Environment, ENV-HOW
Biological diversity is key to a healthy ecosystem, whether it’s a small biological community or the global biosphere. Ecology, which studies the relationships between organisms and their environment, is an invaluable science that helps us understand what allows an ecological community to thrive.
Environment Encyclopedia Articles By Title
environmental toxicology, field of study in the environmental sciences that is concerned with the assessment of......
environmentalism, political and ethical movement that seeks to improve and protect the quality of the natural environment......
epidemiologic transition, the process by which the pattern of mortality and disease in a population is transformed......
Ethiopian region, one of the major land areas of the world defined on the basis of its characteristic animal life.......
eutrophication, the gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in......
evapotranspiration, Loss of water from the soil both by evaporation from the soil surface and by transpiration......
Extinction signifies the permanent loss of an organism from the planet. A "functionally extinct" organism is one......
extinction, in biology, the dying out or extermination of a species. Extinction occurs when species are diminished......
extremophile, an organism that is tolerant to environmental extremes and that has evolved to grow optimally under......
fairy ring, a naturally occurring circular ring of mushrooms on a lawn or other location. A fairy ring starts when......
faunal region, any of six or seven areas of the world defined by animal geographers on the basis of their distinctive......
fertility, ability of an individual or couple to reproduce through normal sexual activity. About 90 percent of......
fertility rate, average number of children born to women during their reproductive years. For the population in......
fire storm, violent convection caused by a continuous area of intense fire and characterized by destructively violent......
Denizens of the Northern Hemisphere, brace yourselves. The autumnal equinox, usually occurring on September 22......
Tim Flannery is an Australian zoologist and outspoken environmentalist who was named Australian of the Year in......
Flint water crisis, human-made public health crisis (April 2014–June 2016) involving the municipal water supply......
floristic region, any of six areas of the world recognized by plant geographers for their distinctive plant life.......
flyway, route used regularly by migrating birds, bats, or butterflies. The large majority of such migrants move......
food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.......
food web, a complex network of interconnecting and overlapping food chains showing feeding relationships within......
Ford Foundation, American philanthropic foundation, established in 1936 with gifts and bequests from Henry Ford......
forest, complex ecological system and natural resource in which trees are the dominant life-form. Forests can occur......
forest fire, uncontrolled fire occurring in vegetation more than 1.8 metres (6 feet) in height. These fires often......
Forlandet National Park, national park and bird sanctuary established in 1973 by Norway’s Environment Ministry......
Dian Fossey was an American zoologist who became the world’s leading authority on the mountain gorilla. Fossey......
Fray Jorge National Park, national park in the Coquimbo región, north-central Chile. It lies about 60 miles (100......
freezing nucleus, any particle that, when present in a mass of supercooled water, will induce growth of an ice......
Friends of the Earth International, network of environmental and social-justice activist organizations that operate......
frugivore, any animal that subsists totally or primarily on fruit. Although the diets of many animals include fruits,......
Fundy National Park, national park in New Brunswick, Canada, on the Atlantic coast overlooking the Bay of Fundy,......
fynbos, scrubland plant community found along a narrow strip of the extreme southern coast of South Africa, composed......
Biruté Galdikas is a primatologist, conservationist, and educator who, having dedicated more than half a century......
Garamba National Park, large natural area in northeastern Democratic Republic of the Congo, bordering on South......
Garden Route National Park, national park in Eastern Cape and Western Cape provinces, South Africa. The park, established......
Gaspesian Provincial Park, park in eastern Quebec province, Canada. The park occupies 500 square miles (1,295 square......
Gates of the Arctic National Park and Preserve, large, remote wilderness area in northern Alaska, U.S. It is part......
geochemical facies, area or zone characterized by particular physiochemical conditions that influence the production......
geographic mosaic theory of coevolution, in ecology, the theory postulating that the long-term dynamics of coevolution......
geographic range, in ecology, the collective area in which all members of a particular species are found during......
Ghost forests are likely not filled with ghosts, but they should probably scare us. A ghost forest is a stand of......
Corrado Gini was an Italian statistician and demographer. Gini was educated at Bologna, where he studied law, mathematics,......
Gir National Park, national park in Gujarat state, west-central India, located about 37 miles (60 km) south-southwest......
glacial stage, in geology, a cold episode during an ice age, or glacial period. An ice age is a portion of geologic......
Glacier Bay National Park and Preserve, large natural area in southeastern Alaska, U.S., on the Gulf of Alaska.......
Glacier National Park, park in southeastern British Columbia, Canada, lying in the heart of the Selkirk Mountains,......
Glacier National Park, scenic wilderness area in the northern Rocky Mountains in northwestern Montana, U.S., adjoining......
Glenmore, national forest park in the foothills of the Cairngorm Mountains, Highland council area, north-central......
Global Greens Charter, cooperative agreement made by an international group of environmentally minded political......
global warming, the phenomenon of increasing average air temperatures near the surface of Earth over the past one......
