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Climate Change Report Actually Understates Threats (thebulletin.org)

"Dire as it is, the latest IPCC report is actually too optimistic," writes Slashdot reader Dan Drollette. "It ignores the risk of self-reinforcing climate feedbacks pushing the planet into chaos beyond human control. So says a team of climate experts, including the winner of the 1995 Nobel for his work on depletion of the ozone layer." From their article: These cascading feedbacks include the loss of the Arctic's sea ice, which could disappear entirely in summer in the next 15 years. The ice serves as a shield, reflecting heat back into the atmosphere, but is increasingly being melted into water that absorbs heat instead. Losing the ice would tremendously increase the Arctic's warming, which is already at least twice the global average rate. This, in turn, would accelerate the collapse of permafrost, releasing its ancient stores of methane, a super climate pollutant 30 times more potent in causing warming than carbon dioxide.

By largely ignoring such feedbacks, the IPCC report fails to adequately warn leaders about the cluster of six similar climate tipping points that could be crossed between today's temperature and an increase to 1.5 degrees -- let alone nearly another dozen tipping points between 1.5 and 2 degrees. These wildcards could very likely push the climate system beyond human ability to control. As the UN Secretary General reminded world leaders last month, "We face an existential threat. Climate change is moving faster than we are.⦠If we do not change course by 2020, we risk missing the point where we can avoid runaway climate change, with disastrous consequences."

In related news, a court in The Hague "has upheld a historic legal order on the Dutch government to accelerate carbon emissions cuts, a day after the world's climate scientists warned that time was running out to avoid dangerous warming. Appeal court judges ruled that the severity and scope of the climate crisis demanded greenhouse gas reductions of at least 25% by 2020 -- measured against 1990 levels -- higher than the 17% drop planned by Mark Rutte's liberal administration. The ruling -- which was greeted with whoops and cheers in the courtroom -- will put wind in the sails of a raft of similar cases being planned around the world, from Norway to New Zealand and from the UK to Uganda."

Meanwhile, a new article in GQ cites estimates that more than 70 percent of global emissions come from just 100 companies, complaining that "there is no 'free market' incentive to prevent disaster."

15 of 396 comments (clear)

  1. Re: It ignores - what is not happening? by Anonymous Coward · · Score: 5, Informative

    Um, hard to know where to start, basically your entire post is disconnected from actual facts. The UN report was dire, but didn't include the effects of methane locked in permafrost.

    https://www.vice.com/en_us/article/qv9nm7/unpacking-the-devastating-un-report-on-climate-change

  2. Re:Getting sick of climate change hyperbole by HiThere · · Score: 5, Insightful

    Idiot. Every single IPCC report has understated the danger because they didn't want to be accused of being scare mongers. They did this by suppressing the more extreme projections in favor of the less extreme ones. And this information is publicly available in the articles about how they put together the reports.

    It is true that they also suppressed the extremely understated projections, but their influence on mean values would have been considerably less. That's the way calculations of mean deviation work.

    The IPCC has intentionally tried to be only somewhat alarmist rather than accurately reporting what the projections indicate. They hoped in this way to gain political acceptance that there was a real problem. I feel this strategy has backfired, with many claiming that they're alarmist anyway, and most just ignoring them. But they were trying to be cautious.

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    I think we've pushed this "anyone can grow up to be president" thing too far.
  3. Al Gore isn't somebody you go to for science by rsilvergun · · Score: 4, Insightful

    and his hyperbole doesn't exactly help. But you're strawmaning. The article isn't predicting no ice in the Arctic, it's saying the same thing every scientific report does: global temps are rising by a few degrees and that will have far reaching impacts on weather, droughts and our ability to grow food.

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  4. Ohhhh, today's popcorn article has landed! by Opportunist · · Score: 5, Insightful

    Grab a bag and pass the soda, this is gonna be great. What excuses will we hear today? How are we going to justify ignoring science and instead trust the spin of the industry this time?

    I really hope for something new, just sticking fingers into ears and going "lalala, I can't hear you" is getting old.

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  5. It's 2018 and I still can't buy Soylent Green by Crashmarik · · Score: 3, Informative

    You might recall back in the 60 that by the year 2000 the U.S. would have over 300 million people and we would be starving and eating each other ?

    https://en.wikipedia.org/wiki/...

