There are presently five reflectivity intervention methods that are low risk and potentially cost-effective.

Reflective Earth can objectively evaluate the surface interventions and determine the additional energy reflected to space.
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Reflective Earth Seeking Partners to Build Reservoir Covers
News
Freshwater Covers
January 13, 2024
Jeff Haley
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Georgia USA school painted playground with solar reflective paint
Cool Roofs and Pavement
News
September 21, 2022
Vani Khokar
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Los Angeles has applied 181 lane-miles of reflective paint on asphalt
Cool Roofs and Pavement
News
September 8, 2023
Charlotte Kramon
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Engineers and policy analysts publish a report to promote placing a reflector between the Sun and the Earth
News
Other, Not-Yet-Promising Methods
October 31, 2023
Planetary Sunshade Foundation
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New non-profit formed to develop Marine Cloud Brightening technology
Marine Cloud Brightening
News
December 13, 2023
Professor Stephen Salter, Dr Brian von Herzen, and others
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Reflective coating applied to shopping center parking lot in Phoenix
News
Cool Roofs and Pavement
September 19, 2023
Suelen Rivera
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Large reflective reservoir covers of large square glass tiles with anchors at each end can withstand wind and waves
Freshwater Covers
September 16, 2023
Jeff Haley
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Reflective reservoir covers may be cost effective in hot, dry places
News
Freshwater Covers
September 16, 2023
Jeff Haley
Read
Brightening dark salt ponds to reduce global warming is cost effective
Salt Pan Brightening
News
September 14, 2023
Jeff Haley
Read
City of Austin Texas makes cool pavement and promotes cool roofs and shade structures
Cool Roofs and Pavement
News
July 31, 2023
Read
Improved shade between Earth and Sun would use an asteroid for mass to hold it against solar wind
Other, Not-Yet-Promising Methods
July 31, 2023
István Szapudi
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More development is needed for effective shade fabrics to cool cities and reduce global warming
News
Cool Roofs and Pavement
September 27, 2021
Jeff T Haley
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Cementitious reflective white coatings for cooling buildings and cities
Cool Roofs and Pavement
News
September 14, 2022
Ning Yang and others
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Sulfur particles emitted in cargo ship exhaust brighten marine clouds but also cause harmful pollution
Marine Cloud Brightening
News
July 3, 2023
Dr Zeke Hausfather and Prof Piers Forster
Read
Planting Reflective Cover Crops in Europe can offset about 6 metric tons of carbon dioxide in the atmosphere.
Reflective Cover Crops
News
June 22, 2023
Gaetan Pique and others
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USA White House publishes plan for researching Solar Radiation Management
News
June 30, 2023
White House Office of Science and Technology Policy
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Evaporation ponds beside desalination plants can cool the planet and reduce environmental harm
Salt Pan Brightening
May 12, 2023
Jeff Haley
Read
San Antonio Texas painting streets in ten locations
Cool Roofs and Pavement
News
May 2, 2023
City of San Antonio
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Existing technology can be adapted to start field trials of Marine Cloud Brightening
News
Marine Cloud Brightening
March 13, 2023
Christian Claudel, Fabian Hoffmann, and Younan Xia
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Increasing Reflectivity of Roofs in Africa
Cool Roofs and Pavement
March 7, 2023
Read
Covering snow and glaciers with white powder
Other, Not-Yet-Promising Methods
December 14, 2022
D. Johnson and others
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Solar Reflective Reservoir Covers
Freshwater Covers
February 28, 2023
Jeff Haley
Read
The February 27 open letter urging research into reflecting sunlight is mostly right but got one thing wrong
News
February 27, 2023
Jeff T Haley
Read
NASA collecting aerosol data up to 60,000 feet
News
February 17, 2023
Read
Dust ballistically shot from the moon can reflect sunlight
Other, Not-Yet-Promising Methods
February 8, 2023
Bromley and others
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Reflective Roofs on Shipping Containers & Trucks
Cool Roofs and Pavement
March 14, 2022
Read
Start-up company plans to inject SO2 with balloons and sell carbon offsets
News
Other, Not-Yet-Promising Methods
November 23, 2022
Read
Reflectors in space at Lagrangian L1 between the Earth and the Sun
Other, Not-Yet-Promising Methods
May 20, 2020
Read
Marine Cloud Brightening R&D Progress
Marine Cloud Brightening
September 7, 2021
Kate Murphy, Gary Cooper, Sarah Doherty, and Rob Wood
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Reflective Cover Crops
Reflective Cover Crops
August 20, 2022
Read
Government Reports on Stratospheric Aerosol Injection
Other, Not-Yet-Promising Methods
October 31, 2022
Read
Floating, Alkalizing, Reflective Glass Tiles
Other, Not-Yet-Promising Methods
December 16, 2021
Jeff Haley and Matthew Nicklas
Read
Micro-bubbles injected into ocean water
Other, Not-Yet-Promising Methods
September 28, 2010
Russell Seitz
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Cirrus Cloud Thinning
Other, Not-Yet-Promising Methods
March 14, 2022
Read
>95% Reflective White Paint
Cool Roofs and Pavement
March 14, 2022
Read
Cool Roofs, Walls, and Pavement Reduce Peak Urban Temperatures
Cool Roofs and Pavement
March 24, 2022
Read
Why the record low Arctic sea ice this October is so alarming
News
October 28, 2020
Lili Pike
Read
'Whitest ever' paint reflects 98% of sunlight
Cool Roofs and Pavement
April 16, 2021
Victoria Gill
Read
Urban Heat: Can White Roofs Help Cool World’s Warming Cities?
Cool Roofs and Pavement
March 7, 2018
Fred Pearce
Read
Reflecting Sunlight: Recommendations for Solar Geoengineering Research and Research Governance
News
March 25, 2021
National Academies of Sciences, Engineering, and Medicine
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Keeping Cool Efficiently During Heat Waves
Cool Roofs and Pavement
August 11, 2020
By Jessica Scully
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Climate Veterans & Inventors Team Up To Launch New Tools To Cool The Earth With Reflection
News
October 6, 2020
Reflective Earth
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Cool roofs help reduce heatwave impacts in Bangladesh and Indonesia
Cool Roofs and Pavement
News
May 14, 2021
K-CEP
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Cool roofs, cooler designs as the building industry embraces energy sustainability
News
June 8, 2021
Ben Ikenson
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As Climate Disasters Pile Up, a Radical Proposal Gains Traction
News
October 28, 2020
Christopher Flavelle
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Why Reflectivity?
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November 8, 2022
Brian Smoliak and Michel Gelobter
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Introducing the Global Reflectivity Map
Blog
News
November 8, 2022
Brian Smoliak and Michel Gelobter
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Jeff Haley: Welcome to Reflective Earth
Blog
News
October 7, 2020
BY JEFF HALEY
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