Tag Archives: Geophysical Research Letters

Climate modeling turkey shoot, western style

Western U.S. Precipitation Extremes—How Did This Turkey Get Published? By Dr. Patrick Michaels When it comes to changes in future precipitation across the United States, climate models projections are all over the map. In other words, they provide no useful … Continue reading

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Posted in Modeling | Tagged , , , , , , , , | 53 Comments

Shollenberger’s Technical Review of Mann’s recent book

Readers may recall this posting A detailed review of Mann’s book: The Hockey Stick and the Climate Wars as it relates to the Wegman report to Congress. This post today is a continuation of that review, with more in-depth technical … Continue reading

Posted in Book Review, Michael E. Mann | Tagged , , , , , | 218 Comments

Mann and coining the AMO and claims of credit

Junkscience.com writes: Did Michael Mann falsely claim to coin a famous climate term actually coined by someone else? In Mann’s new book “The Hockey Stick and Climate Wars”, Mann writes: The multidecadal oscillation I’d helped discover would nonethless become a … Continue reading

Posted in AMO, Michael E. Mann | Tagged , , , , , , , , | 64 Comments

GISS finally concedes a significant role for the sun in climate

UPDATE: The paper itself is available below. There is a new  paper published yesterday in the journal Geophysical Research Letters from NASA GISS/Columbia University and Brown University titled  Hydroclimate of the northeastern United States is highly sensitive to solar forcing … Continue reading

Posted in Current News, Rainfall | Tagged , , , , , , , | 116 Comments

Declining global average cloud height: “A significant measure of negative feedback to global warming”

Guest post by Dr. Pat Michaels – reposted (with permission) from World Climate Report A new paper just published in Geophysical Research Letters by Roger Davies and Mathew Molloy of the University of Auckland finds that over the past decade … Continue reading

Posted in Climate sensitivity | Tagged , , , , , , , | 99 Comments

Greenland’s pronounced glacier retreat not irreversible

Via the AGU weekly highlights: In recent decades, the combined forces of climate warming and short-term variability have forced the massive glaciers that blanket Greenland into retreat, with some scientists worrying that deglaciation could become irreversible. The short history of … Continue reading

Posted in Glaciers | Tagged , , , , , , , | 47 Comments

New paper speculates on volcanoes during the Little Ice Age

From NCAR/UCAR, they’re still trying to stamp out solar influence as a potential cause of the Little Ice Age. One of the things I wonder about is that during low sunspot activity, does the reduced solar-magnetic influence have any effect … Continue reading

Posted in Paleoclimatology, Vulcanism | Tagged , , , , , , , | 287 Comments

Death Valley’s Big Bang Theory

From the The Earth Institute at Columbia University Waiting for Death Valley’s Big Bang A volcanic explosion crater may have future potential In California’s Death Valley, death is looking just a bit closer. Geologists have determined that the half-mile-wide Ubehebe … Continue reading

Posted in Vulcanism | Tagged , , , , , , , | 47 Comments

“We need more hurricanes to save the coral reefs”

Above: SST heat loss from Hurricane Irene The title is sarcasm, but it does present an interesting quandary for alarmists. What’s more acceptable – hurricanes and the loss of life and property they bring, or loss of coral reef systems? … Continue reading

Posted in hurricanes, Sea Surface Temperature | Tagged , , , , , , , | 39 Comments

Study: Getting the S out of jet fuel may cool the climate

This study from Yale University  seems contradictory to what we know about aerosols. Generally more aerosols like SO2 cool the climate, but in this case they are saying “it’s offset by the cooling effect of nitrate that forms from nitrogen … Continue reading

Posted in Aerosols | Tagged , , , , , , , | 71 Comments

Possible earthquake early warning signal discovered

From the AGU: An atmospheric precursor to the recent Japan megaquake Most scientists believe that earthquakes are inherently unpredictable, and reports of various kinds of earthquake precursor signals have been difficult to verify. However, in a new study, Heki reports … Continue reading

Posted in Earthquakes | Tagged , , , , | 81 Comments

Getting GRLed

Dr. Roger Pielke Jr. recently submitted this paper to Geophysical Research Letters (GRL): A homogeneous database of global landfalling tropical cyclones Jessica Weinkle* and Roger Pielke, Jr. Center for Science and Technology Policy Research, University of Colorado, 1333 Grandview Ave, … Continue reading

Posted in Uncategorized | Tagged , , | 260 Comments

Bill Illis: Clouds account for most of the variability in net radiation at the Top of the Atmosphere

While we are marveling at the recent revelation out of Serbia that shows a connection between cosmic rays, clouds and temperature, our own volunteer moderator, Roger (Tallbloke) noticed and collated some comments from Bill Illis which are well worth repeating … Continue reading

Posted in Spencer-Braswell and Dessler | Tagged , , | 108 Comments

What do sea measurements reveal about Earth’s temperature trend?

