The immediate problem is not sea-level rise, which will take hundreds of years for largest impacts [0]. Ocean acidification is already happening [1], and threa

The immediate problem is not sea-level rise, which will take hundreds of years for largest impacts [0]. Ocean acidification is already happening [1], and threaten ocean life. "When pteropod shells were placed in sea water with pH and carbonate levels projected for the year 2100, the shells slowly dissolved after 45 days. ... The last time the ocean pH was this low was during the middle Miocene, 14-17 million years ago. The Earth was several degrees warmer and a major extinction event was occurring." [2]. Also as oceans warm, CO2 absorption go down: "As the oceans warm, they will become less and less capable of taking up carbon dioxide. As a result, more of our carbon pollution will stay in the atmosphere, exacerbating global warming" [3]. [0] https://earthsky.org/earth/anticipating-future-sea-level-projections/ https://earthsky.org/earth/anticipating-future-sea-level-pro... [1] https://www.climate.gov/news-features/featured-images/ocean-acidification-today-and-future https://www.climate.gov/news-features/featured-images/ocean-... [2] https://www.noaa.gov/education/resource-collections/ocean-coasts/ocean-acidification https://www.noaa.gov/education/resource-collections/ocean-co... [3] http://www.lteconomy.it/en/articles-en/articoli/the-power-of-oceans-how-much-co2-are-they-able-to-absorb-2 http://www.lteconomy.it/en/articles-en/articoli/the-power-of... Phew! That was just the oceans, for starters!