Regulators in South Dakota on Tuesday denied Summit Carbon Solutions' permit application to run about 700 miles (1126 km) of its carbon dioxide pipeline through the state, the second time the state has spurned the company hoping to build the world's largest carbon pipeline aiming to combat climate change.

It was the 2nd South Dakota denial for Summit, which has been seeking a permit to build a portion of its proposed $9B pipeline through SD since 2022.

The SD Public Utilities Commission has denied Summit Carbon Solutions' permit application for its CO2 pipeline for a second time in three years.