From the AGU highlights Despite the fact that average temperatures on land have been increasing from year to year, globally averaged surface temperatures from 2000 to 2010 have shown only moderate warming. This is because sea surface temperatures over the … Continue reading

Posted in Sea level | Tagged , , , , | 89 Comments

Overpeck says 3 feet, real world sea level data says no way

From high and dry  University of Arizona, home of the world famous parking lot USHCN weather station, we have word via Eurekalert that a simulation says it will be bad as “sea levels are expected to rise by up to … Continue reading

Posted in Sea level | Tagged , , , | 109 Comments

Ionospheric airglow signature of tsunami waves confirmed

From the University of Illinois, something quite interesting, long speculated on, now confirmed. Tsunami airglow signature could lead to early detection system Researchers at the University of Illinois have become the first to record an airglow signature in the upper … Continue reading

Posted in Uncategorized | Tagged , | 53 Comments

Contrails – itty bitty icy forcing

From the American Geophysical Union weekly highlights: Estimating climate effects of contrails Condensation trails, or so-called contrails, formed by freezing of ice crystals in the exhaust from aircraft jet engines could affect climate. Like natural cirrus clouds, contrails change atmospheric … Continue reading

Posted in clouds, Weather | Tagged , , | 110 Comments

Clouds, radiative forcing, and climate models – still tweaking

As most readers know, clouds are still poorly understood and under-represented in climate models. This new research may help. From: DOE/Pacific Northwest National Laboratory Effect of cloud-scattered sunlight on earth’s energy balance depends on wavelength of light Accounting for wavelength … Continue reading

Posted in clouds, Modeling | Tagged , , , | 70 Comments

Final words on the 2010 Russian heat wave from AGU: weather, predictable

The map above, from the NASA Earth Observatory Picture of the Day website, shows how the temperature on July 27 departed from the 2000 to 2008 average. Download large image (1 MB, JPEG) Deadly 2010 Russian heat wave: Not from climate … Continue reading

Posted in heat wave, Weather | Tagged , | 18 Comments

Yellowstone’s supervolcano – worse than we thought

From http://www.unews.utah.edu via Eurekalert Electric Yellowstone Conductivity image hints volcano plume is bigger than thought SALT LAKE CITY, April 11, 2011 – University of Utah geophysicists made the first large-scale picture of the electrical conductivity of the gigantic underground plume … Continue reading

Posted in Vulcanism | Tagged , , | 72 Comments

Icelandic volcano exonerated for harsh winter of 1783–1784

From AGU’s Geophysical Research Letters:   In June 1783 the Laki volcano in Iceland began to erupt, and continued erupting for months, causing a major environmental disaster. The eruption spewed out toxic sulfuric acid aerosols, which spread over northern latitudes … Continue reading

Posted in Paleoclimatology, Vulcanism | Tagged , | 41 Comments

The minimal solar activity in 2008–2009 and its implications for long‐term climate modeling

This is a new paper in Geophysical Research Letters by C. J. Schrijver, W. C. Livingston, T. N. Woods, and R. A. Mewaldt. WUWT readers may recognize Livingston as the creator of one of the datasets we regularly follow graphically … Continue reading

Posted in Cosmic rays, Science, Solar | Tagged , , , , , , | 204 Comments

Arctic “death spiral” actually more like “zombie ice”

From the AGU Journal Highlights, some news that NSIDC’s “death spiral” has zombie like characteristics, and that the ice may quickly return from the dead, even if the Arctic turned ice free during summer. Nature is more resilient it seems, … Continue reading

Posted in Arctic, Sea ice | Tagged , , , , , | 95 Comments

New Total Solar Irradiation (TSI) baseline value – solar min measured lower in 2008

From a new paper by Dr. Greg Kopp and Dr. Judith Lean, new finding on the solar minimum TSI in 2008: The most probable value of total solar irradiance representative of solar minimum is 1360.8 ± 0.5 W m−2, lower … Continue reading

Posted in Science, Solar | Tagged , , , , , | 66 Comments

Bangladesh, the Poster Child

Guest post by: B.Quartero Bangladesh, the largest Delta in the world, has been the poster child of a scary sea level rise story ever since “An Inconvenient Truth”. There is much to be concerned about in Bangladesh, and flooding is … Continue reading

Posted in Land use land cover change, Sea level | Tagged , , , , , , , | 56 Comments

Confirmation of Solar forcing of the semi-annual variation of length-of-day

This essay by Paul Vaughn is very interesting because it shows correlation between cosmic rays (via neutron count), terrestrial angular momentum, and length of day. – Anthony Semi-Annual Solar-Terrestrial Power Guest Post by Paul L. Vaughan, M.Sc. Using different methods, … Continue reading

Posted in Solar | Tagged , , | 70 Comments

NASA climate model shows plants slow Global Warming by creating a new negative feedback in response to increased CO2

  From NASA Earth Science news: A new NASA computer modeling effort has found that additional growth of plants and trees in a world with doubled atmospheric carbon dioxide levels would create a new negative feedback – a cooling effect … Continue reading

Posted in Carbon dioxide, Climate News, Modeling | Tagged , , , , | 106 Comments