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How to Cite a Case Study in APA, MLA, or Chicago

When citing a case study, the format in MLA and APA is similar to that of a report, and in Chicago style, it is similar to that of a book. For all three citation styles, you will need the name of the author(s), the title of the case study, the year it was published, the publishing organization/publisher, and URL (if applicable). The templates and examples below will demonstrate how to cite a case study in MLA, APA, and Chicago styles.

Author Last Name, Author First Name.  Title of Case Study . Edition (if applicable), volume number (if applicable), Publisher, year of publication, URL without http:// or https:// (if applicable).

Hill, Linda A., et al. HCL Technologies (A). Rev. edition, Harvard Business School, 2008, www.hbs.edu/faculty/Pages/item.aspx?num=34784.

In-text Citation:

(Author Last Name(s) page #)

(Hill et al. 8)

Author Last Name, Author Initial. (Publication Year). Title of Case Study (Case # if applicable). Publishing Organization. URL

Hill, L., Khanna, T., & Stecker, E. (2008). HCL Technologies (A) (Case 408-004). Harvard Business School. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784

(Author Last Name, Publication Year)

(Hill et al., 2008)

Notes-bibliography style

Author Last Name, First Name.  Title of the Case Study . Publishing City: Publishing Organization, Publication Year. URL.

Hill, Linda A., Tarun Khanna, and Emily Stecker. HCL Technologies (A).  Boston: Harvard Business School, 2008. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

1. Author First Name Last Name, Title of the Case Study (Publishing City: Publishing Organization, Publication Year), URL.

1. Linda A. Hill, Tarun Khanna, and Emily Stecker, HCL Technologies (A) ( Boston: Harvard Business School, 2008), https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

Author-date style

Author Last Name, First Name. Publication Year. Title of the Case Study . Publishing City: Publishing Organization. URL.

Hill, Linda A., Tarun Khanna, and Emily Stecker. 2008. HCL Technologies (A).  Boston: Harvard Business School. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

In-text citation: 

(Author Last Name Publication Date)

(Holl, Khanna, and Stecker 2008)

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How to Cite a Case Study

Last Updated: March 6, 2024

This article was co-authored by wikiHow staff writer, Jennifer Mueller, JD . Jennifer Mueller is a wikiHow Content Creator. She specializes in reviewing, fact-checking, and evaluating wikiHow's content to ensure thoroughness and accuracy. Jennifer holds a JD from Indiana University Maurer School of Law in 2006. This article has been viewed 37,364 times.

Particularly in research for business studies or papers in the social sciences, you may want to cite a case study completed by a university or other organization. While case studies have titles and publication information like other articles, they often have a unique case study number that is typically included in your citation. While Chicago citation style is most frequently used in business schools, you may also use the American Psychological Association (APA) or Modern Language Association (MLA) style.

Sample Citations

• Example: Lee, Stan.
• If there is more than one author, list the additional authors' names in first-middle initial-last format. Separate author's names with commas, with the word "and" before the last author's name.

• Example: Lee, Stan. "DC Comics in 2016." HBS No. 999-111.

• Example: Lee, Stan. "DC Comics in 2016." HBS No. 999-111. Boston: Harvard Business School Publishing, 2017.

• Example: Lee, Stan. "DC Comics in 2016." HBS No. 999-111. Boston: Harvard Business School Publishing, 2017. http://hbsp.harvard.edu, accessed July 2018.

• Print example: Stan Lee, "DC Comics in 2016," HBS No. 999-111 (Boston, Harvard Business School Publishing, 2017), p. 14.
• Online example: Stan Lee, "DC Comics in 2016," HBS No. 999-111 (Boston, Harvard Business School Publishing, 2017), http://hbsp.harvard.edu, accessed July 2018.

• Example: Lee, S.
• Separate the names of multiple authors with commas, placing an ampersand before the last author's name.

