Revealed: Google made large contributions to climate change deniers

Firm's public calls for climate action contrast with backing for conservative thinktanks

• The obscure law that explains why Google backs climate deniers

Google has made "substantial" contributions to some of the most notorious climate deniers in Washington despite its insistence that it supports political action on the climate crisis.

Among hundreds of groups the company has listed on its website as beneficiaries of its political giving are more than a dozen organisations that have campaigned against climate legislation, questioned the need for action, or actively sought to roll back Obama-era environmental protections.