[fritztastic]

It's not just about temp change and ocean levels- it's the shifts in climate affecting ecosystems (for example, speeding up desertification in some places and bringing extreme weather to others). Sure, people can move inland, but moving inland isn't going to help the ecosystems. Humans are very adaptable, we have technology and skills to handle rapidly changing parameters- other organisms can't. Changes of salinity in water, drier soil, excessive rain, first/last frost, etc. are happening too fast and causing widespread destruction to and collapse of ecosystems worldwide- the affected flora/fauna aren't like us- they simply won't survive.

[inkblotuniverse]

Good; natural ecosystems re a moral hazard, anyway- a giant, self-perpetuating torture dungeon. If somebody created predator species, or botflies, or ringworms, you'd have them executed for crimes against nervous systems. I vote, then, to execute natural selection. It's our duty to save all living things capable of pain from their fates.