• Example: Lee, S. (2017).
• If there is no year of publication listed, use the abbreviation "n.d." in the parentheses.

• Example: Lee, S. (2017). DC Comics in 2016 .

• Example: Lee, S. (2017). DC Comics in 2016 . HBS No. 999-111.

• Example: Lee, S. (2017). DC Comics in 2016 . HBS No. 999-111. Boston, MA: Harvard Business School Publishing.

• Example: (Lee, 2017).

• If there are 2 authors, place the word "and" between their names. For 3 or more, use commas with the word "and" before the final author. After the first author, list subsequent authors with their first name followed by their last name. For example: Lee, Stan and Clark Kent.

• Example: Lee, Stan. DC Comics in 2016. Case Study.

• Example: Lee, Stan. DC Comics in 2016. Case Study. Boston. Harvard Business School Publishing, 2017.
• Note that unlike many other citation styles, the unique case study number is not necessarily included for MLA citations. Ask your instructor or supervisor if they want this information included in your citation.

• Print example: Lee, Stan. DC Comics in 2016. Case Study. Boston. Harvard Business School Publishing, 2017. Print.
• Web example: Lee, Stan. DC Comics in 2016. Case Study. Boston. Harvard Business School Publishing, 2017. Web. 17 July 2018.
• If you accessed the case study online, you may put the URL of the case study. However, this isn't required by MLA style. Ask your instructor or supervisor for their preference.

• Example: (Lee 27).

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• ↑ https://guides.library.ualberta.ca/apa-citation-style/case-studies
• ↑ http://libanswers.snhu.edu/faq/128490
• ↑ http://libanswers.walsh.edu/faq/147917
• ↑ http://maag.guides.ysu.edu/businesscitations/mla

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How do I cite a case study?

According to APA, case studies do not have their own citation style or process, instead a case study is typically cited according to its source type -- often as an article. See below for some examples.

Journal Article/Case Study with DOI (Print or Electronic)

Author Last Name, First Initial. Second Initial.(Year). Title of article. Journal Title , Volume Number (Issue Number), Page Numbers. http://dx.doi.org/xx.xxxxxxx.xx.x

Wheeler, B. J., & Taylor, B. J. (2012). Successful management of allergy to the insulin excipient metacresol in a child with type 1 diabetes: a case report.  Journal Of Medical Case Reports ,  6 (1), 263-266. http://dx.doi.org/10.1186/1752-1947-6-263

Case Study with a DOI from a Library Database (not from a Journal)

Author Last Name, First Initial. Second Initial. (Year). Title of article. Publisher . http://dx.doi.org/xx.xxxxxxx.xx.x

Example from SAGE Cases:

Ravichandran, N., & Narayanaswami, S. (2016). Security management at the national institute of management: To outsource or insource? (A). SAGE Publications . https://www.doi.org/10.4135/9781526438379

Journal Article/Case Study Without a DOI from a Library Database

Author Last Name, First Initial. Second Initial., & Author Last Name, First Initial. Second Initial. (Year). Title of article. Journal Title, Volume Number (Issue Number), Page Numbers. Permanent link/URL

Pedemont, K., Jolly, N., & Rose, L. (2011). A child with Myasthenia Gravis and defective accommodation: A case study.  Australian Orthoptic Journal ,  43 (2), 4–8.  https://search.ebscohost.com/login.aspx?direct=true&AuthType=ip,shib&db=a9h&AN=87023984&site=eds-live&custid=s9076023

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Harvard Style Guide: Case studies

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• Group or individual assignments
• Legal Cases (Law Reports)
• No date of publication
• Personal communications
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• Citing same author, multiple works, same year

Back to Academic Integrity guide

Reference : Author/editor Last name, Initials. (Year) 'Title of case study' [Case Study], Journal Title, Volume (Issue), pp. page numbers. Available at: URL [Accessed Day Month Year].

