UNIT 2 VOCAB
Abiotic Factors = nonliving, physical factors that influence the organisms and
ecosystems
Ex. temperature, sunlight, pH, salinity, precipitation, pollutants
Adaptation = initiatives and measures to reduce the vulnerability of human and natural
systems to climate change
Albedo = the amount of incoming solar energy reflected back into the atmosphere by the
Earth’s surface
Anthropogenic = human-related processes and/ or impacts
Autotrophs = primary producers that use light or inorganic chemical reactions to create
the energy needed to survive
Bioaccumulation = the build-up of persistent/ non-biodegradable pollutants within an
organism or trophic level because they cannot be broken down
Biodiversity = the variety of different types of life found on Earth or in a specific ecosystem
Biogeography = the study of the geographical distribution of species, and explains their
current distribution using evolutionary history
*important for predicting how biodiversity will respond to Climate Change
Biological Degradation = associated with the deforestation practice of clear cutting trees
and removing them from the area to be processed into
products; loss of humus / organic (O) horizon of the soil
Biomagnification = the increase in concentration of persistent or non-biodegradable
pollutants along a food chain
Biomes = collections of Ecosystems sharing similar climatic conditions
Biosphere = the global sum of all ecosystems; the closed system that holds all life on
Earth
Biotic Factors = the living components of an ecosystem, including organisms, their
interactions, or their waste, that directly or indirectly affect another
organism
Carbon Capture and Sequestration = CCS = the technology of capturing greenhouse gas
emissions from power stations and pumping them back
into underground reservoirs= Geosequestration
Carbon Dioxide = a natural ghg that has seen an exponential increase in atmospheric
concentrations, and is associated with global warming
Carnivores = secondary consumer that has adapted to eating primary consumers
ChloroFluoroCarbon = CFC = synthetic (man-made) ghg that is extremely efficient at
trapping heat in the atmosphere; produced from aerosol cans and
is illegal in most developed countries now
CITES = Conservation on International Trade in Endangered Species = an
international agreement established in 1973 that aimed at regulating trade in
endangered species of both plants and animals, but covers all plants and
animals caught in the wild
Conduction = the transfer of heat by direct contact
Consumers = Heterotrophs = organisms that cannot make their own food so must eat
other organisms; they pass energy and biomass from producers through to
top carnivores; feed on Autotrophs or other Heterotrophs to obtain Energy;
Ex. herbivores, carnivores, omnivores, detritivores, decomposers
Convection = the transfer of heat by the movement of a gas or a liquid; tendency for hot
air to rise
Cryosphere = the zone around the Earth associated with ice sheets, glaciers, and snow
Decomposers = obtain their food and nutrients from the breakdown of dead organic
matter; essential for cycling matter in ecosystems; contribute to the build
up of humus in soil
Decarbonization = a large reduction of CO2 per value of gross world product
Deforestation = clear cutting a wide area of trees
Ecology = the branch of biology that deals with the relations of organisms to one another
and their physical surroundings
Ecosystem = a community of living organisms (plants, animals, microbes) in conjunction
with the nonliving components of their environment (air, water, soil)
Endemic Species = a species not found anywhere else
Enhanced Greenhouse Effect = the increasing amount of greenhouse gases in the
atmosphere, as a result of human activities, and their
impacts on atmospheric systems, including global
warming
Equinox = occurs twice per year when the sun crosses the celestial equator and day and
night are equal lengths of time; September 21stand March 21st
Eustatic Changes = the rise and fall of the Sea
Exosphere = the outermost region of any planet’s atmosphere
Feedback Loop = when information that starts a reaction in turn may input more
information which may start another reaction
Fossil Fuel = form in the geologic past from the remains of living organisms (like trees
and plankton) and become: coal, oil, oil shale or natural gas
Flagship Species = charismatic animals selected for protection to appeal to the public
and thereby help to protect other species in an area
Geographical Isolation = a physical barrier, such as a mountain range, that causes
populations to become separated
Geosequestration = the technology of capturing greenhouse gas emissions from power
stations and pumping them back into underground reservoirs =
Carbon Capture and Sequestration (CCS)
Geothermal Energy = long-wave radiation that originates from Earth’s core
Glacier = a slowly moving mass or river of ice formed by the accumulation and
compaction of snow on mountains or near the poles
Global Climate Change = changes in the global patterns of rainfall, temperature, sea
level, habitats, and includes the incidence of drought, floods,
and storms, resulting from changes in the Earth’s Atmosphere,
believed to be caused mainly by the Enhanced Greenhouse