- Introduction
- Climate Change, Glaciation, Effects
- Greenhouse Gases, Climate Change, Pollution
- Radiative Forcing
- Carbon Dioxide, Climate Change, Greenhouse Gases
- Ozone, Compounds, Pollution
- Land Use, Climate Change, Emissions
- Volcanic Aerosols
- Orbital Variations, Climate Change, Earth
- Climate Sensitivity, Feedback, Impacts
- Climate Research
- Climate Models, Emissions, Impacts
- Climate Change, Impacts, Solutions
- Ice Melt, Sea Level Rise
- Climate Change, Melting Ice, Rising Sea Levels
- Socioeconomic Impacts, Climate Change, Adaptation
global warming policy, the process by which key decisions regarding the mitigation of global warming and its effects......
Golden Gate Highlands National Park, national park in southeastern Free State province, South Africa, near the......
Al Gore is an American politician and environmental activist who served as the 45th vice president of the United......
Gran Paradiso National Park, park in northwestern Italy, established in 1836 as a hunting zone; in 1856 it became......
Grand Canyon–Parashant National Monument, large natural area in northwestern Arizona, U.S., north of the Grand......
Grand Staircase–Escalante National Monument, rugged remote region of colourful cliffs and canyons in southern Utah,......
Grand Teton National Park, spectacular glaciated mountain region in northwestern Wyoming, U.S. It lies just south......
grassland, area in which the vegetation is dominated by a nearly continuous cover of grasses. Grasslands occur......
Great Basin National Park, scenic region in eastern Nevada, U.S., just west of Baker and about 40 miles (65 km)......
Great Pacific Garbage Patch, a zone in the Pacific Ocean between Hawaii and California that has a high concentration......
Great Sand Dunes National Park and Preserve, area of large sand dunes and mountainous terrain in south-central......
Great Smog of London, lethal smog that covered the city of London for five days, from December 5 to December 9,......
Green Party, political party founded in 1981 to promote an environmental agenda in the Republic of Ireland. The......
Green Party of Germany, German environmentalist political party. It first won representation at the national level......
greenhouse effect, a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by......
greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s......
Greenpeace, international organization dedicated to preserving endangered species of animals, preventing environmental......
the Greens, Australian environmentalist political party founded in 1992. It had its origins in the United Tasmania......
the Greens, any of various environmentalist or ecological-oriented political parties that formed beginning in the......
Ólafur Ragnar Grímsson is an Icelandic educator and politician who was the longest-serving president of Iceland......
guild, in ecology, a group of species that exploits the same kinds of resources in comparable ways. The name “guild”......
Haarlem Lake, polder (area 45,700 acres [18,486 hectares]) coextensive with the gemeente (municipality) of Haarlemmermeer......
habitat, place where an organism or a community of organisms lives, including all living and nonliving factors......
habitat loss, in ecology, the reduction or elimination of the space in which a species or community of organisms......
halocline, vertical zone in the oceanic water column in which salinity changes rapidly with depth, located below......
While Old Faithful in Yellowstone National Park is now considered a treasured U.S. landmark, in the 1800s some......
Algal blooms, or water blooms, are a common summertime occurrence in many places. They occur when a species of......
Klaus Hasselmann is a German oceanographer who was awarded the Nobel Prize for Physics in 2021 for the foundational......
Hazaribag Wildlife Sanctuary, national park, north-central Jharkhand state, northeastern India. The sanctuary is......
heat wave, period of prolonged abnormally high surface temperatures relative to those normally expected. Heat waves......
Heinrich event, any of a series of at least six large discharges of icebergs that carried coarse-grained rocky......
Henri Pittier National Park, park in the Cordillera de la Costa, Aragua estado (state), Venezuela, occupying an......
herbivore, animal adapted to subsist solely on plant tissues. The herbivores range from insects (such as aphids)......
heterotroph, in ecology, an organism that consumes other organisms in a food chain. In contrast to autotrophs,......
Julia Butterfly Hill is an American activist known for having lived in a tree for 738 days in an act of civil disobedience......
Octavia Hill was a leader of the British open-space movement, which resulted in the foundation (1895) of the National......
Albert Spear Hitchcock was a U.S. botanist and specialist on the taxonomy of the world’s grasses who developed......
Hluhluwe Game Reserve, game reserve in northern KwaZulu/Natal province, South Africa, established in 1897. It lies......
Linda Hogan is a Chickasaw poet and novelist whose works often revolve around environmental concerns. Hogan spent......
Holarctic region, one of the six major land areas of the world defined on the basis of its characteristic animal......
homing, ability of certain animals to return to a given place when displaced from it, often over great distances.......
Theodore Jesse Hoover was an American mining engineer, naturalist, educator, and the elder brother of U.S. Pres.......
hot spot, any one of several biodiverse regions which requires protection on the grounds that it hosts a significant......
The Great Barrier Reef is one of Earth’s most magnificent natural monuments. This complex of coral reefs, shoals,......
Antarctica holds the record for the lowest temperature ever recorded on Earth. At Vostok Station, a Russian research......
In the Northern Hemisphere, migratory birds tend to fly south to spend the winter in warmer locales. (Though in......
Cloud formation, a key part of the water cycle, begins as moist air ascends into the atmosphere. This occurs because,......
The standard many college textbooks use to define a desert is: an area receiving less than 10 inches (250 mm) of......
Ocean currents are streams of water in the ocean whose circulation is produced by gravity, wind friction, and water......
Only a handful of the more than 20,000 species of bees on Earth make honey, with domesticated honeybees (Apis mellifera)......