William Connolley | |
---|---|
Born | William Michael Conolley 12 April 1964 |
Nationality | British |
Alma mater | University of Oxford |
Occupation | Software engineer |
Years active | 2003–present |
Known for | Blog activity about climate change |
Political party | Green Party of England and Wales |
Children | 2 |
William Michael Connolley (born 12 April 1964) is a British software engineer, writer, and blogger on climatology. Until December 2007 he was Senior Scientific Officer in the Physical Sciences Division in the Antarctic Climate and the Earth System project at the British Antarctic Survey, where he worked as a climate modeller. After that he became a software engineer for Cambridge Silicon Radio.
Connolley received national press attention over several years for his involvement in editing Wikipedia articles relating to climate change. Connolley was a member of the RealClimate website until 2007 and now operates a website and blog that discuss climate issues. He has also been active in local politics as a member of the Green Party.
Connolley holds an undergraduate degree in mathematics and a DPhil from St Edmund Hall at the University of Oxford for his work on numerical analysis. [1] He works as a software engineer for Cambridge Silicon Radio, designing embedded firmware. [2]
Until December 2007, Connolley was Senior Scientific Officer in the Physical Sciences Division in the Antarctic Climate and the Earth System project at the British Antarctic Survey. His research focused on sea ice measurement and modelling, including the HadCM3 global climate model (GCM). Connolley also worked on the validation of satellite data against more direct upward looking sonar observations in the Weddell Sea area. [3] [4] He concluded that Bootstrap data produced a better fit than data produced by NASA and that GCM predictions are more realistic than previously thought. [4]
Connolley served as a parish councillor in the village of Coton (near Cambridge, England) until May 2007. [5] He was also a Green Party candidate for South Cambridgeshire District Council and Cambridgeshire County Council. [6]
Connolley has authored and co-authored articles and literature reviews in the field of climatological research, with an emphasis on the climate of the Antarctic and the study of sea ice. [7] Connolley was a member of the RealClimate website until 2007, [8] [9] and he operates a website and blog that discuss climate issues. [10] [11] His blogs and one of his papers conclude that a majority of scientific papers in the 1970s predicted warming, not global cooling. [12] [13] [14] The Christian Science Monitor noted in 2007 that on Connolley's "personal website, and as a contributor to RealClimate.org (a website written and edited by working climate scientists), he's authored a number of articles that try to clarify the place of global cooling in the history of science" and commented, "Connolley and Schneider say that if the public had looked directly at the peer-reviewed scientific papers, and not at the popular media coverage, they would not have found any basis for a global-cooling scare." [15]
Connolley began editing Wikipedia in 2003 [16] and served as a Wikipedia administrator from 2006 until 2009. [17] He has been cited and quoted in the media regarding these activities, especially with respect to his editing in the area of climate change. He was cited by Nature magazine, in their December 2005 review of the reliability of Wikipedia, as an example of an expert who edits Wikipedia. [18] Nature quoted Connolley, in 2006, as saying that "some scientists have become frustrated with Wikipedia" but that "conflict can sometimes result in better articles". [19]
In July 2006, a New Yorker article described him as briefly becoming "a victim of an edit war over the entry on global warming", in which a sceptic repeatedly "watered down" the article's explanation of the greenhouse effect. [20] Connolley told the magazine that Wikipedia "gives no privilege to those who know what they're talking about". [20] Various books have cited Connolley as an example of how expert editors on Wikipedia are given "no more credence" than anonymous editors of the site. [21] [22] [23] In 2007, The Sunday Times of London ran an interview of author Andrew Keen that discussed Connolley and his Wikipedia editing. It identified Connolley as "an expert on global warming", stating: "After trying to correct inaccuracies Connolley was accused of trying to remove 'any point of view which does not match his own'. Eventually he was limited to making just one edit a day." The article stated that Wikipedia's Arbitration Committee "gave no weight to [Connolley's] expertise, and treated him with the same credibility as his anonymous opponent." [24] [25] [26]
Two internal disputes at Wikipedia in which Connolley was involved received additional attention. A 2005 Wikipedia climate change dispute involving breaches of etiquette, rather than content bias, was cited by a paper in the Journal of Science Communication as an example that "resonated deeply as it highlighted what can befall respected experts who wade into controversial wiki-waters". The paper stated that Connolley did "not suffer...fools gladly". [27] The same paper noted a 2009 Wikipedia arbitration in which it was concluded that Connolley had used administrator privileges to his own advantage in content disputes, [28] [ circular reference ] and these privileges were removed. [27] Other academic papers have discussed Connolley's editing activities on Wikipedia and the dispute resolution process as it has been applied to him. [29]
Connolley has two children. [30]
The Antarctic Circumpolar Current (ACC) is an ocean current that flows clockwise from west to east around Antarctica. An alternative name for the ACC is the West Wind Drift. The ACC is the dominant circulation feature of the Southern Ocean and has a mean transport estimated at 100–150 Sverdrups, or possibly even higher, making it the largest ocean current. The current is circumpolar due to the lack of any landmass connecting with Antarctica and this keeps warm ocean waters away from Antarctica, enabling that continent to maintain its huge ice sheet.
