I think ya'll are missing a big point here. Isn't climate change a symptom of a larger problem?
7 billion living on a planet meant for 200M - 1 Billion.
What could go wrong?
Consumption of all the world's natural resources? Destruction of our fragile environmental ecosystem? A lifestyle based on consumption of these resources that destroy said environmental ecosystem?
For example, if the Amazon forests are cut/burnt down, the planet loses 6% of its oxygen-producing capabilities. The Amazon forest helps regulate the weather - keeps temperatures cooler, oceans cooler, lands moist, produces rain, drives the gulf stream, and a lot of unrefutable scientific facts on how it influences weather in the America's. That's just science. Kinda cool. Very boring.
If our oceans get too warm, the phytoplankton that produces 50% of the world's oxygen will die. At 15% of oxygen in the air (20.1% is normal), people start to suffer from hypoxia.
At 10% oxygen, mass extinction. If you can't breathe, you die right?
To complicate the oxygen issue, we have these outliers of sensitive ecosystems...
If the trees die, the planet dies.
If the bees die, the planet dies.
If the birds die, the planet dies.
If the phytoplankton dies, the planet dies.
If we pollute the ocean and environment too much, and one of those occur, the planet dies.
And if the planet dies, we die. And you can't wrap yourself in money to help breathe if the planet cannot produce oxygen.