The ocean is already one of the best climate solutions we’ve got. It absorbs carbon dioxide from the atmosphere that would otherwise contribute to global warming. But what if it could store even more CO2? Marketplace’s Amy Scott, host of our climate podcast “How We Survive,” looked into one strategy to achieve that goal. And she set sail for a demonstration.

This feature is part of “How We Survive.” You can hear more of Amy’s reporting on marine carbon removal and other geoengineering solutions on their new season, wherever you get your podcasts.