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SPECIAL TOPICS

Climate Change

Published: November 2009
 

The baseline time span for this database is (publication years) 1999-June 30, 2009 from the third bimonthly update (a 10-year + 6-month period). The resulting database contained 27,989 (10 years) and 11,428 (2 years) papers; 53,136 authors; 176 nations; 2,494 journals; and 10,801 institutions. See additional information below in the overview & methodology sections.

Top 20 Papers

  10-year period
  2-year period

Top 20 Overall

  Authors
  Institutions
  Journals
  Nations

Research Front Map

  Map title: CLIMATE CHANGE AND SPECIES DISTRIBUTIONS
  Map title:  EARLY EOCENE GLOBAL WARMING EVENTS
  Map title: CLIMATE CHANGE SIMULATIONS
  Map title: CLIMATE CHANGE AFFECTS MARINE FISHES

Time Series

  1- & 5-year periods

Field Distribution

Interviews

  Interviews, first-person essays, and profiles about people in a wide variety of fields which pertain to this special topic of Climate Change.
   

OVERVIEW

According to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC)1, which was completed in 2007, the observed increases in temperature around the globe are more than likely due to human activities, particularly with regard to greenhouse gas emissions, and the warming and consequent rise in sea level will continue for centuries, even if greenhouse gas concentrations were to be stabilized. The IPCC report stated that there will be more frequent warm spells, heat waves, and heavy rainfall with a confidence of greater than 90%, and an increase in droughts, tropical cyclones, and extreme high tides with a confidence of greater than 66%.

Over the years (January 2002 and September 2006), ScienceWatch.com has analyzed climate change in the literature, and this month, we're taking another look at the topic over the past decade and over the past two years. The initial data pool was created using the search terms "climate change*" or "global warm*" in titles, abstracts, and keywords of original articles, reviews, and proceedings papers published between January 1, 1999 and June 30, 2009. To make the paper lists more targeted to research specifically dealing with climate change, we restricted the search further with the same keywords, but only in the titles.

Over the past decade, the effects of climate change on many aspects of life on Earth have been explored, including terrestrial ecosystem structure and function, extinction risk, and the future of freshwater resources. One study showed that climate change was a factor in the disappearance of 20 species of frogs and toads in the Monteverde cloud forest of Costa Rica. Several papers deal with climate modeling and atmospheric circulation, and although some conclude that changes in climate and circulation could be in part due to natural variability, there is also little doubt that anthropogenic causes also play a role. Highly cited review papers cover topics including ecological and evolutionary responses to climate change, human impacts, species distributions, and the effects of climate change on one of the planet's most delicate ecosystems—coral reefs.

The two-year list covers many of the same topics as the 10-year list, such as the effects of climate change on coral reefs and attributing climate change to anthropogenic causes, but it also introduces some new concepts. These include growing concern over black carbon in the atmosphere, prioritizing climate change adaptations for food security purposes, the idea that nitrogen oxide release from agro-biofuel production might negate the benefit of replacing fossil fuels, and the possibility of developing programs for assisted migration for animals affected by climate change.

1 Source: Intergovernmental Panel on Climate Change.

Methodology: The baseline time span for this database is (publication years) 1999-June 30, 2009 from the third bimonthly update (a 10-year + 6-month period). The resulting database contained 27,989 (10 years) and 11,428 (2 years) papers; 53,136 authors; 176 nations; 2,494 journals; and 10,801 institutions.

Rankings: Once the database was in place, it was used to generate list of authors, journals, institutions, and nations. Rankings for author, journal, institution, and country are listed in three ways: according to total cites, total papers, and total cites/paper*. The paper thresholds and corresponding percentages used to determine scientist, institution, country, and journal rankings according to total cites/paper, and total papers respectively are as follows:

Entity Authors Institutions Nations Journals
Thresholds 12 109 11 5
Percentage: 1% 1% 50% 50%
*Unless otherwise specified, all rankings have a 5 paper threshold for all measures.

      



Analyses : Special Topics : Climate Change
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