Carbon CaptureExxonMobil signs its third external carbon capture deal in USSupermajor will capture 800,000 tonnes per year from steel producer NucorExxonMobil is dedicating 40% of its $17 billion in low carbon investments through 2027 to reducing customer emissionsPhoto: PHIL MCCARTEN/CORPORATEEVENTIMAGES/UPSTREAMNaomi KlingeHouston