Department of Oceanography, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC; Research Center for Environmental Changes, Academia Sinica, Taipei 11529, Taiwan, ROC.
Department of Oceanography, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC.
Mar Pollut Bull. 2024 Sep;206:116664. doi: 10.1016/j.marpolbul.2024.116664. Epub 2024 Jul 9.
Taiwan has pledged to achieve net-zero carbon emissions by 2050, but the current extent of carbon sinks in Taiwan remains unclear. Therefore, this study aims to first review the existing nature-based carbon sinks on land and in the oceans around Taiwan. Subsequently, we suggest potential strategies to reduce CO emissions and propose carbon dioxide removal methods (CDRs). The natural carbon sinks by forests, sediments, and oceans in and around Taiwan are approximately 21.5, 42.1, and 96.8 Mt-CO y, respectively, which is significantly less than Taiwan's CO emissions (280 Mt-CO y). Taiwan must consider decarbonization strategies like using electric vehicles, renewable energy, and hydrogen energy by formulating enabling policies. Besides more precisely assessing both terrestrial and marine carbon sinks, Taiwan should develop novel CDRs such as bioenergy with carbon capture and storage, afforestation, reforestation, biochar, seaweed cultivation, and ocean alkalinity enhancement, to reach carbon neutrality by 2050.
台湾承诺到 2050 年实现净零碳排放，但目前台湾的碳汇总量仍不清楚。因此，本研究旨在首先回顾台湾周边陆地和海洋现有的基于自然的碳汇。随后，我们提出了减少 CO2 排放的潜在策略，并提出了二氧化碳去除方法（CDRs）。台湾及其周边地区森林、沉积物和海洋的自然碳汇分别约为 21.5、42.1 和 96.8 Mt-CO y，明显低于台湾的 CO2 排放量（280 Mt-CO y）。台湾必须考虑制定扶持政策，采用电动汽车、可再生能源和氢能等脱碳策略。除了更准确地评估陆地和海洋碳汇外，台湾还应开发新型 CDRs，如碳捕获和封存的生物质能、造林、再造林、生物炭、海藻养殖和海洋碱度增强，以实现 2050 年的碳中和目标。