    Well it's 2018 and a 1/3rd of the world is now Obese ( http://www.healthdata.org/news... ) Small child must be very filling.

    UN Predicts 50 Million Climate Refugees by 2010

    Six years ago, the United Nations issued a dramatic warning that the world would have to cope with 50 million climate refugees by 2010. But now that those migration flows have failed to materialize, the UN has distanced itself from the forecasts. On the contrary, populations are growing in the regions that had been identified as environmental danger zones.

            It was a dramatic prediction that was widely picked up by the world’s media. In 2005, the United Nations Environment Programme (UNEP) and the United Nations University declared that 50 million people could become environmental refugees by 2010, fleeing the effects of climate change.

            But now the UN is distancing itself from the forecast: “It is not a UNEP prediction,” a UNEP spokesman told SPIEGEL ONLINE. The forecast has since been removed from UNEP’s website. —Spiegel Online

    2000 no more snow in the UK

    In March 2000, , “senior research scientist” David Viner, working at the time for the Climatic Research Unit (CRU) at the University of East Anglia, told the U.K. Independent that within “a few years,” snowfall would become “a very rare and exciting event” in Britain. “Children just aren’t going to know what snow is,” he was quoted as claiming in the article, headlined “Snowfalls are now just a thing of the past.”

    1864 Father of American Environmentalism predicts imminent destruction of environment

    As early as 1864 George Perkins Marsh, sometimes said to be the father of American ecology, warned that the earth was ‘fast becoming an unfit home for its “noblest inhabitant,”’ and that unless men changed their ways it would be reduced ‘to such a condition of impoverished productiveness, of shattered surface, of climatic excess, as to threaten the deprivation, barbarism, and perhaps even extinction of the species.’

    –Google Books Readings In Environmental Impact page 111

    1. Re:It's 2018 and I still can't buy Soylent Green by Pseudonym · · Score: 4, Insightful

      In 1968, Erich von Daniken published "Chariots of the Gods" and a lot of people read that too.

      The interesting question is what experts think in total, the consensus as well.as the spread. You don't just get to pick the sensationalist outliers at either end.

      --
      sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});
  6. Re:Go Poland go! (to hell) by 110010001000 · · Score: 3, Informative

    Don't feel so bad: Germany also increased their coal based power generation.

  7. I'll take this one! by hey! · · Score: 5, Informative

    But first, let me demonstrate what a pile of horseshit you just linked to.

    The article was written in 2014, based in data through 2013, and talks about a "15 year pause in global warming". 2013 - 15 = 1998. 1998 when it happened was the hottest year ever by a huge margin --an outlier. It was also a massive El Niño year, and El Niño is a weather event that produces unusually warm years..

    This is a classic technique of statistical misrepresentation: cherry picking a baseline to obtain the comparison you want. If you start in 1997 or 1999, the "disappearance" of warming disappears. If you use a moving average, even just a *two year* moving average, the disappearance also disappears. In other words, the supposed pause is just statistical horseshit.

    Cherry picking a baseline year is possible because weather isn't climate. Some years are warmer than the underlying climate trend and others are cooler than the trend. Sometimes you have a run of several years that are over or under, and in fact this is normal with real data. It's just like flipping a coin 13 times. It's normal to get runs of heads and tails, even with a fair coin.

    El Niños, which produce warm years, and La Niñas, which produce cool years, are not predicted by climate models because they are both random weather events, like flipping a coin.

    Of the 15 years of the Horseshit Pause, six were La Niña event years, a number of them particularly strong ones, however some of them were record warm years for La Niñas. Five were El Niño years, but relatively weak ones. So basically over the Horseshit Pause, we had a run of events which produce cooler weather than the underlying climate trend; even so the Horseshit Pause was the warmest decade on the instrumental record.

    Now you extend the Horseshit Pause period to include the following four years, you happen to get the four hottest years on the instrumental record: 2016, 2015, 2017, 2014. Note that 2016 and 2015 were El Niño, but 2017 was a La Niña year and should have been a cool one.

    More to the point, if you make the run of years just a little bit longer supposed inconsistency of the climate models from the weather record disappears.

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    1. Re:I'll take this one! by hey! · · Score: 4, Insightful

      I can't speak to Gore's claims, but the IPCC AR5 report from the same year predicted the first ice-free summer to be around 2050. The IPCC reports tend to be middle of the road and conservative.

