Santos says it’s captured and stored 340,000 tonnes of CO2 and is on track to significantly expand operations — but an energy expert says in the scheme of Australia’s 500 million tonnes of yearly emissions, it’s more “PR exercise” than climate change solution. Santos says it’s captured and stored 340,000 tonnes of CO2 and is on track to significantly expand operations — but an energy expert says in the scheme of Australia’s 500 million tonnes of yearly emissions, it’s more “PR exercise” than climate change solution. Greenhouse Gases, Oil and Gas Latest business news