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These countries are not signatories to the Treaty, but wish to stress their concern about the impacts of increasingly rapid climate warming on the Antarctic ice sheet, and the consequences of its melting ice for low-lying nations and small island states. [...] “An increasing number of studies of growing sophistication published in the past year are converging on temperatures between 1.5°C and 1.8°C as critical thresholds triggering irreversible loss of portions of the ice sheet, especially the West Antarctic Ice Sheet (WAIS), but also portions of East Antarctica”, said Dr. [...] However, there is a growing awareness that the greatest human consequences of climate changes affecting the Antarctic will be felt not by the small research and tourism communities active on the continent but by vulnerable millions living in low-lying countries and regions around the globe. [...] For the first time since the signing of the Antarctic Treaty in 1961, one whole day of the 12-day meeting will be devoted to Climate Action. [...] Lescarmontier will present the latest information on the global consequences of the related key issue of acidification of the Southern Ocean, which has major consequences for fisheries and food security.