Joellen Louise Russell (born 1970) is an American oceanographer and climate scientist. [1]
Russell is a professor in the Department of Geosciences at the University of Arizona. [2] In Tucson, AZ, with joint appointments in the Departments of Lunar and Planetary Sciences, Hydrology and Atmospheric Sciences, and in the Mathematics Department’s Program in Applied Mathematics. She was named as the Thomas R. Brown Distinguished Chair of Integrative Science [3] in 2017. She was named as University Distinguish Professor in 2021.
Russell was born in Seattle, WA in 1970, and grew up in Kotzebue, Alaska, a fishing village 30 miles north of the Arctic Circle, where her father worked for the Indian Health Service. At age 12, she knew she wanted to be an oceanographer. Russell attended St. Paul’s School in Concord, NH, received a School Year Abroad in Rennes, France, was a Radcliffe National Scholar at Harvard University where she earned an A.B. in Environmental Geoscience. She had her first research cruise to the Southern Ocean in 1994 and spent nearly a year of her graduate career at sea there before completing her PhD in Oceanography in 1999 from the Scripps Institution of Oceanography, University of California, San Diego. She earned a JISAO Postdoctoral Fellowship at the University of Washington and then spent several years as a research scientist at Princeton University and the NOAA Geophysical Fluid Dynamics Laboratory in Princeton, NJ during the preparation for the 4th Assessment by the Intergovernmental Panel on Climate Change (IPCC-AR4). Russell became a member of the faculty of the Department of Geosciences at the University of Arizona in 2006, and became a full professor in 2019.
Russell’s research [4] explores the role of the ocean in the global climate, [5] focusing on the Southern Ocean [6] and the Southern Hemisphere westerly winds. She uses global climate and earth system models [7] to simulate the climate and carbon cycle of the past, the present and the future, and develops observationally-based metrics to evaluate these simulations. [8] Russell's work on the westerly winds led to her greatest research accomplishment so far: the creation of a new paradigm in climate science, namely that warmer climates produce stronger westerly winds. [9] This insight solved one of the long-standing climate paradoxes, the mechanism responsible for transferring one-third of the carbon dioxide in the atmosphere into the ocean and then back out again during our repeated glacial-interglacial cycles. [10]
Russell is the lead for the modeling theme of the Southern Ocean Carbon and Climate Observations and Modeling project (SOCCOM) [11] including its Southern Ocean Model Intercomparison Project (SOMIP) [12]
She currently serves as the Chair of the NOAA Science Advisory Board’s Climate Working Group, [13] as an Objective Leader [14] for the Scientific Committee on Antarctic Research’s AntarcticClimate21, [15] and on the National Center for Atmospheric Research (NCAR) Community Earth System Model (CESM) advisory board. [16]
Russell is one of founding members of Science Moms, [17] a nonpartisan group of climate scientists, who are also mothers, working to demystify climate change.
Russell is one of the 14 climate scientists behind an amicus curiae brief supporting the plaintiff in the historic 2007 U.S. Supreme Court decision on carbon dioxide emissions and climate change, Commonwealth of Massachusetts, et al. v. U.S. Environmental Protection Agency. This amicus brief [18] was the only one cited in this landmark decision that established that carbon dioxide is an atmospheric pollutant and that the EPA must regulate it.
This is a list of the most influential long-lived, well-mixed greenhouse gases, along with their tropospheric concentrations and direct radiative forcings, as identified by the Intergovernmental Panel on Climate Change (IPCC). Abundances of these trace gases are regularly measured by atmospheric scientists from samples collected throughout the world. Since the 1980s, their forcing contributions are also estimated with high accuracy using IPCC-recommended expressions derived from radiative transfer models.
Land use, land-use change, and forestry (LULUCF), also referred to as Forestry and other land use (FOLU) or Agriculture, Forestry and Other Land Use (AFOLU), is defined as a "greenhouse gas inventory sector that covers emissions and removals of greenhouse gases resulting from direct human-induced land use such as settlements and commercial uses, land-use change, and forestry activities."
Climate Change 2007, the Fourth Assessment Report (AR4) of the United Nations Intergovernmental Panel on Climate Change (IPCC), was published in 2007 and is the fourth in a series of reports intended to assess scientific, technical and socio-economic information concerning climate change, its potential effects, and options for adaptation and mitigation. The report is the largest and most detailed summary of the climate change situation ever undertaken, produced by thousands of authors, editors, and reviewers from dozens of countries, citing over 6,000 peer-reviewed scientific studies. People from over 130 countries contributed to the IPCC Fourth Assessment Report, which took six years to produce. Contributors to AR4 included more than 2,500 scientific expert reviewers, more than 800 contributing authors, and more than 450 lead authors.
This is a list of climate change topics.
Kenneth Caldeira is an American atmospheric scientist. His areas of research include ocean acidification, climate effects of trees, intentional climate modification, interactions in the global carbon cycle/climate system, and sustainable energy.
