[resoluteteeth]

The abstract question of whether a higher or lower temperature would result in more habitable land (assuming, say, a gradual change over a million years) is completely 100% irrelevant to the issue of climate change.

A fast enough change will:

- Make places where large numbers of people currently live uninhabitable due to temperature and sea levels

- Kill off most plants and animals because the ones in a given place won't be adapted to the new climate, even if theoretically the climate in other places would now be suited to them, in a way that will take millions of years to recover from.

Simply saying "warmer is better" is utterly missing the point.

[crypot]

There has been a 15000 thousand year trend, where a warming planet has resulted in more biodiversity on earth.

Where is the evidence that the trend is ending?

[AnimalMuppet]

The rate matters.

An airliner lands on a runway and smoothly decelerates from 150 MPH to zero over 10,000 feet. This is just fine.

An airliner does the same deceleration over 10 feet. Everyone on board dies in a huge fireball.

Even for neutral or beneficial changes, the rate matters.