CEO of biggest carbon credit provider to resign after claims offsets worthless

The head of the world’s leading carbon credit certifier has announced he will step down as CEO next month.

It comes amid concerns that Verra, a Washington-based nonprofit, approved tens of millions of worthless offsets that are used by major companies for climate and biodiversity commitments, according to a joint Guardian investigation earlier this year.

In a statement on LinkedIn on Monday, Verra’s CEO, David Antonioli, said he would leave his role after 15 years leading the organisation that dominates the $2bn voluntary carbon market, which has certified more than 1bn credits through its verified carbon standard (VCS).

Antonioli thanked current and former staff, and said he was immensely proud of what Verra had accomplished through the environmental standards it operates. He did not give a reason for his departure and said he would be taking a break once he left the role. Judith Simon, Verra’s recently appointed president, will serve as interim CEO following Antonioli’s departure on 16 June.

“The trust you placed in Verra and myself in my role as CEO has meant a lot, and…