Critics accuse leading firms of sabotaging climate action but say data increasingly being used to hold them to account Critics accuse leading firms of sabotaging climate action but say data increasingly being used to hold them to account Just 32 fossil fuel companies were responsible for half the global carbon dioxide emissions driving the climate crisis in 2024, down from 36 a year earlier , a report has revealed. Saudi Aramco was the biggest state-controlled polluter and ExxonMobil was the