Effect
Global Dimming = the cooling effect of air pollution
Global Warming = the increase in temperatures around the world that have been noticed
since the 1960s, and in particular since the 1980s
Greenhouse Effect = the process by which certain gases allow short-wave radiation from
the sun to pass through the atmosphere and heat up the Earth, but
trap an increasing proportion of long-wave radiation that is reflected
Greenhouse Gas = GHG = water vapor, carbon dioxide, methane and
chlorofluorocarbons (CFCs)
Greenpeace: - an International Civil Society from Vancouver, Canada- 1971
- very confrontational
- fights against climate change, waste disposal and deforestation
- Goal: “to ensure the continuing ability of the Earth to nurture life in all
of its diversity”
Habitat = the environment in which a species normally lives
Heat = long-wave radiation; infrared
Herbivores = primary consumers that have adapted to eating plants
Hot Spot = an area high in Biodiversity
Insolation = shortwave radiation from the Sun; Incoming Solar Radiation
Intergovernmental Panel on Climate Change = IPCC = group of scientists from around
the world that study the causes and consequences of Climate Change
International Union of Conservation of Nature = IUCN = World Conservation Union;
publishes the Red List(Red Data Books); founded in 1948 to Conserve
resources for Sustainable Economic Development
Ionosphere = the layer of the Earth’s atmosphere that contains a high concentration of
ions and free electrons and is able to reflect radio waves; begins midway
through the Mesosphere and extends to the Exosphere
Irrigation = the artificial addition of water to soil in areas where there is insufficient
amounts naturally
Isostatic Changes = the rise and fall of the Land
Keystone Species = species that are vital for the continuing function of the ecosystem
Kyoto Protocol = called on countries globally to reduce emissions of CO2 at a “common
but differentiated” rate based on their historic pollution levels
Mass Extinctions = a period in which at least 75% of the total number of species on the
Earth at the time are wiped out
Mesosphere = atmospheric zone between the Stratosphere and Thermosphere associated
with a decrease in temperature as altitude increases due to a decrease in
UV absorption
Mesopause = the line that separates the Thermosphere from the Mesosphere at 80 km
above the surface of the Earth
Milankovitch Cycle = a cyclical movement related to the Earth’s elliptical orbit around
the Sun, it’s tilt, and precession
Malaria = a fever caused by a protozoan parasite that invades the red blood cells and is
transmitted by mosquitoes in many tropical and subtropical regions
Methane = a ghg that is the second largest contributor to global warming produced
mainly from farm animals and manure that is very efficient at trapping heat,
and increasing in concentrations
Mitigation = attempts to reduce the causes of climate change
Natural Capital = environmental resources that can produce a sustainable income of
goods or services
Natural Income = the yield obtained from environmental resources
Negative Feedback Loop = stabilizing; when the output of a process inhibits or reverses
the operation of the same process in such a way to reduce
change; counteracts deviation; self-regulating; results in
Steady-State Equilibrium
Niche = describes the particular set of abiotic and biotic conditions and resources to
which an organism or population responds
Non-Governmental Organization = NGO = groups of people that are not run by, funded
by, or influenced by governments of any country
Ozone Layer = protective atmospheric concentration of O3 located between 25 – 35 km
above the surface of the planet in the Stratosphere
Periglacial = an area adjacent to an ice sheet subject to frequent freezing and thawing
Permafrost = a thick subsurface layer of soil that remains frozen throughout the year
Pollution = the addition of a substance or an agent to an environment by human activity,
at a rate greater than which it can be rendered harmless by the environment,
and which has an appreciable effect on the organisms within it
Positive Feedback Loop = destabilizing; will tend to amplify changes and drive the
system toward a tipping point where a new equilibrium is
adopted
Radiation = the emission of electromagnetic waves such as ultraviolet, visible light, X-
ray, short-wave and long-wave from the intense heat (5,700 degrees C) of the
Sun
Red List = a series of books published by the IUCN that assess the conservation status in
order to highlight plants and animals threatened with extinction and to
promote their conservation; an inventory of all endangered species
Reduced Impact Logging = RIL = selective logging
Resilience = the ability of a population or a human or natural system to absorb change
without having to make a fundamental change; the ability of a system to
return to its initial state after a disturbance
Ex. Eucalypt Forests of Australia and fire
Sequester = to isolate or hide away
Sheet Erosion = when the entire top layer of soil is lost- usually from mismanagement
Soil Degradation = a severe reduction in the quality or quantity of soils through Erosion,
Salinization, and Exhaustion
