> is really the only major threat

Soil degradation, ocean acidification, basic resource scarcity (running out of copper or phosphates for example)

Others which come to mind that are "fixable" through technology vs psycho-cultural features:

Overfishing - > global enforceable legislation of the seas Meat consumption - > high quality meat analogs Plastics endocrine disruption - > improved discovery of protein folding to discover problematic endocrine disruptors Batteries - > novel types of battery chemistry Lack of Water - > drip irrigation, desalination (desertification itself can't be per se fixed) Lack of Energy longterm - > SPARK, ARC nuclear type reactors

Even soil degradation could be tackled with GMO crops and improved nitrates/phosphates, it would not be ideal because these also generate toxic algae blooms on river deltas but "would make do". Ocean acidification is the scary one just like most other effects related to global warming