Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Joe Joyce asked in EnvironmentGlobal Warming · 8 years ago

How is the accumulation of heat energy in the ocean good for us?

The last time the Pacific Decadal Oscillation reinforced global warming was 1998, and we had a spike in heat that was way above the average, higher than any year before it in the global temperature record. Some 15 years later, we are in a cold phase of the PDO and that record-breaking year is now pretty average, just one of the bunch. What happens when the PDO swings back to its atmospheric warming phase? How high do you think *that* spike will get? And how high do you think the average temp will be 15 years after that? How long can the temperature keep ratcheting up like this? After all, the PDO is cyclic, so it shifts between La Nina and El Nino. What will the next several shifts bring?

Update:

Apologies, Tomcat, for sloppy writing. I do know the general difference between short-term and longer term variations. I should know better by this point to write things while I'm half-asleep. Let me use the original ending, before it made sense to me to put in that offending 9 word phrase:

"After all, the PDO is cyclic. What will the next several shifts bring?" Now would you take a stab at answering the question? ;)

Update 2:

Exactly, Gryph. If the last go-around gave us the highest temps we've seen in many thousands of years at least, what happens the next time things line up like '98? How high will our atmospheric temps be when that heat starts coming out of the oceans and those El Nino winds start blowing? And how many more times will that happen? I suspect we're going to see more record-hot years in the future, and they will drift down to decadal average in 10 - 20 years. Of course, now I'm answering part of my own question. And I know what I think, usually. ;)

Update 3:

Thanks, Al! Finally a good answer!

8 Answers

Relevance
  • Anonymous
    8 years ago
    Favorite Answer

    The new Argo Float System will eventually give us a better idea of how our oceans transfer heat energy. I think this was a great step in understanding how our oceans operate.

    On the flip side of your question is the total opposite thought : What if the AMO and PDO both go into a "negative" (cooling) phase? It seems that is why we had our recent Arctic Ice build up.

  • 8 years ago

    Grifter: <Where do you DA deniers keep getting all this Earth cooling crap.>

    http://www.woodfortrees.org/plot/hadcrut3gl/from:2...

    We are getting it from the sources that James Hansen and Phil Jones concocted when the earth was in a real warming trend. You live by the sword, you die by the sword.

    <10th warmest year globally in 132 years > I'll go you one better. It is probably one of the warmest years going back to 1650, the bottoming of the Little Ice Age. It is natural and part of the Earth's natural cycle, as we have been saying for a long time. This just shows that the 'saviors of the earth' will cling to anything in their feeble attempt to prove their point.

    In direct answer to the question: This aspect of the argument is too new to really properly address it. For one thing, we are discovering new volcanoes beneath the sea surface almost daily. What does that have to do with the ocean heat and position of the heat? How do these affect the currents? Just too many unknowns to be conclusive.

  • Kano
    Lv 7
    8 years ago

    PDO is negative but AMO is positive, when AMO goes negative it will cool.

    I dont have proof and cant even tell how (what mechanism) but El nino's are a response to ocean surface heating and La Nina's respond to cooling, the last 15yrs temperatures have flat lined which is why we have neutral ENSO conditions

  • 8 years ago

    Here we go again. We have a very limited amount of data regarding the ocean temps.

    You've got some serious demonstrating to do if you can demonstrate to me that we have had any ocean warming at all.

    You will undoubtably come up with some and selected data that claims some sort of increase at some ocean level with an implied accuracy that is far inside any margin of error a rigorous argument should have.

    To think a half degree rise in atmospheric temps has a detectable effect on a body whose thermal mass is 250 times greater is absurd.

    Who's the denier now?

  • How do you think about the answers? You can sign in to vote the answer.
  • Tomcat
    Lv 5
    8 years ago

    1998 was a strong El-Nino, El-Nino and the PDO phase are two different phenomena, you can still have both El-Nino's and La-Nina's during negative and positive PDO phases. Generally during the PDO warm phase there are more El-Nino's than La-Nina's.

    http://www.esrl.noaa.gov/psd/enso/mei/ts.gif

  • Anonymous
    8 years ago

    Where do you DA deniers keep getting all this Earth cooling crap.The Earth is not cooling The next 4 years are expected to be at or near global high temp range. AGW is not a straight line, there will be variations. However, that doesn't change that fact that GW is here.and 2012 was the 10th warmest year globally in 132 years That doesn't seem like cooling to me We have pumped enough extra greenhouse gases since the beginning of the industrial revolution to fuel AGW until beyond 2100

    Indeed the oceans are warming, As a result there is more sea ice melting which is cold water. Sort of balances out. Ocean temps raising can disrupt marine life, particularly certain types of algae. Algae provides 60-90% of our oxygen. Ocean warming may effect the movement of the Gulf Stream veering away from Europe which means they may have to X-country ski to the pub in the future

  • Ben O
    Lv 6
    8 years ago

    Sounds like crying wolf one more time.

    Lots of sciency sounding acronyms but the truth is there never was a basis for claiming CO2 has a significant affect on climate.

  • 8 years ago

    The global insurance industry, being obviously nothing but an army of puppets pulled by Al Gore, is busy destroying itself by denying prize-winning Blogosphere-scientists who have proven beyond a shadow of doubt that it's cooling, warming is due to the sun, and human-caused warming is good for us, all at the same time.

    http://www.bloomberg.com/news/2013-07-18/insurance...

Still have questions? Get your answers by asking now.