The Fifth Assessment Report (AR5) of the United Nations Intergovernmental Panel on Climate Change (IPCC) is the fifth in a series of such reports and was completed in 2014. As had been the case in the past, the outline of the AR5 was developed through a scoping process which involved climate change experts from all relevant disciplines and users of IPCC reports, in particular representatives from governments. Governments and organizations involved in the Fourth Report were asked to submit comments and observations in writing with the submissions analysed by the panel. Projections in AR5 are based on "Representative Concentration Pathways" (RCPs). The RCPs are consistent with a wide range of possible changes in future anthropogenic greenhouse gas emissions. Projected changes in global mean surface temperature and sea level are given in the main RCP article.
Greenhouse gases are the gases in the atmosphere that raise the surface temperature of planets such as the Earth. What distinguishes them from other gases is that they absorb the wavelengths of radiation that a planet emits, resulting in the greenhouse effect. The Earth is warmed by sunlight, causing its surface to radiate heat, which is then mostly absorbed by water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3). Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F), rather than the present average of 15 °C (59 °F).
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.
Joanna Dorothy Haigh is a British physicist and academic. Before her retirement in 2019 she was Professor of Atmospheric Physics at Imperial College London, and co-director of the Grantham Institute – Climate Change and Environment. She served as head of the department of physics at Imperial College London. She is a Fellow of the Royal Society (FRS), and a served as president of the Royal Meteorological Society.
Deglaciation is the transition from full glacial conditions during ice ages, to warm interglacials, characterized by global warming and sea level rise due to change in continental ice volume. Thus, it refers to the retreat of a glacier, an ice sheet or frozen surface layer, and the resulting exposure of the Earth's surface. The decline of the cryosphere due to ablation can occur on any scale from global to localized to a particular glacier. After the Last Glacial Maximum, the last deglaciation begun, which lasted until the early Holocene. Around much of Earth, deglaciation during the last 100 years has been accelerating as a result of climate change, partly brought on by anthropogenic changes to greenhouse gases.
Diana Liverman is a retired Regents Professor of Geography and Development and past Director of the University of Arizona School of Geography, Development and Environment in the College of Social and Behavioral Sciences in Tucson, Arizona.
In earth science, global surface temperature is calculated by averaging the temperatures over sea and land.
Julie Michelle Arblaster is an Australian scientist. She is a Professor in the School of Earth, Atmosphere and Environment at Monash University. She was a contributing author on reports for which the Intergovernmental Panel on Climate Change (IPCC) was a co-recipient of the 2007 Nobel Peace Prize. Arblaster was a lead author on Chapter 12 of the IPCC Working Group I contribution to the IPCC Fifth Assessment Report in 2013. She has received the 2014 Anton Hales Medal for research in earth sciences from the Australian Academy of Science, and the 2017 Priestley Medal from the Australian Meteorological and Oceanographic Society. She has been ranked as one of the Top Influential Earth Scientists of 2010-2020, based on citations and discussion of her work.
Valerie Masson-Delmotte is a French climate scientist and Research Director at the French Alternative Energies and Atomic Energy Commission, where she works in the Climate and Environment Sciences Laboratory (LSCE). She uses data from past climates to test models of climate change, and has contributed to several IPCC reports.
Lai-yung Ruby Leung is an atmospheric scientist internationally recognized in the field of Earth Systems modeling and hydrologic processes. She is known for her contributions to the development of local climate models, and for her understanding of the consequences of climate change. Her interests are diverse across mountain hydrometeorology, aerosol-cloud interactions, orographic precipitation and climate extremes.
David Charles Lowe (born 1946) is a New Zealand atmospheric scientist who was instrumental in setting up the Baring Head atmospheric CO2 programme in 1972. A researcher and educator, Lowe was one of the lead authors of a 2007 Intergovernmental Panel on Climate Change (IPCC) report which was recognised with a Nobel Peace Prize.
The Sixth Assessment Report (AR6) of the United Nations (UN) Intergovernmental Panel on Climate Change (IPCC) is the sixth in a series of reports which assess scientific, technical, and socio-economic information concerning climate change. Three Working Groups covered the following topics: The Physical Science Basis (WGI); Impacts, Adaptation and Vulnerability (WGII); Mitigation of Climate Change (WGIII). Of these, the first study was published in 2021, the second report February 2022, and the third in April 2022. The final synthesis report was finished in March 2023.
Marika Holland is a scientist at the National Center for Atmospheric Research known for her work on modeling sea ice and its role in the global climate.
Ronald J. Stouffer is a meteorologist and adjunct professor at the University of Arizona, formerly Senior Research Climatologist and head of the Climate and Ecosystems Group at the Geophysical Fluid Dynamics Laboratory (GFDL), part of NOAA. He has also served on the faculty of Princeton University.
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