Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
Earth

Thousands of Scientists Warn Climate Tipping Points 'Imminent' (aljazeera.com) 311

Thousands of scientists have repeated calls for urgent action to tackle the climate emergency, warning that several tipping points are now imminent. From a report: The researchers, part of a group of more than 14,000 scientists who have signed on to an initiative declaring a worldwide climate emergency, said in an article published in the journal BioScience on Wednesday that governments had consistently failed to address "the overexploitation of the Earth," which they described as the root cause of the crisis. Since a similar assessment in 2019, they noted an "unprecedented surge" in climate-related disasters, including flooding in South America and Southeast Asia, record-shattering heatwaves and wildfires in Australia and the US, and devastating cyclones in Africa and South Asia.

For the study, scientists relied on "vital signs" to measure the health of the planet, including deforestation, greenhouse gas emissions, glacier thickness and sea-ice extent and deforestation. Out of 31 signs, they found that 18 hit record highs or lows. For example, despite a dip in pollution linked to the COVID-19 pandemic, levels of atmospheric CO2 and methane hit all-time highs in 2021. Greenland and Antarctica recently showed all-time low levels of ice mass and glaciers are melting 31-percent faster than they did just 15 years ago, the authors said. Ocean heat and global sea levels set new records since 2019, and the annual loss rate of the Brazilian Amazon reached a 12-year high in 2020. Echoing previous research, the researchers said forest degradation linked to fire, drought and logging was causing parts of the Brazilian Amazon to now act as a source of carbon, rather than absorb the gas from the atmosphere.

This discussion has been archived. No new comments can be posted.

Thousands of Scientists Warn Climate Tipping Points 'Imminent'

Comments Filter:
  • So (Score:5, Insightful)

    by wakeboarder ( 2695839 ) on Wednesday July 28, 2021 @12:44PM (#61630657)

    We need to go into damage control mode (building dikes, moving people away from coast ect)?

    • Re: (Score:2, Troll)

      If you’re a slashdot reader you just say all the scientists are wrong and somehow getting rich from climate change. If that’s true then how do I get in on this sweet deal?

      • Nice, generalization there. There are many readers and they don't all share the same view. I have seen comments that say that, but also comments like yours that don't. How you know what Slashdot readers think I don't know? You only hear from posters? Have you access to some survey that says that more than 50% of /. readers think that?

        I really wish people would stop grouping people by some arbitrary criteria, in this case they read Slashdot. I personally like to hear and debate from people who disagree with

    • At the end of the day there are too many people and we are extracting resources faster than the ecosystem can adapt. At the end of the day, nature will force us to change. My hunch is that over populated poor countries will be the ones to feel the most pain, and the rich nations will be the last to be impacted.
      • Re: So (Score:5, Interesting)

        by MightyMartian ( 840721 ) on Wednesday July 28, 2021 @01:26PM (#61630831) Journal

        We're being impacted even now. The heat dome that nailed western North America was intense enough that it cooked many fruit crops right on the vine. It also means harsher summer droughts that may ultimately make some parts of North American effectively unlivable in the long run, at least for any significant number of people. Sure, countries like Canada and the US can probably work on desalination projects, but desalination is very energy intensive, and using it fill the hole that falling water tables only goes so far; enough for drinking water, but enough for agriculture and major industrial processes?

        Shifting rain belts and changes to precipitation patterns are going to play absolute havoc with agriculture. Cost of food is already going up, and it isn't going to come down. Then there's the flooding, and not just coastal sea level rise, but with cooking hot summers and then significant precipitation means overland flooding risks get much worse.

        Can the West absorb such costs? To a point, sure. We are wealthy enough to mitigate at least some of it, but it is going to become a major drag on our economies. Insurance companies have already been factoring in climate change into actuary models, and banks are investors are also looking seriously at it.

        As to population, it's expected to flatten out by the end of this century, but it's not going to go down any time soon. And as history shows, even a region suddenly is unable to support its population, people just don't sit down and politely die so as to not inconvenience their neighbors, they get up and start walking to where they think food and water are, so the geopolitical ramifications are huge. We're going to see wars of the kind we haven't seen since the Asian Steppe started spilling people out in late Roman and early Medieval times.

        • Sure, countries like Canada and the US can probably work on desalination projects, ...

          The thing about desalination is you have to have something to desalinate in the first place. For any location on the coast building a desalination plant for local needs is an option.

