Global warming appears to have shifted into a faster gear. After removing the effects of El Niño, volcanic eruptions, and solar cycles, researchers found that the planet has warmed at roughly 0.35°C per decade over the past ten years, compared with just under 0.2°C per decade from 1970 to 2015. The acceleration, which becomes visible around 2013 to 2015, appeared across five major global temperature datasets with more than 98% statistical certainty.
Really depends on what happens with phytoplankton; if they can adapt well enough to survive the excessive heat. Some of them can but others are dying out. If we lose all of them, then everything that breaths oxygen is extremely fucked since they make ~70-80% of that oxygen. Then we only have plants and forests like the amazon to make O2 (and we all know how that ones going), and then we would also have to deal with the gasses produced by all the oceans on the face of the earth dying and everything in them rotting… if they’re not par-boiled.