299
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 05 Aug 2024
299 points (98.4% liked)
Climate - truthful information about climate, related activism and politics.
5243 readers
324 users here now
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
founded 1 year ago
MODERATORS
Lol.
In 50 years you'll be dead from the earth is on fire and uninhabitable poisoning.
Honestly I am of the opinion that climate change is far less of an existential threat to humanity than mutually assured destruction was. Ecosystems are gonna collapse and lots of people are going to die. I think the true climate change doomer pill isn't that it's too late and the world is doomed, it's that the people living in the global north will not make the sacrifices needed to stop the climate catastrophes that will happen in the global south. We could all go vegan tomorrow and cause the largest single decrease in greenhouse emissions. We could all stop buying products that are made unsustainably and unethically in countries that are supposedly no longer colonised. But we won't. No one will pay higher prices for the same products. No one will make an effort to change their lifestyle. And no one will care that other people, far away, will die because of it. Entire cultures will be erased and we will not lose sleep over knowing that we let it happen because it was easier than doing something about it.
Actually there is a serious risk that Earth turns into Venus. Perpetually self-reinforcing green house effect. All life on Earth, fried, for all eternity.
Edit: Well, until the sun blows.
I'm sorry, but no. There's not. Not only is there not a serious risk, there's not even a slight chance. Even if we burned every drop of oil and bit of coal and released all the methane deposits, the earth still wouldn't even be close to reaching the conditions required for runaway greenhouse effect. Not for about 2 billion years, when it's estimated the sun's output will have increased sufficiently to vaporize much of our oceans.
I get that climate change is serious - my graduate thesis centered around it and carbon cycling - but please don't spread bullshit. We have enough issues to deal with already without making up more. Please fact check yourself and others.
Relevant articles you should read:
Scoping of the IPCC 5th Assessment Report Cross Cutting Issues
Low simulated radiation limit for runaway greenhouse climates
The Runaway Greenhouse: implications for future climate change, geoengineering and planetary atmospheres
Can Increased Atmospheric CO2 Levels Trigger a Runaway Greenhouse?
Thank you. Wow. I was basing that on something I saw or thought I saw in Cosmos (the 1980s version with Carl Sagan). Perhaps I was stoned when watching it. There is little better than to watch one of the Cosmos series while stoned - or the autotuned versions by Melodysheep (on YouTube).
For anyone who wants a quicker read on the above: https://en.m.wikipedia.org/wiki/Runaway_greenhouse_effect
I shall have to revise my world view now. 🤯🤯🤯 Wow. I feel optimistic.
Tardigrades - they will likely survive then. And cockroaches, and other life. So even if we all + most animals die out, we will be like the dinosaurs, and life may indeed bounce back.
I mean... A shadow has been lifted from my soul.
Goddamn. I know it seems like I am joking but I am not.
Good news.
No worries! I get corrected on things all the time. Thanks for taking it constructively instead of saying choice things about my mother.
Want even better news? The earth totally isn't fucked! Humans might be, but life on earth will probably be alright.
Edit: I got in trouble with crazies when I said "fine" before, so let me elaborate - I mean life will likely survive and in sufficient variety to have no issue rebounding.
The last big extinction event we had was the Permian-Triassic Extinction Event. Almost 90% of species died out. We're not quite sure what caused it (probably volcanoes), but CO2 levels were nearly 6x higher than now, the oceans were sulfurous, acidic, and oxygen starved, and global warming was leagues beyond where we're at now. Life bounced back and we're not even close in severity.
So should we keep fighting climate change? Hell yeah! But it's not as dismal as it seems.
Isn't the carbon were releasing now from fossil fuels carbon that used to be in the atmosphere? What self reinforcing mechanisms will allow for temperatures roughly beyond what has already occurred, which still sustained life?
Briefly, they're wrong. I responded in detail above.
You are correct, what we're burning as fossil fuels is largely the remains of millions of years of vegetative and microbial life, altered due to heat, pressure, and time. Millions of years of time.
All that carbon making up those organisms was fixed from the atmosphere. While biological functions have been busy fixing CO2, volcanoes, the Earth's mantle, and even some geochemical processes release CO2. If not for biological fixation, the atmosphere's CO2 content would be higher.
I don't believe you