Most other opportunities are not super-volcanoes, threatening to cover a large portion of the USA with dust. Defusing that threat could be desirable. https://

Most other opportunities are not super-volcanoes, threatening to cover a large portion of the USA with dust. Defusing that threat could be desirable. https://en.wikipedia.org/wiki/Yellowstone_Caldera https://en.wikipedia.org/wiki/Yellowstone_Caldera