Arctic Ice Project cancels geoengineering tests over environmental concerns

The U.S.-based Arctic Ice Project (AIP) has halted its geoengineering experiments in Alaska, citing potential risks to the Arctic food chain and broader environmental concerns, Climate Home News reported.

The Silicon Valley nonprofit had proposed using silica particles to increase sea ice reflectivity and slow melting but announced last week that it is shutting down operations due to skepticism, funding challenges, and opposition to introducing new materials into the Arctic.

The decision was welcomed by indigenous and environmental groups, who had long warned of unintended ecological consequences. Panganga Pungowiyi of the Indigenous Environmental Network criticized the project, emphasizing the importance of respecting indigenous knowledge and ecosystems.

Despite AIP’s withdrawal, other geoengineering efforts continue. U.S.-based Bright Ice Initiative, founded by AIP’s Leslie Field, is testing similar techniques on glaciers in Iceland and India. Meanwhile, UK startup Real Ice is exploring ways to thicken Arctic ice using seawater. However, concerns persist, with studies suggesting some of these methods may worsen ice loss.

Internationally, more than 190 countries have signed a moratorium on geoengineering experiments, but dozens of tests continue worldwide, including ocean fertilization and solar radiation management. Critics warn of the risks, while proponents argue these technologies could be key in addressing climate change.