New Study Debunks Claim That Warming Is No More Than Natural Variability

[Gotham_Spartan]

"The burst of warming over the past one to two decades takes us out of the envelope of natural variability."

Earth Hotter Now Than in Past 2,000 Years, Study Says

Globalwarmingly yours,

[FishHead]

Originally Posted by Gotham_Spartan

"The burst of warming over the past one to two decades takes us out of the envelope of natural variability."

Earth Hotter Now Than in Past 2,000 Years, Study Says

Globalwarmingly yours,

[Dr. Strangelove]

The planet is hotter now than it has been for nearly the past 2,000 years, researchers report.

The new study is led by Michael Mann, a climatologist who helped develop the famous 1998 "hockey stick" graph.

---
Um...the Hockey Stick is broken.

broken hockey stick global warming - Google Search

[FishHead]

Originally Posted by Dr. Strangelove

The planet is hotter now than it has been for nearly the past 2,000 years, researchers report.

The new study is led by Michael Mann, a climatologist who helped develop the famous 1998 "hockey stick" graph.

---
Um...the Hockey Stick is broken.

broken hockey stick global warming - Google Search

No, if you read all the article, the he is bringing the hockey stick back and swinging Too much, the guy was laughed at by the scientific community for the stick, now claims its hotter, when temps last year world wide were warmer, and the ice this year around the world is more dense and abundant, but hey, have at it, believe him again GW crowd

[Cym Jim]

Originally Posted by Dr. Strangelove

The planet is hotter now than it has been for nearly the past 2,000 years, researchers report.

The new study is led by Michael Mann, a climatologist who helped develop the famous 1998 "hockey stick" graph.

---
Um...the Hockey Stick is broken.

broken hockey stick global warming - Google Search

Don't.

[Rashomon]

Originally Posted by Dr. Strangelove

---
Um...the Hockey Stick is broken.

broken hockey stick global warming - Google Search

wrong

RealClimate

[Rashomon]

Originally Posted by Cym Jim

Don't.

Those are some good sources listed, you have to admit.

[Jack78]

Originally Posted by Rashomon

wrong

RealClimate

I can't help but believe the Dr. is just yanking chains ... you know, the trolling that's in violation of WH rules.

[Bullwrinkle]

Those damned Persians, Greeks and Romans busy overheating the planet 2000 years ago.

No global responsibility there at all.

[newduke]

The arguments about global warming are getting really old. No doubt the cycles are natural and the current one is being influenced by mankind. Undoubtedly there will also be another ice age too. It's hardly disputable.

[Jack78]

Originally Posted by newduke

The arguments about global warming are getting really old. No doubt the cycles are natural and the current one is being influenced by mankind. Undoubtedly there will also be another ice age too. It's hardly disputable.

Impressive. How much is man influencing the current natural cycle? Might that unchecked influence create disastrous impacts on Earth's ecosystems, particularly on humans and our way of life? If so, can we stop/reverse that influence before major disruption occurs? How?

When do you expect the next ice age?

[lars]

And August was the first month in the recent record that no sun spot activity occurred. The last 3 times in history that this happen it preceded a significant cooling effect. Once close to a minor ice age. Notice how nicely this graph matches the recent warming cycles.

Sunspot activity of the past decade. Over the past year, SIDC has continually revised its predictions downward (Source: Solar Influences Data Center)

Geomagnetic solar activity for the past two decades. The recent drop corresponds to the decline in sunspots. (Source: Anthony Watts)

A chart of sunspot activity showing two prior solar minima, along with heightened activity during the 20th century (Source: Wikimedia Commons)
Drop in solar activity has potential effect for climate on earth.


The sun has reached a milestone not seen for nearly 100 years: an entire month has passed without a single visible sunspot being noted.
The event is significant as many climatologists now believesolar magnetic activity – which determines the number of sunspots -- is an influencing factor for climate on earth.
According to data from Mount Wilson Observatory, UCLA, more than an entire month has passed without a spot. The last time such an event occurred was June of 1913. Sunspot data has been collected since 1749.
When the sun is active, it's not uncommon to see sunspot numbers of 100 or more in a single month. Every 11 years, activity slows, and numbers briefly drop to near-zero. Normally sunspots return very quickly, as a new cycle begins.
But this year -- which corresponds to the start of Solar Cycle 24 -- has been extraordinarily long and quiet, with the first seven months averaging a sunspot number of only 3. August followed with none at all. The astonishing rapid drop of the past year has defied predictions, and caught nearly all astronomers by surprise.
In 2005, a pair of astronomers from the National Solar Observatory (NSO) in Tucson attempted to publish a paper in the journal Science. The pair looked at minute spectroscopic and magnetic changes in the sun. By extrapolating forward, they reached the startling result that, within 10 years, sunspots would vanish entirely. At the time, the sun was very active. Most of their peers laughed at what they considered an unsubstantiated conclusion.
The journal ultimately rejected the paper as being too controversial.
The paper's lead author, William Livingston, tells DailyTech that, while the refusal may have been justified at the time, recent data fits his theory well. He says he will be "secretly pleased" if his predictions come to pass.
But will the rest of us? In the past 1000 years, three previous such events -- the Dalton, Maunder, and Spörer Minimums, have all led to rapid cooling. On was large enough to be called a "mini ice age". For a society dependent on agriculture, cold is more damaging than heat. The growing season shortens, yields drop, and the occurrence of crop-destroying frosts increases.

[GreenSpartan]

Originally Posted by Cym Jim

Don't.

[GreenSpartan]

Originally Posted by lars

Notice how nicely this graph matches the recent warming cycles.

I don't dispute the influence of the sun on the earth's climate, but what are you talking about? Maybe it's how we define "recent", but the fit is terrible for the last 25 yrs.

[newduke]

Originally Posted by Jack78

Impressive. How much is man influencing the current natural cycle? Might that unchecked influence create disastrous impacts on Earth's ecosystems, particularly on humans and our way of life? If so, can we stop/reverse that influence before major disruption occurs? How?

When do you expect the next ice age?

I agree with a large contingent of scientists who point to human influences on global warming, superimposed on a "natural" cycling between warm and cold periods. This article explains it better than I can.

When Will the Next Ice Age Begin? - New York Times

[GreenSpartan]

So we've got into it a number of times about Mann's hockey stick stuff. Some posters claim that the stats critiques are legit and there is no hockey stick.

Um.

As I have pointed out numerous times before, there are other proxies. They all same the same thing. The recent warming is anomalous.

You can measure it with tree rings, corals, ice bores, etc. What we see now does not match known forcings.




So you Mann haters (lars), you finally accept his results?