We're already used to seeing bales of corn waste in our fields, but could they soon become a familiar sight on the ocean floor?
Heavy industries like cement and steel are dirty business. But can new carbon capture technologies help them to become more circular?
As carbon dioxide levels hit record highs, scientists and entrepreneurs around the world are devising new ways to “scrub” the atmosphere of CO2. For its part, California-based startup Holy Grail is developing cost-effective, simple carbon capture devices that can be deployed by small businesses, and maybe – one day – even individual consumers.
Returning to a pre-industrial era before we started burning coal to try and avert climate change might sound like the stuff of dreams for some environmentalists. Now researchers in Australia have come up with a method of "undoing" emissions by turning them back into coal.
A Canadian Direct Air Capture company claims it can drastically reduce the costs of removing carbon from the air - and turn it into fuel.