What modern suggestion is cited for binding the excess CO2 atmosphere on Venus?
Triggering chemical reactions on the surface to bind CO2 into carbonate rocks
The primary obstacle on Venus is the runaway greenhouse effect caused by its excessively dense carbon dioxide atmosphere, which is over 90 times thicker than Earth's. Early concepts involving upper atmospheric algae proved unworkable due to combustion risks with resulting oxygen and the sheer atmospheric density. Modern proposals focus on chemically neutralizing this gas mass. The current favored approach involves deploying autonomous robotic systems onto the Venusian surface to chemically react with the atmosphere, forcing the $ ext{CO}_2$ to bind permanently into stable carbonate rocks. This process is often supplemented by plans for extensive asteroid mining to supply the necessary calcium and magnesium compounds required as reagents for this sequestration reaction.