Solstice = when the Sun reaches its highest (Summer) or lowest (Winter) point in the sky
at noon, marked by the longest and shortest days of the year; on June 21stand
December 21st
Speciation = the formation of new species when populations of a species become isolated
and evolve differently from other populations
Species = a group of organisms (living things) sharing common characteristics that
interbreed and produce fertile offspring
Stratopause = the atmospheric boundary line that separates the Stratosphere from the
Mesosphere at an elevation of roughly 50 km
Stratosphere = the atmospheric zone between the Troposphere and the Mesosphere that
sees a rise in temperature with altitude due to the presence of Ozone
Sustainability = the use and management of resources that allows full natural
replacement of the resources exploited and full recovery of the
ecosystems affected by their extraction and use
= living within the means of nature, on the interest or sustainable natural
income generated by natural capital
Sustainable Development = meeting the needs of the present without compromising the
ability of future generations to meet their own needs
Thermosphere = the top atmospheric zone associated with a drastic increase in
temperature with increasing altitude from the impact of short-wave
radiation; starts 80 km above the surface and is close to a vacuum
Tipping Point = when an ecosystem experiences a shift to a new state in which there are
significant changes to its biodiversity and the services it provides;
involve positive feedback loops
Trophic Levels = the position within the food chain occupied by different organisms
Tropics = mostly warm climates that experience daily rain, contain an extreme amount of
biodiversity and use all nutrients extremely efficiently; mostly occur between
the Tropic of Capricorn and Cancer
Tropopause = the atmospheric boundary line that separates the Troposphere from the
Stratosphere
Troposphere = atmospheric zone closest to the Earth’s surface associated with most
weather patterns; temperature decreases with height as the atmosphere
thins
UNFCCC = UN Framework Convention on Climate Change= 1992 summit with the
objective to achieve stabilization of greenhouse gas concentrations in the
atmosphere at a level that would prevent dangerous anthropogenic
interference with the climate system
Vulnerability = the degree to which a human or natural system is susceptible to, and
unable to cope with, the adverse impacts of climate change
World Wide Fund for Nature= WWF= NGO that protects endangered species, and
fights climate change and pollution; sometimes just
called World Wildlife Fund
Abiotic Factors = nonliving, physical factors that influence the organisms and
ecosystems
Ex. temperature, sunlight, pH, salinity, precipitation, pollutants
Adaptation = initiatives and measures to reduce the vulnerability of human and natural
systems to climate change
Albedo = the amount of incoming solar energy reflected back into the atmosphere by the
Earth’s surface
Anthropogenic = human-related processes and/ or impacts
Autotrophs = primary producers that use light or inorganic chemical reactions to create
the energy needed to survive
Bioaccumulation = the build-up of persistent/ non-biodegradable pollutants within an
organism or trophic level because they cannot be broken down
Biodiversity = the variety of different types of life found on Earth or in a specific ecosystem
Biogeography = the study of the geographical distribution of species, and explains their
current distribution using evolutionary history
*important for predicting how biodiversity will respond to Climate Change
Biological Degradation = associated with the deforestation practice of clear cutting trees
and removing them from the area to be processed into
products; loss of humus / organic (O) horizon of the soil
Biomagnification = the increase in concentration of persistent or non-biodegradable
pollutants along a food chain
Biomes = collections of Ecosystems sharing similar climatic conditions
Biosphere = the global sum of all ecosystems; the closed system that holds all life on
Earth
Biotic Factors = the living components of an ecosystem, including organisms, their
interactions, or their waste, that directly or indirectly affect another
organism
Carbon Capture and Sequestration = CCS = the technology of capturing greenhouse gas
emissions from power stations and pumping them back
into underground reservoirs= Geosequestration
Carbon Dioxide = a natural ghg that has seen an exponential increase in atmospheric
concentrations, and is associated with global warming
Carnivores = secondary consumer that has adapted to eating primary consumers
ChloroFluoroCarbon = CFC = synthetic (man-made) ghg that is extremely efficient at
trapping heat in the atmosphere; produced from aerosol cans and
is illegal in most developed countries now
CITES = Conservation on International Trade in Endangered Species = an
international agreement established in 1973 that aimed at regulating trade in
endangered species of both plants and animals, but covers all plants and
animals caught in the wild
Conduction = the transfer of heat by direct contact
Consumers = Heterotrophs = organisms that cannot make their own food so must eat
