IHS Markit vice chairman Dan Yegin says the oil and gas sector has greatly speeded up efforts on carbon and is rapidly recalibrating itself to the new global benchmark--net zero carbon by 2050. Hydrogen, carbon capture, and innovation are the big cross-cutting themes that have jumped out at this year's summit. Lowering emissions, not nixing fossil fuels An overriding theme that has emerged at the conference is that Big Oil wants to focus not so much on curtailing oil and gas production but rather on mitigating the impact of its carbon and greenhouse gas emissions. According to Exxon Mobil CEO Darren Woods and Occidental Petroleum CEO Vicky Hollub, reducing carbon emissions from fossil fuels and not the actual use of fossil fuels, offers the best way to combat climate change.