Ofek, E., Avery, J., Rudolph, S., Martins Gomes, V., Saadat, N., Tsui, A., & Shroff, Y. (2014) 'Case study second thoughts about a strategy shift' [Case Study], Harvard Business Review , 92(12), pp. 125-129. Available at: http://search.ebscohost.com/login.aspx?direct=true&db=bth&AN=99621003&site=ehost-live [Accessed 10 December 2014].

In-Text-Citation :

• (Author last name, Year)
• Author last name (Year)...
• In their case study Ofek et al. (2014) describe how marketing to the young generation...

Still unsure what in-text citation and referencing mean? Check here . 

Still unsure why you need to reference all this information? Check here . 

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MLA Citation Guide (MLA 9th Edition): Case Studies

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Case Studies

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• URL: https://library.senecapolytechnic.ca/mla

How to Cite a Case Study in APA: A Comprehensive Guide

If you’re writing an academic paper, you may need to cite a case study. But how do you do that? This guide will explain everything you need to know about citing a case study in APA format.

Table of Contents

What is APA?

APA stands for American Psychological Association. It is a style guide used by many academic disciplines, including psychology, sociology, and business. The purpose of the APA style is to provide a consistent format for academic writing, making it easier for readers to understand and follow the author’s argument.

Why is it important to cite a case study?

Citing a case study is important for several reasons. First, it gives credit to the original author for their work. Second, it allows readers to find the source if they want to learn more. Finally, it adds credibility to your work by demonstrating that you have researched and referenced other relevant studies.

How to cite a case study in APA format

Here are the steps you need to follow to cite a case study in APA format:

Step 1: Start with the author’s last name and first initial.

The first step in citing a case study is to list the author’s last name and first initial. For example Smith, J.

Step 2: Include the year of publication in parentheses.

Next, you need to include the year of publication in parentheses. For example: (2018).

Step 3: Provide the title of the case study in italics.

After the year of publication, you need to provide the title of the case study in italics. For example The impact of social media on adolescent mental health.

Step 4: Add the name of the publisher.

The next step is to add the name of the publisher. For example Harvard Business Review Press.

Step 5: Include the DOI or URL.

Finally, you need to include the DOI or URL where the case study can be found. For example https://doi.org/10.1145/1234567.1234567

Here’s what the final citation should look like:

Smith, J. (2018). The impact of social media on adolescent mental health. Harvard Business Review Press. https://doi.org/10.1145/1234567.1234567

What to do if there is no DOI or URL

If you cannot find a DOI or URL for the case study, you can omit it from the citation. In that case, you should include the name of the database where you found the case study instead. For example:

Smith, J. (2018). The impact of social media on adolescent mental health. Harvard Business Review Press. Academic Search Complete.

Tips for citing a case study in APA format

• Always check the specific requirements of your instructor or publisher to ensure that you are following their guidelines correctly.
• Double-check your citations to make sure that you have included all the necessary information.
• If you are citing multiple case studies from the same author or publisher, you can use a shortened version of the citation after the first one. For example Smith (2018, p. 25).

Citing a case study in APA format may seem daunting at first, but it is quite simple once you know the steps. By following the guidelines in this article, you can ensure that your citations are accurate and complete and that you are giving credit to the original authors for their work.

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FAQ: How do I cite a Harvard Business Review case study in APA Style?

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Last Updated: Jun 22, 2023 Views: 73406

When citing case studies in APA style you'll want to include the typical citation elements and apply general formatting guidelines. The following are examples of how case studies could be cited in APA style, but be sure to check with your professor about how they'd like you to cite case studies in your work.

In-Text Citations

Kotter (1990) explains the steps British Airways took to reverse a horrible customer service atmosphere and financial crisis.

… as the case study concluded (Bisell & Tram, 2007) .

Groysberg and Connolly (2015) concluded in their case study that….

Reference List

Example (don't forget to indent the second and subsequent lines):

Author(s). (Year). Title of case study . HBS No. number of case study. Publisher.