          But getting that water to where it's going to be most needed, like Iowa, Kansas, Niger, Chad, etc. is going to be the hard part. Pipelines cost money that governments are not going to want to spend.

          ... but desalination is very energy intensive, ...

          Depends on how you do it, there are methods that are not very energy intensive but they are also not very efficient. Its a trade

      • Quoting:
        "At the end of the day there are too many people and we are extracting resources faster than the ecosystem can adapt."

        Correct.

        Current World Population [worldometers.info]. Wow! 1,394,794,385 in India.

        Joke: I'm male. I've decided I will do my part to prevent population growth. I will never get pregnant!
        • The earth can sustainably support 2^32 humans. It's the last bit that is going to kill us (along with most species on the planet).
      • Most of the damage was done when Earth had a fraction of its present population. Population reduction would actually not be helpful:

        https://www.wired.com/story/op... [wired.com]

      • At the end of the day there are too many people

        Just curious - do you consider yourself part of the "too many"? If not, why not, and what do you propose to do about it?

        It's really amazing the extent to which people will call for the removal of OTHER PEOPLE....

    • Yes, but we still need to lower our CO2 usage, otherwise you are going to end up rebuilding your infrastructure more often. We currently rely on Infrastructure that can be hundreds or thousands (if you in Europe or Asia) of years old, with normal upkeep they have long time paid for themselves, having to rebuild the infrastructure every 50 to 100 years, is going to be extremely expensive, and create more issues.

      Also there are so many people who are attached to the areas that may become unlivable or greatly

    • by chill ( 34294 )

      The best explanation I've seen is from The Newsroom [youtube.com], Season 3, Episode 3.

  • by rsilvergun ( 571051 ) on Wednesday July 28, 2021 @12:49PM (#61630671)
    Next month. I've got friends you have had their rent go up by a thousand. That's per month. Nobody cares about climate change when they're worried about whether they're going to have a roof over their heads next week. We're all too desperate to worry about something that might be 6 months to a year down the road. And hell for a lot of people the worst of it's probably 10 or 20 years down the road.

    If you care about climate change you have got to stabilize People's livelihoods first. Because it's difficult to get a man to understand something when his livelihood depends on him not understanding it. And all the complaining about how bad things are going to be in a few years doesn't mean anything to someone who's facing homelessness now.
    • by ZorinLynx ( 31751 ) on Wednesday July 28, 2021 @12:57PM (#61630695) Homepage

      There's also a huge feeling of hopelessness and that we can't do anything about it. Our politicians don't care and just want to line their own pockets. Even if we all individually tried to be more "green", it would only be a tiny dent; most of what is driving climate change is the output of large corporations. People don't care; hell many won't even get themselves vaccinated to stop an easily controlled virus.

      I'm reaching a point where I'm increasingly glad I didn't have kids and that "we might as well enjoy the time we have left." It's not going to change; there's no Captain Planet that is going to fix things. I'm relieved I won't be around to see the worst of it, but feel really bad for the kids growing up now. They deserve better than the hellscape we left for them.

      • There's also a huge feeling of hopelessness and that we can't do anything about it. Our politicians don't care and just want to line their own pockets.

        This is why I speak about the Disease of Greed that has infected mankind, for which we have no cure.

        The FUCK is the point in any politician "lining their pockets", especially the ones with children and grandchildren? Do they have some secret utopian planet they're planning on jetting off to for retirement? NO, they don't. They never change their mentality because they're infected. Not by COVID (well maybe, but irrelevant), but by Greed.

        Mankind has wasted hundreds if not thousands of years carving line

        • This is why I speak about the Disease of Greed that has infected mankind, for which we have no cure.

          How do you define greed? When someone wants something that you don't want?

          The problem with curing "greed" is that most people who use the word have no clear definition. So it can tautologically never be cured.

          • by geekmux ( 1040042 ) on Wednesday July 28, 2021 @01:55PM (#61630995)

            This is why I speak about the Disease of Greed that has infected mankind, for which we have no cure.

            How do you define greed? When someone wants something that you don't want?

            The problem with curing "greed" is that most people who use the word have no clear definition. So it can tautologically never be cured.

            Your sig conveys some irony here. We are not merely all brothers. We are all part of the same human race.

            And when it comes to the survival of that race, Greed is simply defined as anyone and anything that looks to pit human against human, and not focus on moving us ALL forward. Soon, the only justification behind "create jobs", will be to work for our literal survival. Right now, Greed is still manipulating those priorities.

