Tag Archives: global warming

Marcott Study

Posted on March 22, 2013 by Clive Best

There has been much media interest in a recent paper by Marcott et. al “A Reconstruction of Regional and Global Temperature for the Past 11,300 Years” published in Science. It seemingly shows that following a slow cooling over the last … Continue reading →

Posted in AGW, Climate Change, climate science, Ice Ages, Science | Tagged , | 1 Comment

Water Vapor Decline Cools the Earth: NASA Satellite Data

Posted on March 6, 2013 by Clive Best

Guest post by Ken Gregory P.Eng., Friends of Science.org Original article at http://www.friendsofscience.org/index.php?id=483 An analysis of NASA satellite data shows that water vapor, the most important greenhouse gas, has declined in the upper atmosphere causing a cooling effect that is … Continue reading →

Posted in AGW, Climate Change, climate science, Science, Water Feedback | Tagged , , , | 1 Comment

Radiative Forcing of CO2

Posted on February 27, 2013 by Clive Best

This post examines how radiative forcing depends on CO2 concentrations in the atmosphere. In CO2 greenhouse demystified, we calculated the effective emission height where “thermal” photons escape to space . This height depends on the lapse rate temperature and defines … Continue reading →

Posted in AGW, Climate Change, climate science, GCM, Physics, Science | Tagged , , , | 2 Comments

Which wins out? Convection or Radiation

Posted on December 13, 2012 by Clive Best

“Convection can only begin once it becomes more energy efficient than radiating heat directly to space. Some refractive/absorbent atmosphere is needed to tip the energy balance.” I recently wrote that statement on a blog discussion. The convective flow of heat to … Continue reading →

Posted in AGW, Climate Change, climate science, Physics, Science | Tagged , , | 7 Comments

Met Office Statistics

Posted on October 25, 2012 by Clive Best

The UK Met Office seem determined to stand by their claim made in  response to the David Rose article in the Mail on Sunday: ‘The linear trend from August 1997 (in the middle of an exceptionally strong El Nino) to … Continue reading →

Posted in Climate Change, climate science, Institiutions, Science, UK Met Office | Tagged , , | 23 Comments

Global exaggeration ?

Posted on June 14, 2012 by Clive Best

I rather suspect that climate scientists have consciously or sub-consciously tended to exaggerate future scenarios in order to boost AGW in the public consciousness as the biggest single threat to mankind. On balance, it now seems far more likely that … Continue reading →

Posted in AGW, Climate Change, climate science, GCM, Science | Tagged , , , | 1 Comment

CRU’s Arctic fix

Posted on March 28, 2012 by Clive Best

How 2005 & 201o got “ranked” the warmest years. The new temperature data from  CRUTEM4 has added 628 new weather stations, including strangely enough over 50 from Kyrgyzstan. Most  of these stations are in far northern latitudes. There are none in … Continue reading →

Posted in AGW, Climate Change, climate science, Science | Tagged , , | 8 Comments

A first look at CRUTEM4

Posted on March 21, 2012 by Clive Best

UPDATE 23/3/12: I have discovered that 110 stations have changed numbering between CRUTEM3 and CRUTEM4 ! Therefore the map below has been revised to show just the new and discarded stations excluding those renumbered. The list of renumbered stations can … Continue reading →

Posted in AGW, Climate Change, climate science, Science | Tagged , | 15 Comments

A Study of Hadley-CRU weather station data

Posted on February 2, 2012 by Clive Best

Do systematic effects caused by the geographic location of weather stations effect global temperature anomalies ? I have been studying the station temperature data used in the Hadley Cru global temperature analysis. These data consist of all the land based … Continue reading →

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Global Weather Stations earlier than 1860

Posted on January 28, 2012 by Clive Best

This is a tool for accessing long term weather data sourced by Hadley Centre and CRU. The map shows the location of those stations with data going back earlier than 1860 (See next post for the others). “Mouse over” gives … Continue reading →

Posted in Climate Change, climate science, Science | Tagged , | 6 Comments