Example, one author:

Kotter, J. (1990). Changing the culture at British Airways . HBS No. 491-009. Harvard Business School Publishing.

Example, two authors:

Groysberg, B., & Connolly, K. (2015). BlackRock: Diversity as a driver for success . HBS No. 415-047. Harvard Business School Publishing.

More Information

• APA Guide  (Shapiro Library)
• APA Style Blog This link opens in a new window (APA)

Further Help

This information is intended to be a guideline, not expert advice. Please be sure to speak to your professor about the appropriate way to cite sources in your class assignments and projects.

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To access Academic Support, visit your Brightspace course and select “Tutoring and Mentoring” from the Academic Support pulldown menu.

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To access help with citations and more, visit the Academic Support via modules in Brightspace:

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Answered By: Katie Hutchison Last Updated: Oct 26, 2016     Views: 350926

Harvard Business Review - Case Studies

This format would apply to any business case including Harvard Business Review, Ivey and MIT Sloane cases:

Author(s). Name of the case. Business Case. City. Publisher. Date. Format (Print or Web) If your format is Web include the date it was accessed. EXAMPLE: Yoffe, David B. and Renee Kim. Apple Inc in 2010. Case Study. Boston. Harvard Business Publishing, 2010. Web. 28 October 2010.

  APA Format

Harvard Business School Case Study

Citation elements required and general format:

Author(s). (Year). Title of case study . HBS No. number of case study. City, State abbreviation or Country of publication: Publisher. EXAMPLES:

One Author:

Smith, S. (2003). Leadership. HBS No. 7-806-122. Boston, MA: Harvard Business School Publishing.

Two Authors:

Eisenmann, T., & Herman, K. (2006). Google, Inc. HBS No. 9-806-105. Boston, MA: Harvard Business School Publishing.

  In-text citation examples – Harvard Business School Case Study

APA in-text citations include the author’s last name, the year of publication, and the page number (for quotes), either as part of the text of your paper or in parentheses.

…as the case study concluded (Smith, 2003, p. 6).

Smith reported (2003, p. 6) that the data was flawed.

Eisenmann and Herman did agree on the research findings (2006, p. 11).

… as both researchers agreed (Eisenmann & Herman, 2006, p. 11).

Chicago Manual of Style ( PDF selections copied from Grove City College Henry Buhl Library)

CASES (PRINTED)   

Footnote   

Mikołaj  Jan  Piskorski  and David Chen, “Twitter,” HBS No. 710-455 (Boston: Harvard Business School Publishing, 2010), p. 8.   

Bibliography   

Piskorski ,  Mikołaj  Jan, and David Chen. “Twitter.” HBS No. 710-455. Boston: Harvard Business School Publishing, 2010.   

CASES (ONLINE)   

On the Web   

Amy C. Edmondson and Laura R. Feldman, “Group Process in the Challenger Launch Decision (A),” HBS No. 603-068 (Boston: Harvard Business School Publishing, 2002), http://hbsp.harvard.edu, accessed October 2012.   

Edmondson, Amy C., and Laura R. Feldman. “Group Process in the Challenger Launch Decision (A).” HBS No. 603-068. Boston: Harvard Business School Publishing, 2002. http://hbsp. harvard.edu, accessed September 2007.   

Michael J. Enright et al., “Daewoo and the Korean Chaebol,” University of Hong Kong case no. HKU143 (University of Hong Kong, August 2001), via Harvard Business Publishing, http://hbsp.harvard.edu/, accessed March 2007.   

Bibliography   

Enright, Michael J., et al. “Daewoo and the Korean Chaebol.” University of Hong Kong case no. HKU143 (University of Hong Kong, August 2001). Harvard Business Publishing. http://hbsp.harvard.edu/, accessed March 2007.   

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How to cite “The art of case study research” by Robert E. Stake

Apa citation.

