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Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, including the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere and the interactions between them. The climate of a location is affected by its latitude, longitude, terrain, altitude, land use and nearby water bodies and their currents.
Physical geography is one of the three main branches of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere, hydrosphere, biosphere, and geosphere. This focus is in contrast with the branch of human geography, which focuses on the built environment, and technical geography, which focuses on using, studying, and creating tools to obtain, analyze, interpret, and understand spatial information. The three branches have significant overlap, however.
The Little Ice Age (LIA) was a period of regional cooling, particularly pronounced in the North Atlantic region. It was not a true ice age of global extent. The term was introduced into scientific literature by François E. Matthes in 1939. The period has been conventionally defined as extending from the 16th to the 19th centuries, but some experts prefer an alternative time-span from about 1300 to about 1850.
Climate variability includes all the variations in the climate that last longer than individual weather events, whereas the term climate change only refers to those variations that persist for a longer period of time, typically decades or more. Climate change may refer to any time in Earth's history, but the term is now commonly used to describe contemporary climate change, often popularly referred to as global warming. Since the Industrial Revolution, the climate has increasingly been affected by human activities.
Climatology or climate science is the scientific study of Earth's climate, typically defined as weather conditions averaged over a period of at least 30 years. Climate concerns the atmospheric condition during an extended to indefinite period of time; weather is the condition of the atmosphere during a relative brief period of time. The main topics of research are the study of climate variability, mechanisms of climate changes and modern climate change. This topic of study is regarded as part of the atmospheric sciences and a subdivision of physical geography, which is one of the Earth sciences. Climatology includes some aspects of oceanography and biogeochemistry.
Global cooling was a conjecture, especially during the 1970s, of imminent cooling of the Earth culminating in a period of extensive glaciation, due to the cooling effects of aerosols or orbital forcing. Some press reports in the 1970s speculated about continued cooling; these did not accurately reflect the scientific literature of the time, which was generally more concerned with warming from an enhanced greenhouse effect.
Hubert Horace Lamb was an English climatologist who founded the Climatic Research Unit in 1972 in the School of Environmental Sciences at the University of East Anglia.
The Climatic Research Unit (CRU) is a component of the University of East Anglia and is one of the leading institutions concerned with the study of natural and anthropogenic climate change.
Historical climatology is the study of historical changes in climate and their effect on civilization from the emergence of homininis to the present day. This differs from paleoclimatology which encompasses climate change over the entire history of Earth. These historical impacts of climate change can improve human life and cause societies to flourish, or can be instrumental in civilization's societal collapse. The study seeks to define periods in human history where temperature or precipitation varied from what is observed in the present day.
R. Timothy Patterson is a Canadian professor of geology, Chairman of the Department of Earth Sciences at Carleton University, Ottawa, Ontario, Canada, and a researcher with specialization in paleolimnology, paleoceanography, and paleoclimatology. He founded and is co-Director of the Carleton Climate and Environmental Research Group (CCERG) He has previously served as Director of the Ottawa-Carleton Geoscience Centre and as senior visiting fellow in the School of Geography, Queen's University of Belfast, Northern Ireland.
Reid Bryson was an American atmospheric scientist, geologist and meteorologist. He was a professor emeritus of the University of Wisconsin–Madison. He completed a B.A. in geology at Denison University in 1941 and a Ph.D. in meteorology from the University of Chicago in 1948. In 1946 he joined the faculty of the University of Wisconsin–Madison, and in 1948 he became the founder and first chairman of the University of Wisconsin-Madison's Department of Meteorology and Center for Climatic Research. He was the first director of the Institute for Environmental Studies in 1970.
The General Crisis is a term used by some historians to describe an alleged period of widespread regional conflict and instability that occurred from the early 17th century to the early 18th century in Europe, and in more recent historiography in the world at large.
Jean-Pascal van Ypersele de Strihou is a Belgian academic climatologist. He is a professor of Environmental Sciences at the UCLouvain (Belgium). As a previous vice-chair of the IPCC, Van Yp is one of the forerunners of climate change mitigation through strong decrease of fossil fuel consumption.
This is a list of climate change topics.
Ellen Mosley-Thompson is a glaciologist and climatologist. She is a Distinguished University Professor at Ohio State University and director of their Byrd Polar and Climate Research Center. She is known as a pioneer in the use of ice cores from the Polar Regions for paleoclimatic research and is an influential figure in climate science. She is an elected fellow of the American Association for the Advancement of Science, the American Geophysical Union and an elected member of the National Academy of Sciences.
Timothy Francis Ball was a British-born Canadian public speaker and writer who was a professor in the Department of Geography at the University of Winnipeg from 1971 until his retirement in 1996. Subsequently Ball became active in promoting rejection of the scientific consensus on global warming, giving public talks and writing opinion pieces and letters to the editor for Canadian newspapers.
Ecological grief, or in particular climate grief, refers to the sense of loss that arises from experiencing or learning about environmental destruction or climate change. For example, scientists witnessing the decline of Australia's Great Barrier Reef report experiences of anxiety, hopelessness, and despair. Groups impacted heavily also include young people feeling betrayal from lack of environmental action by governments and indigenous communities losing their livelihoods.
A Temperate Empire: Making Climate Change in Early America is a 2016 book by historian Anya Zilberstein.
The Grindelwald Fluctuation is a period when glaciers in Grindelwald, Switzerland, expanded significantly. Temperatures were 1-2 degrees Celsius lower than twentieth-century averages during this period, which is thought to have lasted from the 1560s to the 1630s.
References
- 1 2 "DagomarDegroot.com". DagomarDegroot.com. Weebly. Retrieved 10 July 2019.
- ↑ Barber, Tony (23 November 2018). "Best Books of 2018: History". Financial Times. Financial Times. Retrieved 10 July 2019.
- ↑ "GU Faculty 360". Georgetown University Faculty. Georgetown University. Retrieved 10 July 2019.
- ↑ "When the World Was Cold: Five Questions for Dagomar Degroot". Undark Magazine. Linchpin Creative Agency. 24 August 2018. Retrieved 10 July 2019.
- ↑ "Some societies flourished in the Little Ice Age. There are lessons for us now". Washington Post. Retrieved 10 July 2019.
