Common clay could be cheapest-ever way to capture CO₂, say US scientists

Scientists at Purdue University and Sandia National Laboratories discovered that clay minerals, particularly saponite, can effectively capture carbon dioxide from the air. This breakthrough could lead to low-cost, large-scale CO₂ removal using abundant natural materials. The team found that saponite performs best in dry conditions, offering a potential alternative to expensive carbon capture technologies currently in use.