Formatted according to the APA Publication Manual 7 th edition. Simply copy it to the References page as is.

If you need more information on APA citations check out our APA citation guide or start citing with the BibguruAPA citation generator .

Stake, R. E. (1995). The art of case study research . SAGE Publications.

Chicago style citation

Formatted according to the Chicago Manual of Style 17 th edition. Simply copy it to the References page as is.

If you need more information on Chicago style citations check out our Chicago style citation guide or start citing with the BibGuru Chicago style citation generator .

Stake, Robert E. 1995. The Art of Case Study Research . Thousand Oaks, CA: SAGE Publications.

MLA citation

Formatted according to the MLA handbook 9 th edition. Simply copy it to the Works Cited page as is.

If you need more information on MLA citations check out our MLA citation guide or start citing with the BibGuru MLA citation generator .

Stake, Robert E. The Art of Case Study Research . SAGE Publications, 1995.

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BibGuru offers more than 8,000 citation styles including popular styles such as AMA, ASA, APSA, CSE, IEEE, Harvard, Turabian, and Vancouver, as well as journal and university specific styles. Give it a try now: Cite The art of case study research now!

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How to Cite a Case Study in MLA: Works Cited, Text Citation, and Footnote

11 December 2023

last updated

Academic writing is a broad discipline that covers essay writing, report writing, and case study analysis. In all these writings, students use scholarly sources, such as books, case studies, and peer-reviewed journal articles, to validate arguments. Hence, academic writing standards require students to cite sources that they use to present evidence to back up arguments.

General Rules on Citing a Case Study in MLA

If students use a case study as a source and cite it following the MLA format, there some essential details that they must capture in their citation entry. For example, the main elements include:

• Name of the author(s)
• Title of a case study
• Location of a publisher
• Year of publication

Citing a Case Study as a Standalone Document in MLA on the Works Cited Page

If an author has published a case study as a standalone document, a student should cite this source in the Works Cited page in the way they would cite a book. Hence, a citation entry should appear as follows:

Author’s Last Name, First Name. Case Study Title (Title case study and italicized). Location of the Publisher. Publisher, Date. Case Study.  An example would be:

Rosegrant, Susan. Leadership Failure at Wal-Mart: The Curse of Internationalization. Boston, MA: Harvard Business Publishing, 2015.

Citing a Case Study with In-Text Citations and Footnotes in MLA

When it comes to citing a case study in a body of a paper, a student should use a parenthetical citation (in-text) by indicating the last name of the author and the page number in a case study from where the information is picked.

In-Text Citation Example:

If students follow the rules of an MLA format, an in-text citation would appear as (Rosegrant 5).

Footnote Citation Example:

If a student has to use footnotes, a footnote citation example is

Susan Rosegrant, Leadership Failure at Wal-Mart: The Curse of Internationalization (Boston, MA: Harvard Business Publishing, 2015), 5.

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How to cite a video game in apa: main aspects with examples, how to cite a 10-k/annual report in apa and mla.

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There is unequivocal evidence that Earth is warming at an unprecedented rate. Human activity is the principal cause.

• While Earth’s climate has changed throughout its history , the current warming is happening at a rate not seen in the past 10,000 years.
• According to the Intergovernmental Panel on Climate Change ( IPCC ), "Since systematic scientific assessments began in the 1970s, the influence of human activity on the warming of the climate system has evolved from theory to established fact." 1
• Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate.
• From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.

The rate of change since the mid-20th century is unprecedented over millennia.

Earth's climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods, with the end of the last ice age about 11,700 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.

The current warming trend is different because it is clearly the result of human activities since the mid-1800s, and is proceeding at a rate not seen over many recent millennia. 1 It is undeniable that human activities have produced the atmospheric gases that have trapped more of the Sun’s energy in the Earth system. This extra energy has warmed the atmosphere, ocean, and land, and widespread and rapid changes in the atmosphere, ocean, cryosphere, and biosphere have occurred.

