https://thenextweb.com/syndication/2019/12/01/mit-engineers-made-a-cheaper-and-more-efficient-device-to-trap-carbon-dioxide/

Capturing carbon dioxide from smokestacks, and even removing it directly from air, might be the only way to avert the most catastrophic effects of climate change. Engineers at MIT have now created a device to trap carbon dioxide that is much less energy-intensive and costly than today’s technologies.

The device, reported in the journal Energy and Environmental Science, works a lot like a battery. It absorbs carbon dioxide from air passing over its electrodes. It could be made as small and large as needed, making it easy to use at different carbon dioxide emission sources.