Luke Iseman, a serial inventor and the former director of hardware at Y Combinator, believed all of that research was not happening fast enough. So he started tinkering with releasing sulfur dioxide particles into the atmosphere with balloons, raised venture capital to fund the startup, and brought on co-founder Andrew Song to manage sales. Make Sunsets was planning to launch three latex weather balloons that would release anywhere between 10 and 500 grams of sulfur dioxide in January. But many industry watchers criticized its plans for being hasty and lacking sophistication. 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.”
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