Petrobras has co-opted social media stars who should be exposing its greenwashing, not taking part in it, critics say.

For EU lawmakers to be talking with the “world’s loudest climate deniers” is a scandal, says Austrian Greens MEP Lena Schilling.

Unsubstantiated allegations against top climate advocates part of campaign to “discredit and defund” civil society actors in EU, says transparency campaigner.