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Cryosphere | The cryosphere ( from the Greek κρύος kryos , `` cold '' , `` frost '' or `` ice '' and σφαῖρα sphaira , `` globe , ball '' ) is those portions of Earth 's surface where water is in solid form , including sea ice , lake ice , river ice , snow cover , glaciers , ice caps , ice sheets , and frozen ground ( which includes... | |
Cordillera | A cordillera is an extensive chain of mountains or mountain ranges . The term is a borrowing from Spanish , in which it has the same meaning . The Spanish word originates from cordilla , a diminutive of `` cuerda '' , or `` rope '' . It is most commonly used in the field of physical geography . The term is particular... | |
Coverage_(telecommunication) | In telecommunications , the coverage of a radio station is the geographic area where the station can communicate . Broadcasters and telecommunications companies frequently produce coverage maps to indicate to users the station 's intended service area . Coverage depends on several factors , such as orography ( i.e. mo... | |
Cumulative_effects_(environment) | Cumulative environmental effects can be defined as effects on the environment which are caused by the combined results of past , current and future activities . Over time , direct and indirect human activities combine to collectively impact the environment . These effects may differ from the original , individual activ... | |
Correlation_coefficient | A correlation coefficient is a number that quantifies a type of correlation and dependence , meaning statistical relationships between two or more values in fundamental statistics . Types of correlation coefficients include : Pearson product-moment correlation coefficient , also known as r , R , or Pearson 's r , a ... | |
Cost_contingency | When estimating the cost for a project , product or other item or investment , there is always uncertainty as to the precise content of all items in the estimate , how work will be performed , what work conditions will be like when the project is executed and so on . These uncertainties are risks to the project . Some ... | |
Cooperation_Sea | Cooperation Sea , also called Commonwealth Sea ( erratum ) or Sodruzhestvo Sea , is a proposed sea name for part of the Southern Ocean , between Enderby Land ( the eastern limit of which is 59 ° 34 ` E ) and West Ice Shelf ( 85 ° E ) , off the coast of MacRobertson Land and Princess Elizabeth Land . It would stretch ov... | |
Daily_Mail | The Daily Mail is a British daily middle-market tabloid newspaper owned by the Daily Mail and General Trust and published in London . First published in 1896 by Alfred Harmsworth , 1st Viscount Northcliffe , and his brother Harold Harmsworth , 1st Viscount Rothermere , it is the United Kingdom 's second biggest-selling... | |
Corylus_cornuta | Corylus cornuta ( Beaked Hazel ) is a deciduous shrubby hazel found in most of North America , from southern Canada south to Georgia and California . It grows in dry woodlands and forest edges and can reach 4 - tall with stems 10 - thick with smooth gray bark . The leaves are rounded oval , coarsely double-toothed , 5 ... | |
Criticism_of_the_IPCC_Fourth_Assessment_Report | The IPCC Fourth Assessment Report ( AR4 ) is a report on climate change created with the help of a large number of contributors , both scientists and governmental representatives . There has been considerable political controversy over a small number of errors found in the report , and there have been calls for review ... | |
Cyclone | In meteorology , a cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure . Cyclones are characterized by inward spiraling winds that rotate about a zone of low pressure . The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale ( the... | |
Cycadales | Cycadales is an order of seed plants that includes all the extant cycads . These plants typically have a stout and woody ( ligneous ) trunk with a crown of large , hard and stiff , evergreen leaves . They usually have pinnate leaves . The individual plants are either all male or all female ( dioecious ) . Cycads vary i... | |
D-value_(microbiology) | In microbiology , D-value refers to decimal reduction time ( or decimal reduction dose ) and is the time ( or dose ) required at a given condition ( e.g. temperature ) , or set of conditions , to kill 90 % ( or 1 log ) of the exposed microorganisms . The term originated from assessing microbial thermal resistance and t... | |
Crisis | A crisis ( from the Greek κρίσις - krisis ; plural : `` crises '' ; adjectival form : `` critical '' ) is any event that is going ( or is expected ) to lead to an unstable and dangerous situation affecting an individual , group , community , or whole society . Crises are deemed to be negative changes in the security , ... | |
