If the Maldives wanted to send airplanes into the stratosphere to scatter sulfates, who could stop them?

NEWYORKER: The Climate Fixers

Just as promising was the presence of sulfates and sulfides, which some microbes consume as an energy source.

NEWYORKER: The Martian Chroniclers

But while stuck, Spirit had a breakthrough: it found soil rich in sulfates, which are a component of steam.

CNN: What we've done on Mars, and what's next

Whether by seeding clouds, spreading giant mirrors in the desert, or injecting sulfates into the stratosphere, most such plans seek to replicate the effects of eruptions like Mt.

NEWYORKER: The Climate Fixers

Grotzinger knew from satellite images that there was a layer of crystalline red hematite near the bottom, then a layer of clay about a hundred and sixty feet above it, then a layer of sulfates above that.

NEWYORKER: The Martian Chroniclers