Make Sunsets, sells “cooling credits," which pay to launch weather balloons made of biodegradable latex containing hydrogen and sulfur dioxide. Environmental Protection Agency Administrator Lee Zeldin is demanding a company that deliberately sends sulfur dioxide into the air to combat global warming provide detailed information on its practices. Critics of the practice, which is called geoengineering, say it puts potentially harmful pollutants into the air and needs more oversight. The company Zeldin is scrutinizing, Make Sunsets, sells “cooling credits.” The credits pay to launch weather balloons made of biodegradable latex containing hydrogen and sulfur dioxide. According to the company, each...