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Level 17

Global Warming & New Questions On Science


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anthropogenic
of or related to the influence of human beings.
biodiversity
the variation of life forms within a given ecosystem.
chlorofluorocarbons
synthetic compounds containing carbon, chlorine, and fluorine that are used in refrigerants, propellants, the manufacture of foams, and cleaning solvents.
Climax Community
Relatively stable community at the end of succession
Global Warming
the recent and ongoing global average increase in temperature near the Earth's surface
heat island
the warm air found around and above an urban area, distinct from the air temperature above the surrounding rural land.
methane hydrates
large amounts of methane trapped within a crystal structure of water, forming a solid similar to ice.
ozone hole
a region of the stratosphere over Antarctica (and a smaller one over the Arctic) that is depleted of ozone in the local spring.
permafrost
ground that is permanently frozen.
photon
a discrete small quantity of electromagnetic radiation. All matter absorbs and emits photons.
stratosphere
a region in the uppermost atmosphere where temperature increases along with the altitude due to the absorption of solar ultraviolet radiation by ozone.
stratospheric ozone
a layer in Earth's atmosphere located in the lower portion of the stratosphere (from approximately 8-12 miles [13 km-20 km] above the surface) that contains relatively high concentrations of ozone (O3) and absorbs u…
thermohaline circulation
a three-dimensional pattern of ocean circulation driven by wind, heat, and salinity that is an important component of the ocean-atmosphere climate.
troposphere
the lowest portion of Earth's atmosphere; contains approximately 75% of the atmosphere's mass and 99% of its water vapor and gasses.
UVA
a long-wavelength ultraviolet ray from the sun. Known as the "aging" rays in the UV spectrum that can harm the skin.
UVB
short-wave UV radiation that causes eye damage and skin cancer in humans and animals and damages the photosynthetic pathways of plants.
UVC
shortest wavelength of ultraviolet radiation; contains the highest energy and poses the greatest risk to the planet. This wavelength of UV radiation is absorbed by the upper atmosphere (ozone layer) and does not reach the Earth's surface.
Global
world wide
Warming
a heating
Green house Effect
the effect of green house gasses
Green house gasses
chemicals let into the air by things like cars
green house
a place that filters harmful things and keeps good ones!
Level 18