            Besides, I'd venture to guess the top 500 richest humans (out of over 7 billion), retain at least 50% of the wealth of an entire planet. Says a lot about what needs to change.

          • by gweihir ( 88907 )

            "Greed" is when you still desire to take from others when a) what you have actually works reasonably for you and b) taking from others makes their lives a significantly more worse than it does improve yours. Basically falls back to the most basic definition of "evil": Willingness to accept (or do) significant harm to others for a minor personal gain. In economic terms it would be willingness to destroy value of your society to increase your personal fortune by less of what you destroyed.

            Or in layman's terms

        • by gweihir ( 88907 )

          You are basically saying that so much of the human race does not have what it takes that the few that actually see what is going on and how stupid what the others do is have no chance of really doing anything. I think I agree to that.

      • I wouldn't just blame politicians. There is a pattern to human history; whether it was in ancient Mesopotamia where poor agricultural practices and lack of maintenance of rivers and canals rendered vast areas of the "Fertile Crescent" rather infertile, or the Mayans not realizing how vulnerable their civilization was, where people just kept on doing what they were doing, and the leadership lacked the will or even the political capital to change their ways. In the West, there are strong commercial interests

      • Even if we all individually tried to be more "green", it would only be a tiny dent; most of what is driving climate change is the output of large corporations.

        There are no corporations releasing CO2 as a hobby while and cackling like supervillains. They release CO2 because consumers - that's you and me - pay them to. We pay them to do it through power stations and aircraft/ship/truck engines and oil refineries/fuel transport systems (to get fuel to burn in our cars). If we all individually tried to be more "green" we would completely solve global warming, for a sufficiently wide-reaching definition of "being green."

        This isn't to say that we shouldn't take collect

      • "People don't care". This shifts blame back to the individual, even though from your post ("what is driving climate change is the output of large corporations") I can tell you know it's not something that individuals can solve.

        This isn't an accident. Look up John Oliver's video on Recycling and the Plastic industry.

        The best thing you can do is vote in your primary election. And (I'll take a hit for this) vote for the Democrat (assuming your American). I think it's safe to say that the GOP won't do a
    • Kind of hard to stabilize when one's in the middle of the results. [youtu.be]

    • One piece of good news here is that as solar and wind power becomes cheaper and batteries become cheaper, that aspect of cost of living may actually become better. There's a serious argument (made for example by Noah Smith here https://noahpinion.substack.com/p/why-im-so-excited-about-solar-and [substack.com]) that if we can decrease energy cost we'll start seeing the same rapid economic growth we saw in previous times when we discovered new sources of energy.

      The extra good news here is that you can personally help wit

    • by gweihir ( 88907 )

      Well, yes. But climate change is what is called a "skill gate" in games. If you do not get past this one, you never get at what challenges and riches lie behind it. The purpose it serves in games is to make sure people that cannot actually handle what is behind it only get one disappointment instead of a series of them.

      My impression is the human race as a whole will not get past this one.

  • I was one of those people doing things like buying CFLs at $30 each back in the 90's to try to reduce my consumption.
    But that's just a drop in the bucket compared to everything else going on on the plant. It's immensely frustrating to have spent 30 years trying to help the planet, only to see it's decline accelerating.
    Fortunately, I don't have children, so I don't have to care about leaving a decent world for the next generations.
    Let's hope AI and machines replace us before this planet becomes too hostile

    • >I was one of those people doing things like buying CFLs at $30 each back in the 90's to try to reduce my consumption.

      Aww man, some of those early CFLs were just BAD! I had one that would flicker weirdly for like three whole seconds before coming on, then take about four minutes to reach full brightness. We put up with a lot to use those! I'm so glad they got better quickly, and then of course LEDs came along which are better still and crazy efficient.

    • You have to convince people to help... and get them to convince other people, and so on. Help isn't ever coming from the top. Fair or not, difficult or not, it's up to the little people.
    • Here is what they want you to do, directly from their manifesto [oup.com]:

      *) Eliminate fossil fuels (including hydrofluorocarbons) and switch to renewables
      *) Protect the earth's ecosystems so they can accumulate carbon and restore biodiversity
      *) Become a vegetarian
      *) Recycle and don't buy too much (end of "consumerism")
      *) Reduce the population

      So for you personally, don't eat much meat, don't buy things, don't use air conditioning, and don't have kids.

    • If you haven't seen the movie "Idiocracy", at least watch the first few minutes to gain an understanding of the irony of your thinking. Children are naturally resourceful, resilient, and adaptable in ways we rarely allow to see the light of day anymore.

