Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
Earth

Ocean Temperatures Break Records. Scientists are Alarmed (cnn.com) 139

An anonymous reader shared this report from CNN: Ocean surface heat is at record-breaking levels. Temperatures began climbing in mid-March and skyrocketed over the course of several weeks, leaving scientists scrambling to figure out exactly why.

Temperatures have fallen since their peak in April — as they naturally do in the spring — but they are still higher than they have ever been on record for this time of year.... The record may not seem huge — it's nearly two-tenths of a degree higher than the previous record in 2016 — but given how much heat is needed to warm up this huge body of water, "it's a massive amount of energy," Matthew England, professor of ocean and climate dynamics at the University of New South Wales, Australia, told CNN... Some scientists are concerned the scale of these new records could mark the start of an alarming trend. Others say record-breaking temperatures like these are always concerning but to be expected given the human-caused climate crisis.

All agree the consequences are likely to be significant. Warmer oceans bleach coral, kill marine life, increase sea level rise and make the ocean less efficient at absorbing planet-warming pollution — the warmer oceans get, the more the planet will heat.

The science leader at the British Antarctic Survey told CNN that "it's probably too early" to blame El Niño." In fact, the world just emerged from a 3-year La Niña cooling event in March. So instead, CNN gets a different explanation fro Gregory C. Johnson, an oceanographer at the National Oceanic and Atmospheric Administration: "It's a little bit like we've had the freezer door open for a while and it's helped to cool the planet," Johnson said. But even while that freezer has been open, background temperatures have continued to rise. Now the freezer is closed, everything is hotter than before.
Later CNN adds that some scientists are concerned "climate change might be progressing in ways climate models have not predicted." One surprising reason could be the reduction of aerosols in the atmosphere. In 2020, regulations were introduced to limit the amount of sulfur in the fuel ships used — a policy aimed at addressing air pollution. Though air pollution has a significant impact on human health, it also acts as an artificial sunscreen and reflects sunlight away from the Earth. One theory is the absence of aerosols may have turned up the heat, said Karina von Schuckmann [an oceanographer at Mercator Ocean International in France].
This discussion has been archived. No new comments can be posted.

Ocean Temperatures Break Records. Scientists are Alarmed

Comments Filter:
  • Easy fix (Score:3, Insightful)

    by gweihir ( 88907 ) on Saturday May 06, 2023 @02:47PM (#63502425)

    Just ignore the Problem! I am sure that will make it go away, right? Oh, and look, we already have the first moron that thinks this is a really good strategy.

    • Just ignore the Problem! I am sure that will make it go away, right? Oh, and look, we already have the first moron that thinks this is a really good strategy.

      At first, I thought that you were referring to 'the first moron' as Donald Trump. But unlike many people who apparently believe history began when DT became president, I know that you're much older than that, given your slashdot user id.

      • by gweihir ( 88907 )

        I was referring to the first post under the story here.

        As to politicians that practice wilful ignorance, denial and simple non-understanding regarding climate change, there are tons of them. You do not get far in politics by being generally smart, insightful or having personal integrity. You get far by a deep desire for power, the ability to corrupt others and by being smart enough about your own corruption to not get easily caught and by ignoring anything that does not bring you votes in the short term.

        • Well if it was ONLY politicians, but I've seen the same on YT channels that deal with weather. Smoking, COVID, and now climate change we have to be dragged kicking and screaming to the facts.

        • As to politicians that practice wilful ignorance, denial and simple non-understanding regarding climate change, there are tons of them.

          I'm guessing those politicians actually do understand, but just don't care as any solutions would require difficult decisions that would endanger their party/candidacies and long-term efforts lasting beyond any potential terms in office. In other words, it's better for them short/medium-term to simply kick the can down the road and leave office when things go south.

    • by Baron_Yam ( 643147 ) on Saturday May 06, 2023 @04:40PM (#63502693)

      I will gain some satisfaction from watching things go to shit knowing I was correct.

      So many people are so concerned about themselves that they're content to live in a worse world so long as their ranking in it increases.

      Believe it or not, I'd be a hell of a lot MORE satisfied if the world's selfish idiots would just cooperate based on the best available knowledge and agree to do what is best for humanity as a whole. I'd like to die knowing my grandchildren will grow up in a world that offers better opportunities for a good life than mine did.

