1004
We're not going to terraform Mars, but we're doing a good job of venusforming Earth.
(fediscience.org)
this post was submitted on 15 Nov 2024
1004 points (98.9% liked)
Showerthoughts
30000 readers
709 users here now
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
Rules
- All posts must be showerthoughts
- The entire showerthought must be in the title
- Avoid politics
- 3.1) NEW RULE as of 5 Nov 2024, trying it out
- 3.2) Political posts often end up being circle jerks (not offering unique perspective) or enflaming (too much work for mods).
- 3.3) Try c/politicaldiscussion, volunteer as a mod here, or start your own community.
- Posts must be original/unique
- Adhere to Lemmy's Code of Conduct
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Everything find equilibrium eventually. I'm sure any limits for a runaway situation depend on a lot of factors, but their ceilings are all far above anything we could tolerate. Runaway doesn't mean there's no point to level out, only that at the time it's not controllable and escalating fast.
The last "runaway" situation the Earth had was called the Paleocene–Eocene Thermal Maximum (PETM) 56 million years ago and globally had a 5-8 degree Celsius rise over thousands of years. That might be a good example of a natural situation and its limits. Keep in mind the differences in rate, we're increasing the global temperature faster than the PETM (or anything we've found in geological history) so we don't know how that faster rate will act in determining a peak. There's theories of pushing the Earth into a hothouse world that would have its own equilibrium that is far hotter than we can survive.