Top Menu

Study Shows Record Warming in Past Century

via Mother Jones

via Mother Jones


From Science Magazine, another study confirming that, yes, “climate change” is real.

Of course, for the hardcore Deniers, it won’t make any difference. What’s your guess about why denial of scientific evidence, in this case rising temperatures, is a decision made by some?

From an NPR report:

The research team tracked temperature by studying chemicals in the shells of tiny, fossilized sea creatures called foraminifera. Their temperature record matches other techniques that look back 2,000 years, which supports the validity of their much longer record.

One of the authors of the study, Shaun Marcott, a geologist at Oregon State University, said that (emphasis added throughout)

… ‘global temperatures are warmer than about 75 percent of anything we’ve seen over the last 11,000 years or so.’ The other way to look at that is, 25 percent of the time since the last ice age, it’s been warmer than now. …

Marcott says the record shows just how unusual our current warming is. ‘It’s really the rates of change here that’s amazing and atypical,’ he says. Essentially, it’s warming up superfast.

At the end of the ice age, NPR’s Christopher Joyce, reports, temperatures warmed; about 5000 years ago, temperatures started cooling, but

‘really slowly … 1.3 degrees Fahrenheit, up until the last century of so. Then it flipped again – global average temperature shot up.

‘Temperatures now have gone from that cold period to the warm period in just 100 years,’ Marcott says.

So it’s taken just 100 years for the average temperature to change by 1.3 degrees, when it took 5,000 years to do that before.

The prediction by “climate scientists” is that the trend will continue, “given the amount of greenhouse gases going up into the atmosphere.”

As a report at The Wall Street Journal put it:

The study points to human activity as the cause, because the suddenness of the shift in temperature appears to be out of whack with long-term trends.

Here’s the Abstract from A Reconstruction of Regional and Global Temperature for the Past 11,300 Years, by Shaun A. Marcott, Jeremy D. Shakun, Peter U. Clark, and Alan C. Mix.

Surface temperature reconstructions of the past 1500 years suggest that recent warming is unprecedented in that time. Here we provide a broader perspective by reconstructing regional and global temperature anomalies for the past 11,300 years from 73 globally distributed records. Early Holocene (10,000 to 5000 years ago) warmth is followed by ~0.7°C cooling through the middle to late Holocene (<5000 years ago), culminating in the coolest temperatures of the Holocene during the Little Ice Age, about 200 years ago. This cooling is largely associated with ~2°C change in the North Atlantic. Current global temperatures of the past decade have not yet exceeded peak interglacial values but are warmer than during ~75% of the Holocene temperature history. Intergovernmental Panel on Climate Change model projections for 2100 exceed the full distribution of Holocene temperature under all plausible greenhouse gas emission scenarios.

Thinking again of the climate change deniers — maybe it’s just another instance of avoiding the need to make changes, and more fundamentally yet, take responsibility.

(Climate Change Studies Nation of Change)

, , ,

3 Responses to Study Shows Record Warming in Past Century

  1. secularhumanizinevoluter March 10, 2013 at 7:35 am #

    There you go with those pesky facts and science thingys….EVERone knows facts and science have a liberal bias.

    • Joyce Arnold March 10, 2013 at 9:59 am #

      “Pesky facts and science thingys” — I’m guilty as charged, regarding using such things :)

      By the way sec, I particularly like the use of “thingys.” And it reminds me: do you recognize “It’s a thingy! A fiendish thingy!” ?

  2. newdealdem1 March 10, 2013 at 7:31 pm #

    “Thinking again of the climate change deniers — maybe it’s just another instance of avoiding the need to make changes, and more fundamentally yet, take responsibility. ”

    Yup, well said, Joyce.

    I found this very apt and spot on comment about climate change deniers in “The Skeptics Dictionary”

    “Climate change deniers are contrarians who challenge the evidence that human activities such as deforestation and human behaviors that result in more greenhouse gases like carbon dioxide are causing changes in our planet’s climate that may prove devastating and irreversible. Contrarians pose as skeptics, refusing to accept consensus conclusions in science on the ground that there is still some uncertainty. True skeptics raise specific doubts about specific claims and do not try to debunk a whole area of science by an occasional error or by the general lack of absolute certainty, which is unattainable in any area of science.”

    LOL about those ““Pesky facts and science thingys”. The deniers will never let those thingys get in the way of their living in their imaginary world.

    I also like to use the term “thingys” It’s a British expression which I love and I mostly love British expressions. :)

    I had to look up where “It’s a thingy! A fiendish thingy!” ? came from. I had no clue. Interesting, it’s one of my fav thingys LOL. I won’t give it away so as to give sec a chance to respond.

.... a writer is someone who takes the universal whore of language
and turns her into a virgin again.  ~ erica jong