Earth-orbiting satellites and new technologies have helped scientists see the big picture, collecting many different types of information about our planet and its climate all over the world. These data, collected over many years, reveal the signs and patterns of a changing climate.

Scientists demonstrated the heat-trapping nature of carbon dioxide and other gases in the mid-19th century. 2 Many of the science instruments NASA uses to study our climate focus on how these gases affect the movement of infrared radiation through the atmosphere. From the measured impacts of increases in these gases, there is no question that increased greenhouse gas levels warm Earth in response.

Scientific evidence for warming of the climate system is unequivocal.

Intergovernmental Panel on Climate Change

Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly 10 times faster than the average rate of warming after an ice age. Carbon dioxide from human activities is increasing about 250 times faster than it did from natural sources after the last Ice Age. 3

The Evidence for Rapid Climate Change Is Compelling:

Global Temperature Is Rising

The planet's average surface temperature has risen about 2 degrees Fahrenheit (1 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. 4 Most of the warming occurred in the past 40 years, with the seven most recent years being the warmest. The years 2016 and 2020 are tied for the warmest year on record. 5 Image credit: Ashwin Kumar, Creative Commons Attribution-Share Alike 2.0 Generic.

The Ocean Is Getting Warmer

The ocean has absorbed much of this increased heat, with the top 100 meters (about 328 feet) of ocean showing warming of 0.67 degrees Fahrenheit (0.33 degrees Celsius) since 1969. 6 Earth stores 90% of the extra energy in the ocean. Image credit: Kelsey Roberts/USGS

The Ice Sheets Are Shrinking

The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost an average of 279 billion tons of ice per year between 1993 and 2019, while Antarctica lost about 148 billion tons of ice per year. 7 Image: The Antarctic Peninsula, Credit: NASA

Glaciers Are Retreating

Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska, and Africa. 8 Image: Miles Glacier, Alaska Image credit: NASA

Snow Cover Is Decreasing

Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and the snow is melting earlier. 9 Image credit: NASA/JPL-Caltech

Sea Level Is Rising

Global sea level rose about 8 inches (20 centimeters) in the last century. The rate in the last two decades, however, is nearly double that of the last century and accelerating slightly every year. 10 Image credit: U.S. Army Corps of Engineers Norfolk District

Arctic Sea Ice Is Declining

Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades. 11 Credit: NASA's Scientific Visualization Studio

Extreme Events Are Increasing in Frequency

The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events. 12 Image credit: Régine Fabri,  CC BY-SA 4.0 , via Wikimedia Commons

Ocean Acidification Is Increasing

Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30%. 13 , 14 This increase is due to humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the ocean. The ocean has absorbed between 20% and 30% of total anthropogenic carbon dioxide emissions in recent decades (7.2 to 10.8 billion metric tons per year). 1 5 , 16 Image credit: NOAA

1. IPCC Sixth Assessment Report, WGI, Technical Summary . B.D. Santer et.al., “A search for human influences on the thermal structure of the atmosphere.” Nature 382 (04 July 1996): 39-46. https://doi.org/10.1038/382039a0. Gabriele C. Hegerl et al., “Detecting Greenhouse-Gas-Induced Climate Change with an Optimal Fingerprint Method.” Journal of Climate 9 (October 1996): 2281-2306. https://doi.org/10.1175/1520-0442(1996)009<2281:DGGICC>2.0.CO;2. V. Ramaswamy, et al., “Anthropogenic and Natural Influences in the Evolution of Lower Stratospheric Cooling.” Science 311 (24 February 2006): 1138-1141. https://doi.org/10.1126/science.1122587. B.D. Santer et al., “Contributions of Anthropogenic and Natural Forcing to Recent Tropopause Height Changes.” Science 301 (25 July 2003): 479-483. https://doi.org/10.1126/science.1084123. T. Westerhold et al., "An astronomically dated record of Earth’s climate and its predictability over the last 66 million years." Science 369 (11 Sept. 2020): 1383-1387. https://doi.org/10.1126/science.1094123

