Christopher Hohn’s activist hedge fund TCI has outlined plans to punish directors of companies that fail to disclose their carbon dioxide emissions in a move that underlines rising investor concerns over climate change and the pressure on boardrooms to respond.

TCI has warned Airbus, Moody’s, Charter Communications and other companies to improve their pollution disclosure or it will vote against their directors and called for asset owners to fire fund managers that did not insist on climate transparency, according to letters seen by the FT. 

“Asset owners should fire asset managers that do not require such disclosure,” Sir Christopher said. He also accused BlackRock, the world’s largest asset manager, of “greenwash” because it does not require emissions disclosures.