The cryosphere is an all-encompassing term for the portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground. Thus, there is a wide overlap with the hydrosphere. The cryosphere is an integral part of the global climate system with important linkages and feedbacks generated through its influence on surface energy and moisture fluxes, clouds, precipitation, hydrology, atmospheric and oceanic circulation.
The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who visited this area in 1841. To the west of the sea lies Ross Island and Victoria Land, to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land, while the southernmost part is covered by the Ross Ice Shelf, and is about 200 miles (320 km) from the South Pole. Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of 637,000 square kilometres (246,000 sq mi).
The Antarctic Circumpolar Wave (ACW) is a coupled ocean/atmosphere wave that circles the Southern Ocean in approximately eight years at 6–8 cm/s (2.4–3.1 in/s). Since it is a wave-2 phenomenon at each fixed point in space a signal with a period of four years is seen. The wave moves eastward with the prevailing currents.
The Eemian was the interglacial period which began about 130,000 years ago at the end of the Penultimate Glacial Period and ended about 115,000 years ago at the beginning of the Last Glacial Period. It corresponds to Marine Isotope Stage 5e. Although sometimes referred to as the "last interglacial", it was the second-to-latest interglacial period of the current Ice Age, the most recent being the Holocene which extends to the present day. The prevailing Eemian climate was, on average, around 1 to 2 degrees Celsius warmer than that of the Holocene. During the Eemian, the proportion of CO2 in the atmosphere was about 280 parts per million.
Dansgaard–Oeschger events, named after palaeoclimatologists Willi Dansgaard and Hans Oeschger, are rapid climate fluctuations that occurred 25 times during the last glacial period. Some scientists say that the events occur quasi-periodically with a recurrence time being a multiple of 1,470 years, but this is debated. The comparable climate cyclicity during the Holocene is referred to as Bond events.
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that covers West Antarctica, the portion of Antarctica on the side of the Transantarctic Mountains that lies in the Western Hemisphere. The WAIS is classified as a marine-based ice sheet, meaning that its bed lies well below sea level and its edges flow into floating ice shelves. The WAIS is bounded by the Ross Ice Shelf, the Ronne Ice Shelf, and outlet glaciers that drain into the Amundsen Sea.
The Antarctic ice sheet is one of the two polar ice caps of Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth, with an average thickness of over 2 kilometers. Separate to the Antarctic sea ice it covers an area of almost 14 million square kilometres and contains 26.5 million cubic kilometres of ice. A cubic kilometer of ice weighs approximately 0.92 metric gigatonnes, meaning that the ice sheet weighs about 24,380,000 gigatonnes. It holds approximately 61% of all fresh water on Earth, equivalent to about 58 meters of sea level rise if all the ice were above sea level. In East Antarctica, the ice sheet rests on a major land mass, while in West Antarctica the bed can extend to more than 2,500 m below sea level.
Gavin A. Schmidt is a British climatologist, climate modeler and Director of the NASA Goddard Institute for Space Studies (GISS) in New York, and co-founder of the award-winning climate science blog RealClimate.
Jonathan Michael Gregory is a climate modeller working on mechanisms of global and large-scale change in climate and sea level on multidecadal and longer timescales at the Met Office and the University of Reading.
