350 Singapore presents a brief overview of Carbon Capture and Sequestration (CCUS) as part of the 2019 NCCS public consultation feedback on reducing Singapore's greenhouse emissions.
CCUS is the technique of burning fossil fuels in a way that does not contribute to greenhouse gas accumulation in the atmosphere by capturing the carbon dioxide and sequestering it in a long term storage location.
Of Singapore's greenhouse gas inventory 60% is from manufacturing. 6.5% of Singapore's GDP can be attributed to the petrochemical industry on Jurong and Bukom Island and employs up to 25,000 workers directly and indirectly. Business-as-usual for Singapore means identifying solutions that would have the least disruptive impact to the people from these industries. CCUS offers a bridge technological solution for transitioning these industries long term while meeting Paris Agreement targets in the short term. Based on literature sources CCUS may be a cost-effective solution for carbon price in the range of USD $40-80/ton CO2.
In Singapore climate change is often referred to as a “wicked” problem. Any city which is fully responsible for reducing its own emissions will be faced with the difficult challenge of a decarbonization pathway that is both land and cost efficient and minimally disruptive to BAU. The most cost effective solutions often require large land areas. For cities like Singapore which are land constrained, leveraging land based solutions will inevitably involve more interdependency on neighboring countries, which may be difficult to achieve at the speed required given historical track record on regional diplomatic cooperation. Without these land based solutions, the city may be faced with the uncomfortable choice of compromises between costs, autonomy and minimal disruption to business-as-usual.
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