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Debates about its efficacy abound, with the United States, Europe and several environmental groups speaking out about the opportunities and risks. Research has been conducted into other potentially less dangerous SRM technologies, including marine cloud brightening, which involves the spraying of seawater from ships to make clouds more reflective. One group of 60 scientists launched a global initiative last year aimed at persuading governments to ban outdoor solar geoengineering experiments. "Once you've committed to it, you've got to keep doing it," said Laura Wilcox, a climate expert at Britain's University of Exeter. "If you stop, then you're going to see all of that warming that you've missed, essentially on climate timescales overnight.

Persons: Luke Iseman, SO2, Benjamin Sovacool, Andrea Hinwood, you've, Laura Wilcox, David Stanway, Jake Spring, Pravin Organizations: REUTERS, U.S . National Academy of Sciences, Company, Reuters, Harvard University, Swedish Space Corporation, Research, Boston University, SRM, United Nations Environment Program, Britain's University of Exeter, Pravin Char, Thomson Locations: Baja California, Mexico, Handout, United States, Europe, China, England, Africa, Asia

Entrepreneur Luke Iseman said the sulfur dioxide in the balloons would deflect sunlight and cool the atmosphere, a controversial climate strategy known as solar geoengineering. The Mexican government told Reuters it is now actively drafting “new regulations and standards” to prohibit solar geoengineering inside the country. While the Mexican government announced its intention to ban solar geoengineering in January, its current actions and plans to discuss geoengineering bans with other countries have not been previously reported. GLOBAL GEOENGINEERING BANClimate policy experts said Mexico is in a position to help set the rules for future geoengineering research. David Keith, a professor of applied physics and public policy at Harvard University who has dedicated much of his research to solar geoengineering, called Iseman's launch a "stunt."

☆ After Mexican government cracked down on solar geoengineering, startup lets off balloons in Nevada
▼ + stars: | 2023-02-22 | by ( Catherine Clifford | In Catclifford | ) www.cnbc.com time to read: +3 min

Essentially, solar geoengineering is mimicking what happens when a volcano erupts, and it's known to work. Solar geoengineering is not a solution to climate change, and nobody who studies it rigorously suggests it should be. Injecting sulfur dioxide into the atmosphere could damage the ozone layer, cause respiratory illness and create acid rain. The White House is coordinating a five-year research plan into solar geoengineering, the quadrennial U.N.-backed Montreal Protocol assessment report included an entire chapter addressing stratospheric aerosol injection (more colloquially called solar geoengineering), and Dustin Moskovitz, a co-founder of Facebook , is funding solar geoengineering research via his philanthropic organization, Open Philanthropy. The Nevada launch was previously detailed by Time reporters, who were there.

☆ Mexico Bans Climate Startup’s Experiment to Cool the Earth
▼ + stars: | 2023-01-20 | by ( Eric Niiler | ) www.wsj.com time to read: 1 min

A California tech entrepreneur says he might move his plan to launch sunlight-reflecting particles into the atmosphere to the U.S. or another country, after Mexican officials blocked the project. “There is no law that prevents me from doing this,” said Luke Iseman , chief executive and founder of Make Sunsets. The startup had raised $750,000 in venture capital and other funds with the idea of selling “cooling credits” to U.S. firms, according to Mr. Iseman.

☆ Mexico cracks down on solar geoengineering, forcing startup to pause operations
▼ + stars: | 2023-01-18 | by ( Catherine Clifford | In Catclifford | ) www.cnbc.com time to read: +6 min

The sun sets behind power lines near homes during a heat wave in Los Angeles, California on September 6, 2022. On Friday, the government of Mexico issued a statement that it plans to "prohibit and, where appropriate, stop experimentation practices with solar geoengineering in the country." Both Wanser and Make Sunsets both indicated their support for thorough and detailed study of sunlight reflection technologies. But it's not known whether the damage caused by sunlight reflection technology — possibly including damage to the ozone layer, increased respiratory illness, and acid rain — could be worse than the future effects of global warming. Understanding its risks and benefits through research is critical for the world's most climate-vulnerable people," she said in a statement.

☆ Inventor in Baja is testing a plan to cool the Earth by mimicking a volcanic eruption
▼ + stars: | 2023-01-07 | by ( Catherine Clifford | In Catclifford | ) www.cnbc.com time to read: +14 min

When Luke Iseman was thinking of launching a solar geoengineering startup, he talked to experts in the field. I want no geoengineering to occur," Iseman told CNBC. And that's a that's a pretty terrifying world to imagine," Iseman told CNBC. "Initially, I was really skeptical entirely of the of the voluntary carbon credit market," Iseman told CNBC. Pasztor told CNBC.

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