What this means in practice is that we enter a minefield where we start to lose major ecosystems as temperatures continue to rise.
This makes it incredibly important to do everything we can to limit the amount of additional warming we see; each 1/10 of a degree adds to the risk.
One of the most shocking things about this climate change so far is that the summer is no longer a season to look forward to. For the last two years the skies have been white, orange or brown and the air has smelled of smoke for large stretches of the summer and on into the fall. Evidently the powers that be will do nothing unless they are made uncomfortable, and making them uncomfortable means more than polite protesting.