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Anne Hope Jahren (born September 27, 1969) is an American
geochemist Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the ...
and geobiologist at the
University of Oslo The University of Oslo ( no, Universitetet i Oslo; la, Universitas Osloensis) is a public research university located in Oslo, Norway. It is the highest ranked and oldest university in Norway. It is consistently ranked among the top universit ...
in
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
, known for her work using
stable isotope analysis Isotope analysis is the identification of isotopic signature, abundance of certain stable isotopes of chemical elements within organic and inorganic compounds. Isotopic analysis can be used to understand the flow of energy through a food web ...
to analyze
fossil forests Petrified wood, also known as petrified tree (from Ancient Greek meaning 'rock' or 'stone'; literally 'wood turned into stone'), is the name given to a special type of ''fossilized wood'', the fossilized remains of terrestrial vegetation. ''P ...
dating to the
Eocene The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...
. She has won many prestigious awards in the field, including the
James B. Macelwane Medal The James B. Macelwane Medal is awarded annually by the American Geophysical Union to three to five early career scientists (no more than 10 years beyond having received their Ph.D.). It is named after James B. Macelwane, a Jesuit priest and one of ...
of the
American Geophysical Union The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's act ...
. Her book '' Lab Girl'' (2016) has been applauded as both "a personal memoir and a paean to the natural world", a literary fusion of memoir and science writing, and "a compellingly earthy narrative."


Early life and education

Jahren was born in
Austin, Minnesota Austin is a city in, and the county seat of, Mower County, Minnesota, United States. The population was 26,174 at the 2020 census. The town was originally settled along the Cedar River and has two artificial lakes, East Side Lake and Mill Po ...
on September 27, 1969. Her father taught science at a community college and she has three older brothers. She completed her undergraduate education in geology at the
University of Minnesota The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Tw ...
, graduating ''
cum laude Latin honors are a system of Latin phrases used in some colleges and universities to indicate the level of distinction with which an academic degree has been earned. The system is primarily used in the United States. It is also used in some Sou ...
'' in 1991.


Career and research

Jahren earned her
Ph.D A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common Academic degree, degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields ...
in 1996 at the
University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...
in the field of
soil science Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to th ...
. Her dissertation covered the formation of biominerals in plants and used novel stable isotope methods to examine the processes. From 1996 to 1999, she was an assistant professor at the
Georgia Institute of Technology The Georgia Institute of Technology, commonly referred to as Georgia Tech or, in the state of Georgia, as Tech or The Institute, is a public research university and institute of technology in Atlanta, Georgia. Established in 1885, it is part of ...
, then moved to
Johns Hopkins University Johns Hopkins University (Johns Hopkins, Hopkins, or JHU) is a private university, private research university in Baltimore, Maryland. Founded in 1876, Johns Hopkins is the oldest research university in the United States and in the western hem ...
, where she stayed until 2008. At Georgia Tech, she conducted pioneering research on
paleoatmosphere A paleoatmosphere (or ''palaeoatmosphere'') is an atmosphere, particularly that of Earth, at some unspecified time in the geological past. The composition of Earth's paleoatmosphere can be inferred today from the study of the abundance of Proxy (c ...
s using fossilized plants, and discovered the second
methane hydrate Methane clathrate (CH4·5.75H2O) or (8CH4·46H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amo ...
release event that occurred 117 million years ago. She also spent a year on a
Fulbright Award The Fulbright Program, including the Fulbright–Hays Program, is one of several United States Cultural Exchange Programs with the goal of improving intercultural relations, cultural diplomacy, and intercultural competence between the people of ...
at the
University of Copenhagen The University of Copenhagen ( da, Københavns Universitet, KU) is a prestigious public university, public research university in Copenhagen, Copenhagen, Denmark. Founded in 1479, the University of Copenhagen is the second-oldest university in ...
, learning DNA analysis techniques. While at Johns Hopkins, Jahren received media attention for her work with the fossil forests of
Axel Heiberg Island Axel Heiberg Island ( iu, ᐅᒥᖕᒪᑦ ᓄᓈᑦ, ) is an uninhabited island in the Qikiqtaaluk Region, Nunavut, Canada. Located in the Arctic Ocean, it is the 32nd largest island in the world and Canada's seventh largest island. According ...
. Her studies of the trees allowed her to estimate the environmental conditions on the island 45 million years ago. She and her collaborators analyzed depletion of oxygen isotopes to determine the weather patterns there that allowed large ''
Metasequoia ''Metasequoia'', or dawn redwoods, is a genus of fast-growing deciduous trees, one of three species of pinophyta, conifers known as redwoods. The living species ''Metasequoia glyptostroboides'' is native to Lichuan, Hubei, Lichuan county in Hube ...
'' forests to flourish during the Eocene. Her research at Johns Hopkins also included the first extraction and analysis of DNA found in
paleosol In the geosciences, paleosol (''palaeosol'' in Great Britain and Australia) is an ancient soil that formed in the past. The precise definition of the term in geology and paleontology is slightly different from its use in soil science. In geolo ...
and the first discovery of stable isotopes existing in a multicellular organism's DNA. Jahren left Johns Hopkins for a full professorship at the
University of Hawaii A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...
. Her research there focused on using stable isotope analysis to determine characteristics of the environment on different timescales. On September 1, 2016, Jahren became the J. Tuzo Wilson Professor at the
University of Oslo The University of Oslo ( no, Universitetet i Oslo; la, Universitas Osloensis) is a public research university located in Oslo, Norway. It is the highest ranked and oldest university in Norway. It is consistently ranked among the top universit ...
's Centre for Earth Evolution and Dynamics, where she studies how living and fossil organisms are chemically linked to the environment.


