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

David Antonioli to step down from Verra, which was accused of approving millions of worthless offsets for major companies

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 non-profit, 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.