The entire environment or biosphere will not die off with most species in a thermal maximum event.
Sure, it will; probably take 230,000 years to absorb all the pollution, and another 3 million to develop the number of species extant at the beginning of this interglacial epoch.
The initial stimulus for human overpopulation was the use of large then much larger amounts of fossil fuels to drive industrialization including agriculture and disposition of food. Techno and medical knowledge lead to tech to keep people alive while people did not control their lust and reproduction because most were too stupid and the techno medical thought they were doing good when they were not. The combination of the three, technology, over-breeding, industrialization with fossil fuels, has lead to the 2040s crash and the 2500 thermal maximum extinction of most but not all life.
Crowd tolerance also had a powerful effect on urbanization and more gross overpopulation with more industrialization to feed them.
Immorality of the masses lead to more pollution, trash, lust, and desires for worldly goods, greed, selfishness, increasing crime, and corrupt leadership.
We've got 9 years to reduce emissions from all sources 90%, to prevent thermageddon. If not, then all that will be left is undug fossils, and new life forms in millions of years. Maybe "intelligent" life will develop again. Hopefully they will be smarter environmentally.
from JauntyAlbotross; "Goodbye
Though it seems
now grimly show
(as my heart screams NO)
our growing population's
growing money addiction
to the global corporation
makes the death
of planet Earth