      • by gweihir ( 88907 )

        Stop idolizing kids. Kits are just the same mix of idiots, assholes and only a few that actually get things as adults are. Yes, this means most kids are ignorant and many are assholes.

      • by msk ( 6205 )

        Your namesake understands the perils of overpopulation, and one of its logical conclusions: Trantor.

        Carbon footprint-wise, having children is one of the worst things a person can do.

    • by gweihir ( 88907 )

      Fortunately, I don't have children, so I don't have to care about leaving a decent world for the next generations.

      That may backfire. Since nobody knows how that part of reality works, you may just get reborn into this mess.

  • by AmazingRuss ( 555076 ) on Wednesday July 28, 2021 @12:56PM (#61630693)
    ... back to burning gas to get to workplaces they don't need to be at. The stupid never stops.
    • by Teckla ( 630646 )

      This should be modded up.

      Companies that are forcing their employees back into the office don't really care about the environment, despite what they might say.

    • ... back to burning gas to get to workplaces they don't need to be at.

      The effects of not consuming energy cannot be understated enough. We all like to think here we can burn shit with both the heater and AC running at the same time in the hope that some government somewhere will make the coal turn green, but the reality is we as a species need to stop consuming and we can do wonders.

      How much wonder? Well look at 2020. That year alone has put us from the track of the https://www.iea.org/reports/wo... [iea.org] "Stated Policies Scenario" which is a far cry from enough to actually avert

  • by rossdee ( 243626 ) on Wednesday July 28, 2021 @12:57PM (#61630697)

    "the annual loss rate of the Brazilian Amazon reached a 12-year high in 2020."

    But the US Amazon had record profits in 2020...

  • Countries, like corporations, are led by extremely competitive and ambitious people. And they are often interchangeable between corporation and government! Their attention is not on vague problems that might happen some day. They are most concerned about maintaining their leadership. Maintaining their authority.

    Oddly enough, it is that authority that got them where they are. Lots of people and voters seem to believe that ambitious people are what we need in leadership positions. The more someone behaves lik

    • the US is run by corporations. As Sheldon Wolon called it "Inverted totalarism". https://en.wikipedia.org/wiki/... [wikipedia.org] .Politicians are owned by corporations. It is impossible to vote against the interests of Goldman Sachs or Exxon mobile. Chris Hedges, pulitzer prize winning author, and middleast bureau chief for the New York times is able to put this in perspective. watch this speech: https://www.youtube.com/watch?... [youtube.com]
  • Our magical Jesus will save us, we don't need no stinking science!!
    That goes for the china virus hoax too!!
  • They lost me when they claimed we should all switch to a vegetarian diet. There's no way any of that is going to happen. Ever.
    • the corporate animal production industry is the 2nd largest contributor to ghg's. Switching to plant based food is not only better for you, but better for the planet.
    • You don't need to switch to a 100% vegan or even just vegetarian diet. If people simply eat less meat, that's already helpful. My spouse and I for example have a largely meat-free home, but do eat meat when we visit my parents who are heavy meat eaters. (I joke with my spouse that I deserve more virtue points for not consuming much meat because she's not that fond of meat while I deeply desire it.)
  • by lazarus ( 2879 ) on Wednesday July 28, 2021 @01:22PM (#61630807) Journal

    No politician (or gaggle of them) will commit to anything involving short-term pain as their planning horizon is 4-5 years at a time (depending on the so-called democracy they operate in). Hell, they can't even get the populous to take basic measures to protect themselves in a pandemic. Mix in capitalism and corporate lobbying and there is a higher chance of me turning into a duck tomorrow than us not sailing right through the climate tipping point with nary a blip in our carbon output.

    The Earth will be fine after it kills off a sufficient number of us. That's pretty much the only way this ends.

  • Bla bla bla nobody's listening. Put some hip hop to it and jiggle your booty
  • by ScrewMaster ( 602015 ) on Wednesday July 28, 2021 @01:40PM (#61630909)
    Face facts: North America and Europe can make all the cute little "accords" they want, but that won't make any difference.

    China (and now India, the other rising industrial power) couldn't care less about global environmental concerns. They want a high-energy, resource-intensive Western lifestyle for as many of their people as they can manage, and they don't care about the cost or the damage they're doing. China especially, because China isn't limiting its hunger for more resources to its own territory, and is building more and more coal-fired power plants.