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    2. Re:I'll take this one! by religionofpeas · · Score: 5, Informative

      Well, the claim is that unless we reduce our CO2 output then we will see temperatures rise. If temperatures keep rising then at some point 1998 will no longer be the maximum. It's been the maximum for 20 years now, when can we expect this to no longer be true?

      The 1998 peak was tied again in 2002, and has been broken in 2005, 2007, 2009, 2010, 2013, 2014, 2015, 2016, and 2017. See here for detailed table: https://data.giss.nasa.gov/gis...

      The annual anomaly (Jan through Dec) in 1998 was +0.62 degrees C. The highest year so far is 2016, with +0.99 degrees C. We haven't been under the 1998 value since 2011.

    3. Re:I'll take this one! by robsku · · Score: 4, Insightful

      The thing with you climate sceptics is that if there's even one false prediction or one badly done study then for the next n+1 years that is ALL you can talk about. And it doesn't even matter if your argument is debunked, you guys will still keep repeating it.

      And that's how your kind has lost any and all credibility in my eyes.

      --
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    4. Re:I'll take this one! by robsku · · Score: 3

      It's because he gets these claims and numbers only from climate change sceptics articles. I love it when they get faced by the actual facts, but I have very little confidence that their opinions are swayed by pesky little inconveniences, such as facts.

      In the end it comes to them not wanting to even have to consider any alternative, as it would be too scary. And THAT is VERY scary for the rest of us, especially as there are political leaders that think like them.

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  8. Re:Getting sick of climate change hyperbole by angel'o'sphere · · Score: 3, Interesting

    Sadly, this may just be what ends up killing civilization. Not their fault, this type of threat is unique in human history.
    Yes and no. Considering the "flood myths" all over the planet, and that during the last "ice age" the sea level rose (min.) three times about 10m "over night", and that the total sea level rise was over 100m and happened during less than 1000 years, it is not that unique. We just don't know anything about mankind before the "ice age".

    Look at this map: https://static.wixstatic.com/m...

    (Sorry, can not find the site where I found this the first time. There they had a side by side comparission of the current world with that picture)

    If the world was settled at that time with a high level civilization, lets say on the level of UK around 1800, and mostly living around the costs and lower level areas, 99% of the world population would have died due to the melting ice.

    Do you see how much bigger India is, Australia is, Indonesia connected with Australia and a "continent" and not a chain of islands? Japan connected with China, China expanding to the south east, South America dramatically bigger. England connected with Europe. You nearly could walk over to Iceland :D
    Thousands more islands in the pacific. What is not visible, the Mediterranean sea is dry land, likely the red sea, too.

    Or check this: https://www.donsmaps.com/icema...

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  9. Re:It ignores - what is not happening? by gtall · · Score: 4, Insightful

    Really? 95% of climate scientists, ones that actually have degrees that pertain to climate science instead of idiots like Sen. Inholfe, have all agreed on an agenda? And precisely what is this agenda? Don't hold back, lay it on us. Be sure to reference real scientific journals...unless, of course, you believe they too are in on some con.

    Stop watching TV, it is bad for you.

  10. Re: Getting sick of climate change hyperbole by robsku · · Score: 3

    You know, the ozone layer threat was (and still is, although it's slowly recovering) a real thing, and only because we eventually got every single country to agree and ban certain chemicals, it was slowed down and finally started to recover (giving the clueless know-it-all's a chance to claim the threat was a hoax; sometimes I wonder if we should have just let it continue and not having to hear this BS now, although not seriously).

    "In 1976 atmospheric research revealed that the ozone layer was being depleted by chemicals released by industry, mainly chlorofluorocarbons (CFCs). Concerns that increased UV radiation due to ozone depletion threatened life on Earth, including increased skin cancer in humans and other ecological problems[4], led to bans on the chemicals, and the latest evidence is that ozone depletion has slowed or stopped."

    Today, not even most climate sceptics wouldn't claim that the "scare" was unfounded, false or hoax... But then there are total nutcases, like you apparently, who prefer to not actually read anything outside of their prejudices.

    Read a bit for a change:
    https://en.wikipedia.org/wiki/Ozone_layer#Depletion

    --
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