Winners of £14m contest make concrete to trap carbon dioxide

Elon Musk, left, shakes hands with XPRIZE founder and Executive Chairman Peter Diamandis during the presentation of the XPRIZE for Children’s Literacy in Los Angeles, in this Wednesday, May 15, 2019, file photo. Organizers of a $20 million contest to develop products from greenhouse gas that flows from power plants announced two winners Monday, April 19, 2021, ahead of launching a similar but much bigger competition backed by Elon Musk. Both winners made concrete that trapped carbon dioxide, keeping it out of the atmosphere, where it can contribute to climate change. Production of cement, concrete’s key ingredient, accounts for 7% of global emissions of the greenhouse gas, said Marcius Extavour, XPRIZE vice president of climate and energy.(AP Photo/Marcio Jose Sanchez, File)

Organisers of a 20 million dollar (£14 million) contest to develop products out of greenhouse gas from power plants have announced two winners ahead of a similar but much bigger competition backed by Elon Musk.

Both winners made concrete that trapped carbon dioxide, keeping it out of the atmosphere, where it can contribute to climate change.