Copula_(linguistics) | In linguistics , a copula ( plural : copulas or copulae ; abbreviated ) is a word used to link the subject of a sentence with a predicate ( a subject complement ) , such as the word is in the sentence `` The sky is blue . '' The word copula derives from the Latin noun for a `` link '' or `` tie '' that connects two dif... | |
Danish_Committees_on_Scientific_Dishonesty | The Danish Committees on Scientific Dishonesty ( Udvalgene vedrørende Videnskabelig Uredelighed , or UVVU ) are a set of three committees under the Danish Ministry of Research and Information Technology : a committee for natural science , agricultural and veterinary science and technical science ; a committee for healt... | |
Coral_reef | Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals . Coral reefs are built by colonies of tiny animals found in marine waters that contain few nutrients . Most coral reefs are built from stony corals , which in turn consist of polyps that cluster in groups . T... | |
Culling | In biology , culling is the process of segregating organisms from a group according to desired or undesired characteristics . In animal breeding , culling is the process of removing or segregating animals from a breeding stock based on specific trait . This is done to exaggerate desirable characteristics , or to remove... | |
Copernicus_Programme | Copernicus is the world 's largest single earth observation programme and is directed by the European Commission in partnership with the European Space Agency ( ESA ) . It aims at achieving a global , continuous , autonomous , high quality , wide range Earth observation capacity . Providing accurate , timely and easily... | |
Cyclic_salt | Cyclic salt is salt that is carried by the wind when it comes in contact with breaking waves . It is estimated that more than 300 million tons of cyclic salt is deposited on the Earth 's surface each year , and it is considered to be a significant factor in the chlorine content of the Earth 's river water . In general ... | |
Cooling_tower | A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature . Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or , in the case of closed cir... | |
Country_risk | Country risk refers to the risk of investing or lending in a country , arising from possible changes in the business environment that may adversely affect operating profits or the value of assets in the country . For example , financial factors such as currency controls , devaluation or regulatory changes , or stabilit... | |
Cretaceous | The Cretaceous ( -LSB- pronkrᵻˈteɪʃəs -RSB- , ) is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago ( Mya ) to the beginning of the Paleogene Period Mya . It is the last period of the Mesozoic Era . The Cretaceous Period is usually abbreviated K , for its Ge... | |
Covariate | In statistics , a covariate is a variable that is possibly predictive of the outcome under study . A covariate may be of direct interest or it may be a confounding or interacting variable . The alternative terms explanatory variable , independent variable , or predictor , are used in a regression analysis . In econom... | |
Diphtheria | Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae . Signs and symptoms may vary from mild to severe . They usually start two to five days after exposure . Symptoms often come on fairly gradually , beginning with a sore throat and fever . In severe cases , a grey or white patch develops in t... | |
Diablo_wind | Diablo wind is a name that has been occasionally used for the hot , dry offshore wind from the northeast that typically occurs in the San Francisco Bay Area of Northern California , during the spring and fall . The same wind pattern also affects other parts of California 's coastal ranges . The term was first used by l... | |
Deforestation_and_climate_change | Deforestation is one of the main contributors to climate change . It is the second largest anthropogenic source of carbon dioxide to the atmosphere , after fossil fuel combustion . Deforestation and forest degradation contribute to atmospheric greenhouse gas emissions through combustion of forest biomass and decomposit... | |
Deep-sea_exploration | Deep-sea exploration is the investigation of physical , chemical , and biological conditions on the sea bed , for scientific or commercial purposes . Deep-sea exploration is considered as a relatively recent human activity compared to the other areas of geophysical research , as the depths of the sea have been investig... | |
Debunker | A debunker is a person or organization who attempts to expose or discredit claims believed to be false , exaggerated , or pretentious . The term is often associated with skeptical investigation of controversial topics such as UFOs , claimed paranormal phenomena , cryptids , conspiracy theories , alternative medicine , ... | |
