The Earth's Temperature was 1.5deg Celsius higher 1500 years ago. We are still coming out of the Maunder Minimum. The whole thing is bait and switch for CFC's which were already banned. The Sun is the real culptrit in Climate Change. Carbon comes out of the atmosphere on a very regular basis as Acid Rain, or by plants. You are the Carbon they want to eliminate.

Well the problem is that it is not an isolated event. it was previously a very massive Black Hole. It consumed enough matter to become of a critical mass, and implode. The largest known Super Nova. Eventually something else will get that big again, and boom. No crunch, just swallowed by a passing Black Hole. The singularity, is not really accurate either. All the Matter consumed by the Black hole is stripped of its lightest particles, which may get lucky and spit out the polar jets. but any mass too large without enough speed will eventually become part of the neutron mass that we call a singularity. This is already a collapsed space compared to the Nucleus of an atom on Earth. Basically, there's no space between Particles. When the added Weight of Matter Becomes too great for the space inside those particles to collapse again further under pressure. The Big Bang Unleashes another Cluster of Galactic Debris.