University of Cambridge researchers develop electric charcoal sponge for energy-efficient CO2 capture from air.

Researchers at the University of Cambridge have developed an electric charcoal sponge that can capture carbon dioxide directly from the air. The team used a method similar to charging a battery to charge activated charcoal, which is often used in household water filters. The charged charcoal sponge requires lower temperatures to remove captured CO2, making it potentially more energy efficient than current carbon capture methods.