Honors and awards

Jahren has received three
Fulbright Award The Fulbright Program, including the Fulbright–Hays Program, is one of several United States Cultural Exchange Programs with the goal of improving intercultural relations, cultural diplomacy, and intercultural competence between the people of ...
s: in 1992 for geology work conducted in
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
, in 2003 for environmental science work conducted in
Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark ...
, and in 2010 for arctic science work conducted in Norway. In 2001, Jahren won the Donath Medal, awarded by the
Geological Society of America The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences. History The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchco ...
. In 2005, she was awarded the Macelwane Medal, becoming the first woman and fourth scientist overall to win both the Macelwane Medal and the Donath Medal. Jahren was profiled by
Popular Science ''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, incl ...
magazine in 2006 as one of its "Brilliant 10" scientists. She was a 2013 Leopold Fellow at
Stanford University Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...
's Stanford Woods Institute for the Environment. In 2016, Time Magazine named her one of the world's "100 Most Influential People." Jahren was awarde
Australian Society for Medical Research
Medal for 2018. She was also elected to the
Norwegian Academy of Science and Letters The Norwegian Academy of Science and Letters ( no, Det Norske Videnskaps-Akademi, DNVA) is a learned society based in Oslo, Norway. Its purpose is to support the advancement of science and scholarship in Norway. History The Royal Frederick Univer ...
in 2018.


Support for science awareness

Jahren is an advocate for raising public awareness of science and has been working to lift the stereotype surrounding women and girls in science. One such example included the repurposing of the Twitter
hashtag A hashtag is a metadata tag that is prefaced by the hash (also known as pound or octothorpe) sign, ''#''. On social media, hashtags are used on microblogging and photo-sharing services such as Twitter or Instagram as a form of user-generated ...
#ManicureMondays. ''Seventeen'' magazine originally came up with the hashtag, but focused mainly on manicured and painted fingernails. Subsequently, Jahren encouraged fellow scientists, specifically girls, to tweet pictures of their hands conducting scientific experiments. The idea behind this was to raise awareness of scientific research and to increase the profile of women working in science. Jahren has also written compellingly about the
sexual harassment Sexual harassment is a type of harassment involving the use of explicit or implicit sexual overtones, including the unwelcome and inappropriate promises of rewards in exchange for sexual favors. Sexual harassment includes a range of actions fro ...
of women in science. She recommends that people draw strong
professional boundaries Professional boundaries are an important consideration in the relationship between any professional and their client. Nurse-client boundaries Boundaries are an integral part of the nurse-client relationship. They represent invisible structures i ...
, and that they carefully document what occurs, beginning with the first occasion of harassment.


References


External links

* (Jahren lab website)
University of Oslo faculty website

Cogito interview with Jahren
{{DEFAULTSORT:Jahren, Hope 21st-century American biologists American geochemists 1969 births Living people American women geologists American women biologists American women chemists University of Hawaiʻi faculty People from Austin, Minnesota 20th-century American biologists 21st-century American chemists 20th-century American geologists 21st-century American geologists 20th-century American chemists 20th-century American women scientists 21st-century American women scientists UC Berkeley College of Natural Resources alumni Members of the Norwegian Academy of Science and Letters American women academics Fulbright alumni