Description_of_the_Medieval_Warm_Period_and_Little_Ice_Age_in_IPCC_reports | The description of the Medieval Warm Period and Little Ice Age in IPCC reports has changed since the first report in 1990 as scientific understanding of the temperature record of the past 1000 years has improved . The Medieval Warm Period ( MWP ) and Little Ice Age ( LIA ) are the best-known temperature fluctuations in... | |
Diesel_fuel | Diesel fuel -LSB- ˈdiːzəl -RSB- in general is any liquid fuel used in diesel engines , whose fuel ignition takes place , without any spark , as a result of compression of the inlet air mixture and then injection of fuel . ( Glow plugs , grid heaters and heater blocks help achieve high temperatures for combustion during... | |
David_Icke | David Vaughan Icke ( -LSB- aɪk -RSB- born 29 April 1952 ) is an English writer and public speaker . A former footballer and sports broadcaster , Icke has made his name since the 1990s as a professional conspiracy theorist , calling himself a `` full time investigator into who and what is really controlling the world ... | |
Detroit_River | The Detroit River flows for 24 nmi from Lake St. Clair to Lake Erie as a strait in the Great Lakes system and forms part of the border between Canada and the United States . The river divides the metropolitan areas of Detroit , Michigan and Windsor , Ontario - an area referred to as Detroit -- Windsor . The two cities ... | |
Desert | A desert is a barren area of land where little precipitation occurs and consequently living conditions are hostile for plant and animal life . The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation . About one third of the land surface of the world is arid or semi-arid . Thi... | |
Desalination | Desalination is a process that extracts minerals from saline water . More generally , desalination refers to the removal of salts and minerals from a target substance , as in soil desalination , which is an issue for agriculture . Saltwater is desalinated to produce water suitable for human consumption or irrigation ... | |
Dematerialization_(economics) | In economics , dematerialization refers to the absolute or relative reduction in the quantity of materials required to serve economic functions in society . In common terms , dematerialization means doing more with less . This concept is similar to ephemeralization as proposed by Buckminster Fuller . In 1972 , the Cl... | |
Dark_Ages_(historiography) | The `` Dark Ages '' is a historical periodization traditionally referring to the Middle Ages . It emphasizes the demographic , cultural and economic deterioration that supposedly occurred in Western Europe following the decline of the Roman Empire , and the relative scarcity of written records from the period . The t... | |
Deregulation | Deregulation is the process of removing or reducing state regulations , typically in the economic sphere . It is the undoing or repeal of governmental regulation of the economy . It became common in advanced industrial economies in the 1970s and 1980s , as a result of new trends in economic thinking about the inefficie... | |
Diminishing_returns | In economics , diminishing returns is the decrease in the marginal ( incremental ) output of a production process as the amount of a single factor of production is incrementally increased , while the amounts of all other factors of production stay constant . The law of diminishing returns states that in all productiv... | |
Desertification | Desertification is a type of land degradation in which relatively dry area of land becomes increasingly arid , typically losing its bodies of water as well as vegetation and wildlife . It is caused by a variety of factors , such as through climate change and through the overexploitation of soil through human activity .... | |
Denialism | In the psychology of human behavior , denialism is a person 's choice to deny reality , as a way to avoid a psychologically uncomfortable truth . Denialism is an essentially irrational action that withholds the validation of a historical experience or event , by the person refusing to accept an empirically verifiable r... | |
Dinosaur | Dinosaurs are a diverse group of reptiles of the clade Dinosauria that first appeared during the Triassic period . Although the exact origin and timing of the evolution of dinosaurs is the subject of active research , the current scientific consensus places their origin between 231 and 243 million years ago . They beca... | |
Demand_destruction | Demand destruction is a permanent downward shift on the demand curve in the direction of lower demand of a commodity , such as energy products , induced by a prolonged period of high prices or constrained supply . In the context of the oil industry , `` demand '' generally refers to the quantity consumed ( see for exam... | |