    I've long stated that a correction needs to be applied and that it would be best if we were to do it collectively as a species. It doesn't matter though. If we don't stop consuming and reproducing at an ever-accelerating pace (and we won't) Mother Nature will cheerfully make that correction for us. Just remember one thing:

    Mother Nature is a bitch.

    As an aside, if we bungle it and civilization collapses completely, that may well spell the end. We've already used up all of the easy-to-access raw materials (coal, oil, natural gas, minerals of all kinds) with the remainder requiring more and more sophisticated technology to access. There won't be anything left for the next budding civilization to build on.
    • by JoshuaZ ( 1134087 ) on Wednesday July 28, 2021 @01:53PM (#61630977) Homepage
      It is true that China and India are building more coal plants, but they are also building a lot of nuclear, wind, and solar. China for example accounts for slightly over a third of the world's solar power https://en.wikipedia.org/wiki/Solar_power_in_China [wikipedia.org]. And India's wind and solar industries expanded even during the chaos of 2020 https://www.greentechmedia.com/articles/read/india-solar-energy-transition-pandemic-2020 [greentechmedia.com]. Meanwhile, as in the US and other places, coal in those locations is starting to face serious economic difficulties. Recently a whole bunch of Indian coal mines went up for auction and no one bought them. https://www.reuters.com/world/india/no-bids-over-70-indian-coal-mines-up-auction-2021-07-09/ [reuters.com]. This wasn't out of green concern as much as them simply not being economically viable.

      As an aside, if we bungle it and civilization collapses completely, that may well spell the end. We've already used up all of the easy-to-access raw materials (coal, oil, natural gas, minerals of all kinds) with the remainder requiring more and more sophisticated technology to access. There won't be anything left for the next budding civilization to build on.

      I agree that this should be a concern. And it should be a concern not just for climate change but for other potential major risks also. One argument for leaving the remaining fossil fuels in the ground is that completely aside from the climate issues, they represent a small insurance policy for any future civilization. Unfortunately, much of the remaining fossil fuels are themselves in more technologically difficult to access locations, so the degree to which this will help is unclear.

    • Re: (Score:3, Informative)

      by amchugh ( 116330 )

      China is less than half the CO2 emissions per capita as the US, India less than an eighth.

      • I'm not sure that China's numbers are accurate: they lie about pretty much everything to do with internal statistics so they're not to be trusted.

        Regardless, the civilized West is losing population, indeed many European nations are in a population decline, as is the United States (or would be, were it not for illegal migration.) China currently has almost five times America's population, more people than the U.S. and Europe combined. Worse yet, they have a burgeoning middle class that wants all the cool
    • Face facts: North America and Europe can make all the cute little "accords" they want, but that won't make any difference.

      China (and now India, the other rising industrial power) couldn't care less about global environmental concerns.

      OMG Look over there. It's a China. The solution to global warming to to ensure those poor 3rd world people stay poor while we keep burning energy without remorse because we are America and being the top of emissions per capita tables is as American as guns and Jesus.

      Yeah fuck poor people!

      USA! USA! USA! /sarcasm

  • by account_deleted ( 4530225 ) on Wednesday July 28, 2021 @01:44PM (#61630943)
    Comment removed based on user account deletion
    • The problem is, if you kill off too many of the right people (that is, those that develop and maintain the technology that the plebs need to survive) everyone dies anyway. What we need is a good selective plague.
    • I'm not a big believer in needing to remove people immediately. I'd say the simple solution would be education and encouraging breeders to remain under par with their children. Two people spawning six to ten children is why we're watching global population rise at the scale we've seen. And while it's slowed somewhat in some countries, it's not slowed that much worldwide at the moment.

      Even if most couples held themselves to just two kids it'd at least get us closer to a stable population number. Holding

  • Transportation, heating, electricity, concrete production and live stock are the major sources of green house gasses in my country and they are all my fault. I live in the suburbs of a rich country. My neighbourhood is completely, 100% unwalkable for any commerce. I have to drive to work, for entertainment and for shopping. My roof and my neighbours roofs are dark in colour and so is the asphalt on my road and driveway, perfect for creating a heat island. I run my AC all day using fossil fuel generated
  • Look behind you, that's the cliff you just fell off.

  • Political science isn't science.

  • I'll go vegan and buy an EV just as soon as the wealthy elite stop buying multi-million dollar ocean front properties and mega mansions.

  • If anyone's looking for something to do about this, I recommend: https://citizensclimatelobby.o... [citizensclimatelobby.org]

If all else fails, lower your standards.

Working...