      • I'd like to die knowing my grandchildren will grow up in a world that offers better opportunities for a good life than mine did.

        That ship has sailed though, even if most people don't realize it. Given the inertia of CO2 already in the atmosphere, and if we were to really take action now (and not pat ourselves on the back because we do a bit more renewables, while at the same time hitting new all-time highs to CO2 emissions) you can maybe hope for better opportunities not for your grandchildren, but for your grand-grand-grand-grand-grandchildren. At best.

        I do feel the same about the rest of your post.

        • Full conversion to electric, oil will still be used for all sorts of other things, but if everything (plains, trains and automobiles) goes electric that's step one.

          With everyone running on batteries, we can then focus on replacing our power generation with nuclear - common tech is not ideal, the newer stuff will give us more juice for longer and less waste so this isn't just "build more nuke plants" but "build better, smaller, distributed nuclear power production capability and share tech with any nation ca

          • I think a battery has to last more than 5 years, otherwise it solves nothing
            • by gweihir ( 88907 )

              That is nonsense. You need to top thinking of it as a fixed installation. All that matters is effort to produce a certain storage capacity for a year of use. If they live short, make them easy to replace and easy to recycle. If they live very long, the opposite. It is an engineering question. There is absolutely nothing wrong with a battery farm you have to replace every 5 years is that replacement is easy.

  • Alarming trend (Score:3, Insightful)

    by pitch2cv ( 1473939 ) on Saturday May 06, 2023 @02:53PM (#63502441)

    these new records could mark the start of an alarming trend

    For the world outside the U.S. -the U.S. refused to collab or sign any climate agreements, cos who doesn't like the sun or oil, right- the alarming trend started over 20y ago.

    This isn't just late to the party, the party is about to be over.

    Now, stick those heads back in the sand and while your asses get fried.

  • by quonset ( 4839537 ) on Saturday May 06, 2023 @03:12PM (#63502505)

    Just drop a giant ice cube into the ocean [youtube.com] every now and then, thus solving the problem once and for all.

  • Simple: It is a massive, large-scale effect of global warming that nobody anticipated. You know, one of those things that can and will make things _worse_ than the current predictions. We likely will find a buch of them and they are a reason why just about doing enough to reach some already very generous climate goals is a strategy that leads right into disaster.

    • they are a reason why just about doing enough to reach some already very generous climate goals is a strategy that leads right into disaster.

      Remind me, are you the guy who is very vehemently against anything nuclear-related? You are part of the problem.

      • by gweihir ( 88907 )

        Relevancy? Oh, you are pushing an _ideology_! Sorry, but your cult is not connected to the real world.

        • You are pushing an ideology ("moar renewables! even if we emit more CO2!"), whereas I am explaining we need to focus on the current end goal: reducing CO2 emissions to reduce the impacts of climate change, our biggest threat at the moment.

          With that end goal in mind, nuclear emits less CO2 per kWh than solar (~11g vs 40g) and about the same as wind.

          By opposing nuclear, you are directly opposing that end goal, thus making you responsible for ocean temperature rises linked to climate change.

  • Extremists the wold over, really do not care.
    We will see plenty of posters here that will scream that America is to blame. Yet, they ignore their own words.
    Assume that ONLY CO2 / capita that is important.
    Here we see that America is down on the lsit at #15 and dropping. [europa.eu] Yet, China is at 33 and rising. fast.
    So, are the top 10 / capita the ones to blame? If America is to blame, then we are extremists not screaming about Canada and Australia with higher levels?

    Perhaps it is the total amount? By far,
  • Keep in mind that the planet's insides are very hot. For example, drillers find that at three miles down, the earth is 400 degrees, and it gets hotter the further deep you go. The ocean is actually in part heated at its far depths though it gets very cold down to that deep, then heats up. So all it would take is one region opening up the earth miles down, and that would heat the water over the region. However there are many factors contributing to the energy mix globally.
    • The amount of geothermal energy injected into the ocean vs. the amount of mechanical energy it receives from above via direct and indirect solar energy is microscopic.

      This ain't Mama Earth's fault.
  • Dear Scientists: I see you are becoming alarmed on at least a daily basis. This is not healthy. I recommend Xanax for a more calm life.

God help those who do not help themselves. -- Wilson Mizner

Working...