Developed_country | A developed country , industrialized country , more developed country , or `` more economically developed country '' ( MEDC ) , is a sovereign state that has a highly developed economy and advanced technological infrastructure relative to other less industrialized nations . Most commonly , the criteria for evaluating t... | |
Deep_ecology | Deep ecology is an ecological and environmental philosophy promoting the inherent worth of living beings regardless of their instrumental utility to human needs , plus a radical restructuring of modern human societies in accordance with such ideas . Deep ecology argues that the natural world is a subtle balance of comp... | |
Dead_Sea | The Dead Sea ( lit . Salt Sea , البحر الميت ) , is a salt lake bordered by Jordan to the east and Israel and Palestine to the west . Its surface and shores are 430.5 m below sea level , Earth 's lowest elevation on land . The Dead Sea is 304 m deep , the deepest hypersaline lake in the world . With 34.2 % salinity ( in... | |
December_1960_nor'easter | The December 1960 nor'easter was a significant early-season winter storm that impacted the Mid-Atlantic and New England regions of the United States . Moderate to heavy snowfall fell from West Virginia to eastern Maine , amounting to 10 in ( 25 cm ) or more in parts of 13 states and peaking at 21.4 in ( 54.4 cm ) at Ne... | |
Definition_of_planet | The definition of planet , since the word was coined by the ancient Greeks , has included within its scope a wide range of celestial bodies . Greek astronomers employed the term asteres planetai , `` wandering stars '' , for star-like objects which apparently moved over the sky . Over the millennia , the term has inclu... | |
Deterrence_(psychology) | Deterrence is a theory from behavioral psychology about preventing or controlling actions or behavior through fear of punishment or retribution . This theory of criminology is shaping the criminal justice system of the United States and various other countries . Deterrence can be divided into two separate categories ... | |
Deception | Deception , beguilement , deceit , bluff , mystification , ruse , or subterfuge is the act of propagating beliefs in things that are not true , or not the whole truth ( as in half-truths or omission ) . Deception can involve dissimulation , propaganda , and sleight of hand , as well as distraction , camouflage , or con... | |
Defaunation | Defaunation is the loss of animals from ecological communities . The growth of the human population , combined with advances in harvesting technologies , has led to more intense and efficient exploitation of the environment . This has resulted in the depletion of large vertebrates from ecological communities , creating... | |
December_1945_lunar_eclipse | A total lunar eclipse took place on December 19 , 1945 . | |
Degree_day | A degree day is a measure of heating or cooling . Total degree days from an appropriate starting date are used to plan the planting of crops and management of pests and pest control timing . Weekly or monthly degree-day figures may also be used within an energy monitoring and targeting scheme to monitor the heating and... | |
Desert_climate | The Desert climate ( in the Köppen climate classification BWh and BWk , sometimes also BWn ) , also known as an arid climate , is a climate that does not meet the criteria to be classified as a polar climate , and in which precipitation is too low to sustain any vegetation at all , or at most a very scanty shrub . An... | |
Deforestation | Deforestation , clearance or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a non-forest use . Examples of deforestation include conversion of forestland to farms , ranches , or urban use . The most concentrated deforestation occurs in tropical rainforests . About 30 % o... | |
Denver | Denver ( -LSB- ˈdɛnvər -RSB- ) , officially the City and County of Denver , is the capital and most populous municipality of the U.S. state of Colorado . Denver is in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains . The Denver downtown district i... | |
Dinotoxin | Dinotoxins are a group of toxins which are produced by flagellate , aquatic , unicellular protists called dinoflagellates . Dinotoxin was coined by Hardy and Wallace in 2012 as a general term for the variety of toxins produced by dinoflagellates . Dinoflagellates are an enormous group of marine life , with much diversi... | |
Denmark_Strait | The Denmark Strait or Greenland Strait ( , the latter meaning ` Greenland Sound ' ) is an oceanic strait between Iceland ( to its southeast ) and Greenland ( to its northwest ) . The Norwegian island of Jan Mayen lies northeast of the strait . It connects the Greenland Sea , an extension of the Arctic Ocean , to the ... | |