other organisms; they pass energy and biomass from producers through to
top carnivores; feed on Autotrophs or other Heterotrophs to obtain Energy;
Ex. herbivores, carnivores, omnivores, detritivores, decomposers
Convection = the transfer of heat by the movement of a gas or a liquid; tendency for hot
air to rise
Cryosphere = the zone around the Earth associated with ice sheets, glaciers, and snow
Decomposers = obtain their food and nutrients from the breakdown of dead organic
matter; essential for cycling matter in ecosystems; contribute to the build
up of humus in soil
Decarbonization = a large reduction of CO2 per value of gross world product
Deforestation = clear cutting a wide area of trees
Ecology = the branch of biology that deals with the relations of organisms to one another
and their physical surroundings
Ecosystem = a community of living organisms (plants, animals, microbes) in conjunction
with the nonliving components of their environment (air, water, soil)
Endemic Species = a species not found anywhere else
Enhanced Greenhouse Effect = the increasing amount of greenhouse gases in the
atmosphere, as a result of human activities, and their
impacts on atmospheric systems, including global
warming
Equinox = occurs twice per year when the sun crosses the celestial equator and day and
night are equal lengths of time; September 21stand March 21st
Eustatic Changes = the rise and fall of the Sea
Exosphere = the outermost region of any planet’s atmosphere
Feedback Loop = when information that starts a reaction in turn may input more
information which may start another reaction
Fossil Fuel = form in the geologic past from the remains of living organisms (like trees
and plankton) and become: coal, oil, oil shale or natural gas
Flagship Species = charismatic animals selected for protection to appeal to the public
and thereby help to protect other species in an area
Geographical Isolation = a physical barrier, such as a mountain range, that causes
populations to become separated
Geosequestration = the technology of capturing greenhouse gas emissions from power
stations and pumping them back into underground reservoirs =
Carbon Capture and Sequestration (CCS)
Geothermal Energy = long-wave radiation that originates from Earth’s core
Glacier = a slowly moving mass or river of ice formed by the accumulation and
compaction of snow on mountains or near the poles
Global Climate Change = changes in the global patterns of rainfall, temperature, sea
level, habitats, and includes the incidence of drought, floods,
and storms, resulting from changes in the Earth’s Atmosphere,
believed to be caused mainly by the Enhanced Greenhouse
Effect
Global Dimming = the cooling effect of air pollution
Global Warming = the increase in temperatures around the world that have been noticed
since the 1960s, and in particular since the 1980s
Greenhouse Effect = the process by which certain gases allow short-wave radiation from
the sun to pass through the atmosphere and heat up the Earth, but
trap an increasing proportion of long-wave radiation that is reflected
Greenhouse Gas = GHG = water vapor, carbon dioxide, methane and
chlorofluorocarbons (CFCs)
Greenpeace: - an International Civil Society from Vancouver, Canada- 1971
- very confrontational
- fights against climate change, waste disposal and deforestation
- Goal: “to ensure the continuing ability of the Earth to nurture life in all
of its diversity”
Habitat = the environment in which a species normally lives
Heat = long-wave radiation; infrared
Herbivores = primary consumers that have adapted to eating plants
Hot Spot = an area high in Biodiversity
Insolation = shortwave radiation from the Sun; Incoming Solar Radiation
Intergovernmental Panel on Climate Change = IPCC = group of scientists from around
the world that study the causes and consequences of Climate Change
International Union of Conservation of Nature = IUCN = World Conservation Union;
publishes the Red List(Red Data Books); founded in 1948 to Conserve
resources for Sustainable Economic Development
Ionosphere = the layer of the Earth’s atmosphere that contains a high concentration of
ions and free electrons and is able to reflect radio waves; begins midway
through the Mesosphere and extends to the Exosphere
Irrigation = the artificial addition of water to soil in areas where there is insufficient
amounts naturally
Isostatic Changes = the rise and fall of the Land
Keystone Species = species that are vital for the continuing function of the ecosystem
Kyoto Protocol = called on countries globally to reduce emissions of CO2 at a “common
but differentiated” rate based on their historic pollution levels
Mass Extinctions = a period in which at least 75% of the total number of species on the
Earth at the time are wiped out
Mesosphere = atmospheric zone between the Stratosphere and Thermosphere associated
with a decrease in temperature as altitude increases due to a decrease in
UV absorption
Mesopause = the line that separates the Thermosphere from the Mesosphere at 80 km
above the surface of the Earth
Milankovitch Cycle = a cyclical movement related to the Earth’s elliptical orbit around
the Sun, it’s tilt, and precession
Malaria = a fever caused by a protozoan parasite that invades the red blood cells and is
