Here's a reference point: - "Mount Pinatubo’s violent eruption [in 1991] injected about 15 million tons of sulfur dioxide into the stratosphere. The resulting

Here's a reference point: - "Mount Pinatubo’s violent eruption [in 1991] injected about 15 million tons of sulfur dioxide into the stratosphere. The resulting sulfuric acid aerosols remained in the stratosphere for about two years, and cooled the Earth’s surface by a range of 1 to 2 degrees Fahrenheit." https://www.nasa.gov/feature/goddard/2019/2018-s-biggest-volcanic-eruption-of-sulfur-dioxide https://www.nasa.gov/feature/goddard/2019/2018-s-biggest-vol... Looks like they're about 10.5 orders of magnitude short (of globally significant effects).