Deschutes_National_Forest | The Deschutes National Forest is a United States National Forest located in parts of Deschutes , Klamath , Lake , and Jefferson counties in central Oregon . It comprises 1.8 e6acre along the east side of the Cascade Range . In 1908 , the Deschutes National Forest was established from parts of the Blue Mountains , Casca... | |
Deflator | In statistics , a deflator is a value that allows data to be measured over time in terms of some base period , usually through a price index , in order to distinguish between a changes in the money value of a gross national product ( GNP ) that come from a change in prices , and changes from a change in physical output... | |
Deserts_of_California | The Deserts of California have unique ecosystems and habitats , a sociocultural and historical `` Old West '' collection of legends , districts , and communities , and they also form a popular tourism region of dramatic natural features and recreational development . All of the deserts are located in eastern Southern C... | |
David_Titley | David W. Titley is a professor of meteorology at Pennsylvania State University and the founding director of their Center for Solutions to Weather and Climate Risk . He was also NOAA 's chief operating officer from 2012 -- 2013 . Before assuming these positions , he was a rear admiral in , and the chief oceanographer of... | |
Debris_flow | Debris flows are geological phenomena in which water-laden masses of soil and fragmented rock rush down mountainsides , funnel into stream channels , entrain objects in their paths , and form thick , muddy deposits on valley floors . They generally have bulk densities comparable to those of rock avalanches and other ty... | |
Dark_matter_in_fiction | Dark matter is defined as hypothetical matter that is undetectable by its emitted radiation , but whose presence can be inferred from gravitational effects on visible matter . It has been used in a variety of fictional media , including computer and video games and books . In such cases , dark matter is usually attribu... | |
Data | Data ( -LSB- ˈdeɪtə -RSB- , -LSB- ˈdætə -RSB- , or -LSB- ˈdɑːtə -RSB- ) is a set of values of qualitative or quantitative variables . An example of qualitative data would be an anthropologist 's handwritten notes about his or her interviews with people of an Indigenous tribe . Pieces of data are individual pieces of in... | |
Dehumanization | Dehumanization or an act thereof can describe a behavior or process that undermines individuality of and in others . Behaviorally , dehumanization describes a disposition towards others that debases the others ' individuality as either an `` individual '' species or an `` individual '' object , e.g. someone who acts in... | |
Dihydrogen_monoxide_hoax | The dihydrogen monoxide hoax involves calling water by the unfamiliar chemical name `` dihydrogen monoxide '' ( DHMO ) , and listing some of water 's effects in an alarming manner , such as the fact that it accelerates corrosion and can cause suffocation . The hoax often calls for dihydrogen monoxide to be regulated , ... | |
Degrowth | Degrowth is a political , economic , and social movement based on ecological economics , anti-consumerist and anti-capitalist ideas . It is also considered an essential economic strategy responding to the limits-to-growth dilemma ( see The Path to Degrowth in Overdeveloped Countries and post-growth ) . Degrowth thinker... | |
Developing_country | A developing country , also called a less developed country or an underdeveloped country , is a nation or a sovereign state with a less developed industrial base and a low Human Development Index ( HDI ) relative to other countries . There are no universally agreed-upon criteria for what makes a country developing vers... | |
Dipolog | Dipolog , officially the City of Dipolog ( Dakbayan sa Dipolog Lungsod ng Dipolog Chavacano : Ciudad de Dipolog ; Subanen : Gembagel G'benwa Dipuleg/Bagbenwa Dipuleg ) , is a third class city and the capital of the province of Zamboanga del Norte on the southern Philippine island of Mindanao . Geographically , the city... | |
Deep_ocean_water | Deep ocean water ( DOW ) is the name for cold , salty water found deep below the surface of Earth 's oceans . Ocean water differs in temperature and salinity . Warm surface water is generally saltier than the cooler deep or polar waters ; in polar regions , the upper layers of ocean water are cold and fresh . Deep ocea... | |
Deglobalization | Deglobalization or Deglobalisation is the process of diminishing interdependence and integration between certain units around the world , typically nation-states . It is widely used to describe the periods of history when economic trade and investment between countries decline . It stands in contrast to globalization ,... | |
