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We're Creating a Perfect Storm of Unprecedented Global Warming (popsci.com)

An anonymous reader shares a report: If we do nothing to reduce our carbon dioxide (CO2) emissions, by the end of this century the Earth will be as hot as it was 50 million years ago in the early Eocene, according to a new study out today in the journal Nature Communications. This period -- roughly 15 million years after dinosaurs went extinct and 49.8 million years before modern humans appeared on the scene -- was 16F to 25F warmer than the modern norm. [...] During the Eocene, it took more atmospheric CO2 to influence temperatures than it does today. In fact, if we don't change our behavior, 2100 will be as hot as the Eocene with much less atmospheric CO2 than was present at the time. A hotter sun means we get more bang for our CO2 buck. "Climate change denialists often mention that CO2 was high in the past, that it was warm in the past, so this means there's nothing to worry about," said lead study author Gavin Foster, a researcher in isotope geochemistry and paleoceanography at the United Kingdom's University of Southampton. "It's certainly true, that the CO2 was high in the past and that it was warm in the past. But because the sun was dimmer, the climate wasn't being forced as much [as it will be] in the future if we carry on as we are."

5 of 620 comments (clear)

  1. Re:I also performed a study. by DickBreath · · Score: 5, Insightful

    Some people say the sun rises in the East.
    Other people say the sun rises in the West.
    Which is right?
    Or maybe the truth lies somewhere in between?
    Teach the controversy!

    --

    I'll see your senator, and I'll raise you two judges.
  2. Re:and that would be a bad thing... because? by mean+pun · · Score: 5, Insightful

    If we do nothing to reduce our carbon dioxide (CO2) emissions,

    Short of completely wrecking the global economy or starting a major nuclear war, no government policy is going to have an appreciable effect on climate.

    I find it interesting that many pooh-poohers have suddenly switched from no, not true, not happening to nothing can be done. I mean, this is something like the fourth or fifth one in this thread, whereas even a week ago this was an unusual response. Was there a focus group somewhere that said this is more effective? Didn't your marketing people think this message is a bit too dark for the average mark?

  3. Re:Sky is Falling! by GameboyRMH · · Score: 5, Insightful

    Strongly disagree. We have the technology, money, and the bit of willpower needed to fix it. I don't like to believe "the future will solve it" but there's a chance that the prices of renewable vs. fossil energy may even fix global warming for us. The only things standing in the way of victory are denialists, their fossil fuel company puppetmasters, and defeatists like you.

    --
    "When information is power, privacy is freedom" - Jah-Wren Ryel
  4. Re:I wish I could trust "academic experts". by archer,+the · · Score: 5, Insightful

    Really? We're going to mark an evidence-less rant against researchers as +5, Interesting?

    Look around your life. How many people do you know? How many of them would stab you in the back for a buck? I hope that number would be very small. If it isn't, you're in the wrong place.

    I went to a school focused on science. Of the number of folks I hung out with, extremely few (less than 10%) struck me as idiots, cheats, or liars. The rest I'd trust with my life. I find it extremely hard to believe I went to the only university where the majority of students were honest, dependable folks.

    I'm sure as heck not going to trust the trillion dollar fossil fuel industry whose entire existence is on the line.

  5. Re:Bet it happens before 2100 by Peeet · · Score: 5, Insightful

    Acid Rain and Ozone Depletion have been avoided SPECIFICALLY BECAUSE the flappy heads were flapping and we listened to their flapping and made changes to negate the damage we were doing. As opposed to these days...

    And the real problem is that the averages of what scientists are saying are longer term than people's attention span. Regular people don't think a few inches of ocean rising or a few degrees of average temperature are a big deal, but they can't comprehend that it's because of how QUICKLY the changes are happening, not how MUCH it's changing. Unfortunately, the only way to get people to pay attention to humanity-ending long-term (for humans aka short term for nature) problems is to be alarmist about them.

    And we REALLY need to stop talking about "saving the Earth". The Earth will be fine, we couldn't destroy it if we tried. It'll be spinning along around the sun way after we're gone. It's HUMANS and lots of animals / plants that will be wiped off the planet if we don't drastically change how we interact with nature.