On the path we're on I don't think we'll have to worry too much about future generations.

The EU has already seeing 10,000 excess deaths from climate changed caused heat waves and this is a minuscule taste of what's to come.

A very large percentage of mass extinction events have their roots in increased atmospheric CO2, but all of them on dramatically increased time scales. The closest thing in the history of the planet to what's happening to day was PETM [0] and that was only a lessor extinction event because the Earth was already quite warm (for example, there was already no polar ice at the time).

0. https://en.wikipedia.org/wiki/Paleocene%E2%80%93Eocene_therm...

How many excess deaths from cold?