由于冰融化,南大洋吸收的二氧化碳比预期的多,但长期稳定尚不确定。 The Southern Ocean is absorbing more CO2 than expected due to ice melt, but long-term stability is uncertain.

南大洋继续吸收大量大气二氧化碳,这与早先的气候模型预测相悖,因为冰雪融化和降水增加了淡水。 The Southern Ocean continues to absorb large amounts of atmospheric carbon dioxide, defying earlier climate model predictions, due to increased freshwater from melting ice and precipitation. 这一更新加强了海洋分层,防止了碳含量丰富的深水上升并将二氧化碳埋入更深层。 This freshening strengthens ocean stratification, preventing carbon-rich deep water from rising and trapping CO2 in deeper layers. 虽然这一进程维持了该地区的碳吸收能力 — — 约占海洋碳吸收量的40%,但随着气候变化的进展,长期稳定仍不确定。 While this process has sustained the region’s carbon sink capacity—responsible for about 40% of oceanic carbon uptake—the long-term stability remains uncertain as climate change progresses.