Climate-concerned investors set to vote on key environmental resolutions this week at Exxon and Chevron annual general meetings
Oil giant is strengthening agreement with FuelCell Energy in effort to pilot technology within two years
Coalition of state attorney-generals announce they will work together to investigate corporate 'climate fraud', as Massachusetts adds its weight to joint investigation into Exxon Mobil's climate-related disclosures
Agreement with biofuels developer will see the oil giant explore biodiesel production from sugars found in non-food sources
Fund manager says New York Attorney General's case against Exxon Mobil could mark turning point in financial climate risks
New York attorney general issues subpoena relating to allegations oil giant underplayed early warnings about climate change threat
However a split may be emerging in oil industry on whether to support government intervention
Oil and gas giants announce research partnerships to develop sustainable energy technologies and algae fuels
A series of new reports urges investors to beware of escalating stranded assets risks
Carbon Tracker says oil major is underestimating chances of global deal on climate, as Shell chief executive claims climate debate has gone to "la-la land"