transmitted by mosquitoes in many tropical and subtropical regions
Methane = a ghg that is the second largest contributor to global warming produced
mainly from farm animals and manure that is very efficient at trapping heat,
and increasing in concentrations
Mitigation = attempts to reduce the causes of climate change
Natural Capital = environmental resources that can produce a sustainable income of
goods or services
Natural Income = the yield obtained from environmental resources
Negative Feedback Loop = stabilizing; when the output of a process inhibits or reverses
the operation of the same process in such a way to reduce
change; counteracts deviation; self-regulating; results in
Steady-State Equilibrium
Niche = describes the particular set of abiotic and biotic conditions and resources to
which an organism or population responds
Non-Governmental Organization = NGO = groups of people that are not run by, funded
by, or influenced by governments of any country
Ozone Layer = protective atmospheric concentration of O3 located between 25 – 35 km
above the surface of the planet in the Stratosphere
Periglacial = an area adjacent to an ice sheet subject to frequent freezing and thawing
Permafrost = a thick subsurface layer of soil that remains frozen throughout the year
Pollution = the addition of a substance or an agent to an environment by human activity,
at a rate greater than which it can be rendered harmless by the environment,
and which has an appreciable effect on the organisms within it
Positive Feedback Loop = destabilizing; will tend to amplify changes and drive the
system toward a tipping point where a new equilibrium is
adopted
Radiation = the emission of electromagnetic waves such as ultraviolet, visible light, X-
ray, short-wave and long-wave from the intense heat (5,700 degrees C) of the
Sun
Red List = a series of books published by the IUCN that assess the conservation status in
order to highlight plants and animals threatened with extinction and to
promote their conservation; an inventory of all endangered species
Reduced Impact Logging = RIL = selective logging
Resilience = the ability of a population or a human or natural system to absorb change
without having to make a fundamental change; the ability of a system to
return to its initial state after a disturbance
Ex. Eucalypt Forests of Australia and fire
Sequester = to isolate or hide away
Sheet Erosion = when the entire top layer of soil is lost- usually from mismanagement
Soil Degradation = a severe reduction in the quality or quantity of soils through Erosion,
Salinization, and Exhaustion
Solstice = when the Sun reaches its highest (Summer) or lowest (Winter) point in the sky
at noon, marked by the longest and shortest days of the year; on June 21stand
December 21st
Speciation = the formation of new species when populations of a species become isolated
and evolve differently from other populations
Species = a group of organisms (living things) sharing common characteristics that
interbreed and produce fertile offspring
Stratopause = the atmospheric boundary line that separates the Stratosphere from the
Mesosphere at an elevation of roughly 50 km
Stratosphere = the atmospheric zone between the Troposphere and the Mesosphere that
sees a rise in temperature with altitude due to the presence of Ozone
Sustainability = the use and management of resources that allows full natural
replacement of the resources exploited and full recovery of the
ecosystems affected by their extraction and use
= living within the means of nature, on the interest or sustainable natural
income generated by natural capital
Sustainable Development = meeting the needs of the present without compromising the
ability of future generations to meet their own needs
Thermosphere = the top atmospheric zone associated with a drastic increase in
temperature with increasing altitude from the impact of short-wave
radiation; starts 80 km above the surface and is close to a vacuum
Tipping Point = when an ecosystem experiences a shift to a new state in which there are
significant changes to its biodiversity and the services it provides;
involve positive feedback loops
Trophic Levels = the position within the food chain occupied by different organisms
Tropics = mostly warm climates that experience daily rain, contain an extreme amount of
biodiversity and use all nutrients extremely efficiently; mostly occur between
the Tropic of Capricorn and Cancer
Tropopause = the atmospheric boundary line that separates the Troposphere from the
Stratosphere
Troposphere = atmospheric zone closest to the Earth’s surface associated with most
weather patterns; temperature decreases with height as the atmosphere
thins
UNFCCC = UN Framework Convention on Climate Change= 1992 summit with the
objective to achieve stabilization of greenhouse gas concentrations in the
atmosphere at a level that would prevent dangerous anthropogenic
interference with the climate system
Vulnerability = the degree to which a human or natural system is susceptible to, and
unable to cope with, the adverse impacts of climate change
World Wide Fund for Nature= WWF= NGO that protects endangered species, and
fights climate change and pollution; sometimes just
called World Wildlife Fund