Fossil-friendly communications companies are represented on some national delegations to the climate talks, DeSmog analysis finds.

The elite agency has been going all out to win positive press for the hosts of the UN climate talks.

Findings by InfluenceMap highlight mismatch between communication agencies' climate pledges, and their work on behalf of major polluters.

London Assembly member cites a DeSmog investigation that documented hundreds of fossil fuel ads on the city’s transport network.

Scope of corporate influence underscores concerns the technology will be used to prolong demand for planet-heating natural gas.

MetropolitanRepublic enlisted social media influencers to promote giant oil project as climate campaigners suffered beatings and arrests.

Sadiq Khan faces calls to ban fossil fuel industry messaging from tube stations and buses.

Working for polluters and clean air charities follows an adland pattern of double standards, campaigners say.

Antonio Guterres warns creative agencies that fossil fuels are "toxic for your brand.”

Insiders fear that conflicts of interest on the boards of the six largest communications firms are quashing effective climate action.