Demimonde | Demi-monde refers to a group of people who live hedonistic lifestyles , usually in a flagrant and conspicuous manner . The term was commonly used in Europe from the late nineteenth to the early twentieth century , and contemporary use has an anachronistic character . Its connotations of pleasure-seeking often contraste... | |
Denali_National_Park_and_Preserve | Denali National Park and Preserve is a national park and preserve located in Interior Alaska , centered on Denali , the highest mountain in North America . The park and contiguous preserve encompasses more than 6 million acres ( 24,500 km2 ) . The national preserve is 1,334,200 acres ( 5,430 km2 ) . On December 2 , 198... | |
Decomposition | Decomposition is the process by which organic substances are broken down into simpler matter . The process is a part of nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere . Bodies of living organisms begin to decompose shortly after death . Animals , such as wo... | |
Deglaciation | Deglaciation describes 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 ( IPCC AR5 ) . Thus , it refers to the retreat of a glacier , an ice sheet or frozen surface layer , and the resulting e... | |
Deindustrialisation_by_country | Deindustrialisation refers to the process of social and economic change caused by the removal or reduction of industrial capacity or activity in a country or region , especially heavy industry or manufacturing industry . It is the opposite of industrialisation . Deindustrialisation has taken place in many nations over ... | |
Deforestation_by_region | Rates and causes of deforestation vary from region to region around the world . In 2009 , 2/3 of the world forests were in 10 top countries : 1 ) Russia , 2 ) Brazil , 3 ) Canada , 4 ) United States , 5 ) China , 6 ) Australia , 7 ) Congo , 8 ) Indonesia , 9 ) Peru and 10 ) India . World annual deforestation is estim... | |
Denali | Denali ( -LSB- dᵻˈnɑːli -RSB- ) ( also known as Mount McKinley , its former official name ) is the highest mountain peak in North America , with a summit elevation of 20310 ft above sea level . With a topographic prominence of 20156 ft and a topographic isolation of 4629 mi , Denali is the third most prominent and thir... | |
Demographics_of_the_world | Demographics of the world include population density , ethnicity , education level , health measures , economic status , religious affiliations and other aspects of the population . The overall total population of the world is approximately 7.45 billion , to July 2016 . Its overall population density is 50 people p... | |
Deseret_News | The Deseret News ( -LSB- dɛz.əˈrɛt . -RSB- ) is a newspaper published in Salt Lake City , Utah , United States . It is Utah 's oldest continuously published daily newspaper and has the largest Sunday circulation in the state and the second largest daily circulation behind The Salt Lake Tribune . The News is owned by De... | |
Dependencies_of_Norway | Norway has three dependent territories ( biland ) , all uninhabited and located in the Southern Hemisphere . Bouvetøya is a Subantarctic island in the South Atlantic Ocean . Queen Maud Land is a sector of Antarctica which spans between 20 ° west and 45 ° east . Peter I Island is a volcanic island located 450 km off the... | |
Day | A day is a unit of time . In common usage , it is either an interval equal to 24 hours or daytime , the consecutive period of time during which the Sun is above the horizon . The period of time during which the Earth completes one rotation with respect to the Sun is called a solar day . Several definitions of this univ... | |
Demography | Demography ( from prefix demo - from Ancient Greek δῆμος dēmos meaning `` the people '' , and - graphy from γράφω graphō , implies `` writing , description or measurement '' ) is the statistical study of populations , especially human beings . As a very general science , it can analyze any kind of dynamic living popula... | |
Deepwater_Horizon_oil_spill | The Deepwater Horizon oil spill ( also referred to as the BP oil spill , the BP oil disaster , the Gulf of Mexico oil spill , and the Macondo blowout ) began on April 20 , 2010 , in the Gulf of Mexico on the BP-operated Macondo Prospect . Killing eleven people , it is considered the largest marine oil spill in the hist... | |
Dark_energy | In physical cosmology and astronomy , dark energy is an unknown form of energy which is hypothesized to permeate all of space , tending to accelerate the expansion of the universe . Dark energy is the most accepted hypothesis to explain the observations since the 1990s indicating that the universe is expanding at an ac... | |
