Deliberation on Solar Geoengineering highlights the critical role of transparency a...
6 min read
News Roundup: History of SRM
A look-back over the entire history of sunlight reflection methods research and ahead to its future.
43 mins
SRM Approaches
Stratospheric Aerosol Injection
Stratospheric aerosol injection (SAI) is an idea to create a layer of tiny reflective particles high in the atmosphere to ref...
7 min read
Marine Cloud Brightening
Marine cloud brightening (MCB) is an idea to enhance the reflectivity of low-lying clouds over the oceans. Spraying tiny sea-...
6 min read
Space-based SRM
Objects in space that reflect sunlight away from the Earth would lower the planet’s surface temperature. However, to reflec...
7 min read
Socio-Political Challenges and Concerns
Mitigation Displacement: Could SRM Undermine Emissions Cuts?
A common objection to the study and potential development of sunlight reflection methods, also known as solar radiation modif...
5 min read
Unilateral Deployment: Could a Single Country Change the Global Climate?
Given how inexpensive and powerful some sunlight reflection methods, also known as solar radiation modification (SRM), appear...
7 min read
Will Scientists Know if SRM Caused Extreme Weather?
If sunlight reflection methods, also known as solar radiation modification (SRM), were deployed to lower temperatures, and ev...
5 min read
articles
Unilateral Deployment: Could a Single Country Change the Global Climate?
Given how inexpensive and powerful some sunlight reflection methods, also known as solar radiation modification (SRM), appear...
7 min read
Will Scientists Know if SRM Caused Extreme Weather?
If sunlight reflection methods, also known as solar radiation modification (SRM), were deployed to lower temperatures, and ev...
5 min read
Mitigation Displacement: Could SRM Undermine Emissions Cuts?
A common objection to the study and potential development of sunlight reflection methods, also known as solar radiation modif...
5 min read
What Is SRM?
Sunlight reflection methods or solar radiation modification (SRM) describes a set of ideas to counteract global warming by re...
7 min read
Marine Cloud Brightening
Marine cloud brightening (MCB) is an idea to enhance the reflectivity of low-lying clouds over the oceans. Spraying tiny sea-...
6 min read
Space-based SRM
Objects in space that reflect sunlight away from the Earth would lower the planet’s surface temperature. However, to reflec...
7 min read
Stratospheric Aerosol Injection
Stratospheric aerosol injection (SAI) is an idea to create a layer of tiny reflective particles high in the atmosphere to ref...
7 min read
infographics
Stratospheric aerosol injection
Stratospheric aerosol injection (SAI) is an idea to lower the global temperature by dispersing tiny particles in the stratosp...
An overview of sunlight reflection methods
Sunlight reflection methods (SRM) are hypothetical approaches to lower global temperatures by increasing the amount of sunlight reflected to space.
Sunlight reflection methods
Sunlight reflection methods (SRM) are hypothetical approaches to lower global temperatures by increasing the amount of sunlight reflected to space.
Marine cloud brightening
Marine cloud brightening (MCB) is an idea to enhance the reflectivity of low-lying clouds over the oceans. MCB may be able to...
perspectives
What’s in a Name? How We Describe SRM at SRM360
There are many different ways to describe ideas to reflect sunlight in order to lower global temperatures. Pete Irvine and Ma...
7 min read
Governance Recommendations for the For-profit SAI Startup “Stardust”
Janos Pasztor presents the governance recommendations he prepared for the for-profit startup “Stardust”, which is looking...
5 min read
With Arctic Tipping Points So Close, We Cannot Ignore SRM
Viktor Jaakkola of Operaatio Arktis argues that the rapid climate changes in the Arctic and the likelihood of key tipping poi...
5 min read
The Importance of Transparent, Unbiased Communication on SRM
Whitney Peterson of The Alliance for Just Deliberation on Solar Geoengineering highlights the critical role of transparency a...
6 min read
videos
Marine Cloud Brightening
Marine Cloud Brightening – or MCB – is an idea to brighten clouds over the ocean to reflect more sunlight back to space. How could it work and why is it being studied?
2 mins
Stratospheric Aerosol Injection
Stratospheric Aerosol Injection – or SAI – is an idea to create a thin, persistent layer of tiny particles in the upp...
2 mins
What is SRM?
Sunlight reflection methods – also known as solar geoengineering or solar radiation modification (SRM) – are a set of id...
2 mins
Introducing SRM360
SRM360 is a non-profit knowledge hub which explores the science and evidence behind sunlight reflection methods, or solar rad...
1 mins