A Heinrich event is a natural phenomenon in which large groups of icebergs break off from the Laurentide Ice Sheet and traverse the Hudson Strait into the North Atlantic. First described by marine geologist Hartmut Heinrich, they occurred during five of the last seven glacial periods over the past 640,000 years. Heinrich events are particularly well documented for the last glacial period but notably absent from the penultimate glaciation. The icebergs contained rock mass that had been eroded by the glaciers, and as they melted, this material was dropped to the sea floor as ice rafted debris forming deposits called Heinrich layers.
The Antarctic bottom water (AABW) is a type of water mass in the Southern Ocean surrounding Antarctica with temperatures ranging from −0.8 to 2 °C (35 °F) and absolute salinities from 34.6 to 35.0 g/kg. As the densest water mass of the oceans, AABW is found to occupy the depth range below 4000 m of all ocean basins that have a connection to the Southern Ocean at that level.
Richard Blane Alley is an American geologist and Evan Pugh Professor of Geosciences at Pennsylvania State University. He has authored more than 240 refereed scientific publications about the relationships between Earth's cryosphere and global climate change, and is recognized by the Institute for Scientific Information as a "highly cited researcher."
Polar amplification is the phenomenon that any change in the net radiation balance tends to produce a larger change in temperature near the poles than in the planetary average. This is commonly referred to as the ratio of polar warming to tropical warming. On a planet with an atmosphere that can restrict emission of longwave radiation to space, surface temperatures will be warmer than a simple planetary equilibrium temperature calculation would predict. Where the atmosphere or an extensive ocean is able to transport heat polewards, the poles will be warmer and equatorial regions cooler than their local net radiation balances would predict. The poles will experience the most cooling when the global-mean temperature is lower relative to a reference climate; alternatively, the poles will experience the greatest warming when the global-mean temperature is higher.
ECHAM is a general circulation model (GCM) developed by the Max Planck Institute for Meteorology, one of the research organisations of the Max Planck Society. It was created by modifying global forecast models developed by ECMWF to be used for climate research. The model was given its name as a combination of its origin and the place of development of its parameterisation package, Hamburg. The default configuration of the model resolves the atmosphere up to 10 hPa, but it can be reconfigured to 0.01 hPa for use in studying the stratosphere and lower mesosphere.
During the Pliocene epoch, the Earth's climate became cooler and drier, as well as more seasonal, marking a transition between the relatively warm Miocene to the cooler Pleistocene.
Climate change feedbacks are effects of global warming that amplify or diminish the effect of forces that initially cause the warming. Positive feedbacks enhance global warming while negative feedbacks weaken it. Feedbacks are important in the understanding of climate change because they play an important part in determining the sensitivity of the climate to warming forces. Climate forcings and feedbacks together determine how much and how fast the climate changes. Large positive feedbacks can lead to tipping points—abrupt or irreversible changes in the climate system—depending upon the rate and magnitude of the climate change.
The Ross Embayment is a large region of Antarctica, comprising the Ross Ice Shelf and the Ross Sea, that lies between East and West Antarctica.
CICE is a computer model that simulates the growth, melt and movement of sea ice. It has been integrated into many coupled climate system models as well as global ocean and weather forecasting models and is often used as a tool in Arctic and Southern Ocean research. CICE development began in the mid-1990s by the United States Department of Energy (DOE), and it is currently maintained and developed by a group of institutions in North America and Europe known as the CICE Consortium. Its widespread use in earth system science in part owes to the importance of sea ice in determining Earth's planetary albedo, the strength of the global thermohaline circulation in the world's oceans, and in providing surface boundary conditions for atmospheric circulation models, since sea ice occupies a significant proportion (4-6%) of earth's surface. CICE is a type of cryospheric model.
Amelia E. Shevenell is an American marine geologist who specializes in high-latitude paleoclimatology and paleoceanography. She is currently a Professor in the College of Marine Science at the University of South Florida. She has made notable contributions to understanding the history of the Antarctic ice sheets and published in high-impact journals and, as a result, was awarded full membership of Sigma Xi. She has a long record of participation in international ocean drilling programs and has served in leadership positions of these organizations. Shevenell served as the elected Geological Oceanography Council Member for The Oceanography Society (2019-2021).
through 2017