Dendrochronology | Dendrochronology ( or tree-ring dating ) is the scientific method of dating tree rings ( also called growth rings ) to the exact year they were formed in order to analyze atmospheric conditions during different periods in history . Dendrochronology is useful for determining the timing of events and rates of change in t... | |
Denitrification | Denitrification is a microbially facilitated process where nitrate is reduced and ultimately produces molecular nitrogen ( N2 ) through a series of intermediate gaseous nitrogen oxide products . Facultative anaerobic bacteria perform denitrification as a type of respiration that reduces oxidized forms of nitrogen in re... | |
Derecho | A derecho ( -LSB- dəˈreɪtʃoʊ -RSB- , from derecho -LSB- deˈɾetʃo -RSB- , `` straight '' ) is a widespread , long-lived , straight-line wind storm that is associated with a land-based , fast-moving group of severe thunderstorms . Derechos can cause hurricane-force winds , tornadoes , heavy rains , and flash floods . C... | |
Denial | Denial , in ordinary English usage , is asserting that a statement or allegation is not true . The same word , and also abnegation ( Verneinung ) , is used for a psychological defense mechanism postulated by psychoanalyst Sigmund Freud , in which a person is faced with a fact that is too uncomfortable to accept and rej... | |
Department_of_Energy_and_Environment | The Department of Energy and Environment ( DOEE ) - formerly the District Department of the Environment - serves as an agency within the Executive Branch of the District of Columbia ( DC ) government in the United States to consolidate the administration and oversight of environmental and energy programs , services , l... | |
Demographic_dividend | Demographic dividend occurs when the proportion of working people in the total population is high because this indicates that more people have the potential to be productive and contribute to growth of the economy . According to the United National population research , during the last four decades the countries of Asi... | |
Eddy_covariance | The eddy covariance ( also known as eddy correlation and eddy flux ) technique is a key atmospheric measurement technique to measure and calculate vertical turbulent fluxes within atmospheric boundary layers . The method analyzes high-frequency wind and scalar atmospheric data series , and yields values of fluxes of th... | |
Domestication | Domestication is a sustained multi-generational relationship in which one group of organisms assumes a significant degree of influence over the reproduction and care of another group to secure a more predictable supply of resources from that second group . Charles Darwin recognized the small number of traits that made ... | |
Early_December_2007_North_American_winter_storm | The Early December 2007 North American winter storm was a major winter storm which affected the majority of the United States and portions of southern Canada from November 29 to December 5 , hitting the Intermountain West and Midwestern United States , the Great Lakes region and the Northeast . The storm brought signif... | |
Disinformation_(TV_series) | Disinformation , also known as Disinfo Nation , was a television show hosted by Richard Metzger . It was aired for two seasons on Channel 4 in the UK as part of their late night `` 4Later '' programming block . Called a `` punk rock 60 Minutes '' and `` wilder than Jackass '' by the Los Angeles Times and Wired magazine... | |
Earth_radius | Earth radius is the distance from the Earth 's center to its surface , about 6,371 km . This length is also used as a unit of distance , especially in astronomy and geology , where it is usually denoted by . This article deals primarily with spherical and ellipsoidal models of the Earth . See Figure of the Earth for ... | |
East_Greenland_Orogen | The East Greenland orogen , also known as East Greenland mountain range , is the linear mountain range along the eastern Greenland coast , from 70 to 82 degrees north latitude . Geologically , the mountain chain consists of late Cryogenian to late Devonian ( 650 to 350 millions years ago ) fold and thrust belts . Lit... | |
Eco-economic_decoupling | In economic and environmental fields , decoupling is becoming increasingly used in the context of economic production and environmental quality . When used in this way , it refers to the ability of an economy to grow without corresponding increases in environmental pressure . In many economies , increasing production (... | |
Druid | A druid ( derwydd druí ) was a member of the high-ranking professional class in ancient Celtic cultures . While perhaps best remembered as religious leaders , they were also legal authorities , adjudicators , lorekeepers , medical professionals and political advisors . While the druids are reported to have been literat... |
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