Not sure why you’re being downvoted. Glaciers formed over millennia. If they melt, they’re gone, even if we drop CO2 to pre-industrial levels. The Antarctic ice sheet is millions of years of snow that fell at the rate of a few inches a year and just didn’t melt. If significant portions of that fall off and melt, it’ll be millions of years more for the water it adds to the oceans to cycle back to the ice sheet again. The changes we have made will not be reversed automatically or in many cases at all.
Do you have any insight into getting Linux to play nice with the different components of fusion drives? I have an old iMac and Mac mini both with Fusion Drive and after installing fedora or Ubuntu the SSD is seen and mounts fine but while the HDD is seen it doesn’t mount at startup despite setting it to mount at startup. I’d like to use these machines for some archiving and media hosting but that’s difficult if I can’t reliably access the much higher capacity drives.