EPA is pressing a solar geoengineering firm that sells “cooling credits” to provide the government with more details about its operations.
The environmental agency sent a letter requesting details about the company Make Sunsets, a U.S. startup that launches weather balloons that aim to reduce temperatures by depositing sunlight-reflecting sulfate particles into the upper atmosphere.
In its request this week to Make Sunsets founders Luke Iseman and Andrew Song, EPA asked for data about the company’s operations and details about each balloon launch.
The company made headlines two years ago after launching balloons in Baja California, Mexico. The Mexican government said it hadn’t been notified and that it would “prohibit and, where appropriate, stop experimentation with solar geoengineering in the country.”
