evidence: In many regions, warming has already surpassed 1.5 degrees Celsius above pre-industrial levels. More than one-fifth of all humans live in regions that have already seen warming greater than 1.5 degrees Celsius in at least one season. Climate-related risks were found to be generally higher at lower latitudes and for disadvantaged people and communities. [...] Slowing the rate of sea level rise would allow humans and ecological systems to better adapt, particularly in small islands, low-lying coastal areas and deltas. [...] Loss of sea ice at 1.5 degrees Celsius warming will impact the habitats of many organisms, from phytoplankton, to marine mammals like polar bears and whales, especially in the Arctic Ocean and the Western Antarctic Peninsula.