2. In 1824, Joseph Fourier calculated that an Earth-sized planet, at our distance from the Sun, ought to be much colder. He suggested something in the atmosphere must be acting like an insulating blanket. In 1856, Eunice Foote discovered that blanket, showing that carbon dioxide and water vapor in Earth's atmosphere trap escaping infrared (heat) radiation. In the 1860s, physicist John Tyndall recognized Earth's natural greenhouse effect and suggested that slight changes in the atmospheric composition could bring about climatic variations. In 1896, a seminal paper by Swedish scientist Svante Arrhenius first predicted that changes in atmospheric carbon dioxide levels could substantially alter the surface temperature through the greenhouse effect. In 1938, Guy Callendar connected carbon dioxide increases in Earth’s atmosphere to global warming. In 1941, Milutin Milankovic linked ice ages to Earth’s orbital characteristics. Gilbert Plass formulated the Carbon Dioxide Theory of Climate Change in 1956.

3. IPCC Sixth Assessment Report, WG1, Chapter 2 Vostok ice core data; NOAA Mauna Loa CO2 record O. Gaffney, W. Steffen, "The Anthropocene Equation." The Anthropocene Review 4, issue 1 (April 2017): 53-61. https://doi.org/abs/10.1177/2053019616688022.

4. https://www.ncei.noaa.gov/monitoring https://crudata.uea.ac.uk/cru/data/temperature/ http://data.giss.nasa.gov/gistemp

5. https://www.giss.nasa.gov/research/news/20170118/

6. S. Levitus, J. Antonov, T. Boyer, O Baranova, H. Garcia, R. Locarnini, A. Mishonov, J. Reagan, D. Seidov, E. Yarosh, M. Zweng, " NCEI ocean heat content, temperature anomalies, salinity anomalies, thermosteric sea level anomalies, halosteric sea level anomalies, and total steric sea level anomalies from 1955 to present calculated from in situ oceanographic subsurface profile data (NCEI Accession 0164586), Version 4.4. (2017) NOAA National Centers for Environmental Information. https://www.nodc.noaa.gov/OC5/3M_HEAT_CONTENT/index3.html K. von Schuckmann, L. Cheng, L,. D. Palmer, J. Hansen, C. Tassone, V. Aich, S. Adusumilli, H. Beltrami, H., T. Boyer, F. Cuesta-Valero, D. Desbruyeres, C. Domingues, A. Garcia-Garcia, P. Gentine, J. Gilson, M. Gorfer, L. Haimberger, M. Ishii, M., G. Johnson, R. Killick, B. King, G. Kirchengast, N. Kolodziejczyk, J. Lyman, B. Marzeion, M. Mayer, M. Monier, D. Monselesan, S. Purkey, D. Roemmich, A. Schweiger, S. Seneviratne, A. Shepherd, D. Slater, A. Steiner, F. Straneo, M.L. Timmermans, S. Wijffels. "Heat stored in the Earth system: where does the energy go?" Earth System Science Data 12, Issue 3 (07 September 2020): 2013-2041. https://doi.org/10.5194/essd-12-2013-2020.

7. I. Velicogna, Yara Mohajerani, A. Geruo, F. Landerer, J. Mouginot, B. Noel, E. Rignot, T. Sutterly, M. van den Broeke, M. Wessem, D. Wiese, "Continuity of Ice Sheet Mass Loss in Greenland and Antarctica From the GRACE and GRACE Follow-On Missions." Geophysical Research Letters 47, Issue 8 (28 April 2020): e2020GL087291. https://doi.org/10.1029/2020GL087291.

