Reasons To Be Cheerful?

Research suggests that ice shelf melting over Antarctica's Amundsen Sea is 'locked in'. This means that, even if human climate-changing emissions were significantly reduced, this melt would continue for the rest of the current century (https://www.theguardian.com/world/2023/dec/31/red-alert-in-antarctica-the-year-rapid-dramatic-change-hit-climate-scientists-like-a-punch-in-the-guts). This dramatic ice loss is already having a devastating effect on animals, such as penguins and seals, in this polar region. It will also have major impacts on global weather patterns and, of course, sea levels. This scenario sounds to me, suspiciously like one of those 'tipping points' (points of no return), we humans were supposed to strive to avoid?