New research reveals how Dentsu, Havas, Interpublic Group, Omnicom, Publicis Groupe, and WPP cast themselves as climate champions.

The groups have filed an OECD complaint against the world’s largest advertising and PR firm, saying its work enables major polluters to continue harming environmental and human health.

A look back at the year’s manipulative messaging.

Bank has been bigging up reductions in “operational emissions” while continuing to finance the fossil fuel industry.

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

Fossil fuel companies are spending millions on campaigns to deflect attention from the need to stop drilling for more oil and gas.

Disclosure by the French communications group underscores growing calls for climate accountability in the advertising and public relations industry.

New documents show how a deceptive PR strategy pioneered in 1950s California first exposed the risk of climate change and then helped the industry deny it.

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

Former ExxonMobil climate scientist Lindsey Gulden: "It was after I was fired for reporting a garden variety fraud that I really sat back and thought about the implications for climate change."