8. National Snow and Ice Data Center World Glacier Monitoring Service

9. National Snow and Ice Data Center D.A. Robinson, D. K. Hall, and T. L. Mote, "MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25km EASE-Grid 2.0, Version 1 (2017). Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0530.001 . http://nsidc.org/cryosphere/sotc/snow_extent.html Rutgers University Global Snow Lab. Data History

10. R.S. Nerem, B.D. Beckley, J. T. Fasullo, B.D. Hamlington, D. Masters, and G.T. Mitchum, "Climate-change–driven accelerated sea-level rise detected in the altimeter era." PNAS 15, no. 9 (12 Feb. 2018): 2022-2025. https://doi.org/10.1073/pnas.1717312115.

11. https://nsidc.org/cryosphere/sotc/sea_ice.html Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) http://psc.apl.washington.edu/research/projects/arctic-sea-ice-volume-anomaly/ http://psc.apl.uw.edu/research/projects/projections-of-an-ice-diminished-arctic-ocean/

12. USGCRP, 2017: Climate Science Special Report: Fourth National Climate Assessment, Volume I [Wuebbles, D.J., D.W. Fahey, K.A. Hibbard, D.J. Dokken, B.C. Stewart, and T.K. Maycock (eds.)]. U.S. Global Change Research Program, Washington, DC, USA, 470 pp, https://doi.org/10.7930/j0j964j6 .

13. http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F

14. http://www.pmel.noaa.gov/co2/story/Ocean+Acidification

15. C.L. Sabine, et al., “The Oceanic Sink for Anthropogenic CO2.” Science 305 (16 July 2004): 367-371. https://doi.org/10.1126/science.1097403.

16. Special Report on the Ocean and Cryosphere in a Changing Climate , Technical Summary, Chapter TS.5, Changing Ocean, Marine Ecosystems, and Dependent Communities, Section 5.2.2.3. https://www.ipcc.ch/srocc/chapter/technical-summary/

Header image shows clouds imitating mountains as the sun sets after midnight as seen from Denali's backcountry Unit 13 on June 14, 2019. Credit: NPS/Emily Mesner Image credit in list of evidence: Ashwin Kumar, Creative Commons Attribution-Share Alike 2.0 Generic.

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Computer Science > Computation and Language

Title: is modularity transferable a case study through the lens of knowledge distillation.

Abstract: The rise of Modular Deep Learning showcases its potential in various Natural Language Processing applications. Parameter-efficient fine-tuning (PEFT) modularity has been shown to work for various use cases, from domain adaptation to multilingual setups. However, all this work covers the case where the modular components are trained and deployed within one single Pre-trained Language Model (PLM). This model-specific setup is a substantial limitation on the very modularity that modular architectures are trying to achieve. We ask whether current modular approaches are transferable between models and whether we can transfer the modules from more robust and larger PLMs to smaller ones. In this work, we aim to fill this gap via a lens of Knowledge Distillation, commonly used for model compression, and present an extremely straightforward approach to transferring pre-trained, task-specific PEFT modules between same-family PLMs. Moreover, we propose a method that allows the transfer of modules between incompatible PLMs without any change in the inference complexity. The experiments on Named Entity Recognition, Natural Language Inference, and Paraphrase Identification tasks over multiple languages and PEFT methods showcase the initial potential of transferable modularity.

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Dalton Transactions

Defluorination of hfcs by a magnesium reagent.

Reaction of a series of HFCs with a main group reagent containing a Mg–Mg bond results in defluorination to form the corresponding magnesium fluoride complex. In the case of 1,1,1,2-tetrafluoroethane (HFC-134a) generation of the fluoride occurs alongside selective formation of 1,1-difluoroethene. DFT calculations have been carried out to better understand the selectivity and compare the barriers for sp3 C–F bond activation with sp3 C–H bond activation in this system.

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D. J. Sheldon, J. Parr and M. R. Crimmin, Dalton Trans. , 2024, Accepted Manuscript , DOI: 10.1039/D4DT00636D

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