Scientists use rare mineral...

to correlate past climate events in Europe and Antarctica, establishing that the Little Ice Age and Medieval Warm Period were global in extent.

Hmm.  That's not the way it's supposed to work. Al Gore, call your office.

That's not the way...

it's supposed to work: Greenhouse gas index continues to climb yet NCDC data shows that the contiguous USA has not warmed in the past decade, summers are cooler, winters are getting colder.  Interesting.

Settled science?  Al Gore, call your office.

Settled science...

Arctic 'tipping point' may not be reached.  The article's subheading reads:  "Scientists say current concerns over a tipping point in the disappearance of Arctic sea ice may be misplaced."

Here's the technical abstract in Science.

Al Gore, call your office.

More perspective on climate change...

from glaciologist Don Easterbrook:  The Magnitude of Greenland GISP2 Ice Core Data.

Here's a related previous post.

It's really much to do...

about nothing, according to Don Easterbrook: 2010 – where does it fit in the warmest year list?

Sunspots could soon disappear...

for decades. Key bit:

"Sunspot formation is triggered by a magnetic field, which scientists say is steadily declining. They predict that by 2016 there may be no remaining sunspots, and the sun may stay spotless for several decades. The last time the sunspots disappeared altogether was in the 17th and 18th century, and coincided with a lengthy cool period on the planet known as the Little Ice Age."

A puzzling collapse...

of Earth's upper atmosphere.

Studying volcanoes in Nebraska...

Volcanic Eruptions in North America Were More Explosive in Ancient Past

Vital feces...

Climate Change: Whale Poop To The Rescue!

These mollusks...

aren't clamming up: Two Millennia of North Atlantic Seasonality and Implications for Norse Colonies. Let's cut to the chase with a glance at the abstract:

"δ18O values of mollusks recovered from near-shore marine cores in northwest Iceland quantify significant variation in seasonal temperature over the period from ∼360 B:C: to ∼A:D: 1660. Twenty-six aragonitic bivalve specimens were selected to represent intervals of climatic interest by using core sedimentological characteristics. Carbonate powder was sequentially micromilled from shell surfaces concordant with growth banding and analyzed for stable oxygen (δ18O) and carbon (δ13C) isotope values. Because δ18O values record subseasonal temperature variation over the lifetime of the bivalves, these data provide the first 2,000-year secular record of North Atlantic seasonality from ca. 360 cal yr B.C. to cal yr A.D. 1660. Notable cold periods (360 B.C. to 240 B.C.; A.D. 410; and A.D. 1380 to 1420) and warm periods (230 B.C. to A.D. 140 and A.D. 640 to 760) are resolved in terms of contrast between summer and winter temperatures and seasonal temperature variability."

Likely a better climate record than what tree rings can provide.

Well, experts say a lot of things...

WEATHER: HOTTEST JANUARY EVER SAY CLIMATE EXPERTS

UPDATE: Unprecedented snow fall and frigid temperatures in Great Britain.

"Settled science" update...

ANALYSIS-Scientists examine causes for lull in warming

Sounds like a good idea.

Major retraction...

of "settled science:" Climate scientists withdraw journal claims of rising sea levels. In sum:

"Scientists have been forced to withdraw a study on projected sea level rise due to global warming after finding mistakes that undermined the findings."

Hmm. And from the journal Nature Geoscience no less.

Startling admission...

of bad science: Climategate U-turn as scientist at centre of row admits: There has been no global warming since 1995. Interesting moment of candor:

"Professor Jones also conceded the possibility that the world was warmer in medieval times than now – suggesting global warming may not be a man-made phenomenon.

And he said that for the past 15 years there has been no ‘statistically significant’ warming."

And here's a related interview with the BBC.

Hmm. So much for "settled science" I guess. Too bad Al Gore is unwilling/unable/unavailable for comment.

Sea level varied erratically...

during latest Ice Age according to a new study. More here, and in the technical abstract.

Indeed, it seems pretty clear that there needs to be some significant revision to our understanding of glacial/interglacial cycling and the associated changes in sea level during the Pleistocene.

Still waiting for comment...

from Al Gore: Is it time to overhaul the IPCC?

Perhaps it's, um, inconvenient for him?

UPDATE: Previous related post.

Right on target...

If you're going to do good science, release the computer code too. The bottom line:

"This is how science works: by openness, by publishing minute details of an experiment, some mathematical equations or a simulation; by doing this you embrace deniability. This does not seem to have happened in climate research. Many researchers have refused to release their computer programs — even though they are still in existence and not subject to commercial agreements."

Free the code!

Drip, drip, drip...

Leaked climate change emails scientist 'hid' data flaws

Strange case of moving weather posts and a scientist under siege

One wonders why the American media aren't covering any of this alleged scientific misconduct?

Peer review...

is for the little people: UN climate change panel based claims on student dissertation and magazine article.

And this: Climate Chief Hid False Glacier Claims At Summit.

Sheesh.

UPDATE: UN climate panel shamed by bogus rainforest claim.

Unbelievable. Will there be any accountability on behalf of the IPCC?

A critical evaluation...

of surface temperature monitoring networks: Surface Temperature Records: Policy Driven Deception? (6.1 Mb .pdf file)

UPDATE: Previous related post.