ozone decline

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• Decline in amphibian populations — The Golden toad of Monteverde, Costa Rica, was among the first casualties of amphibian declines. Formerly abundant, it was last seen in 1989. Dramatic declines in amphibian populations, including population crashes and mass localized extinctions …   Wikipedia

• Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …   Wikipedia

• ozone depletion — /oʊzoʊn dəˈpliʃən/ (say ohzohn duh pleeshuhn) noun a decline in the amount of ozone in the earth s stratosphere. Ozone depletion occurs in the stratosphere in response to the breakdown of compounds such as chlorofluorocarbons containing chlorine… …  

• Scientific Assessment of Ozone Depletion — The Scientific Assessment of Ozone Depletion is a sequence of reports sponsored by WMO/UNEP. The most recent is the [http://www.wmo.int/pages/prog/arep/gaw/ozone 2006/ozone asst report.html 2006 report] .The reports were set up to inform the… …   Wikipedia

• Pollinator decline — The term Pollinator decline refers to the reduction in abundance of pollinators in many ecosystems worldwide during the end of the twentieth century.Pollinators participate in sexual reproduction of many plants, by ensuring cross pollination,… …   Wikipedia

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium

• Declin des populations d'amphibiens — Déclin des populations d amphibiens Le crapaud doré (Bufo periglenes), a été un des premiers indicateurs du déclin des populations d’amphibiens. Considéré dans les années 1980 comme abondant dans son habitat au Costa Rica, il a été observé pour… …   Wikipédia en Français

• Déclin Des Populations D'amphibiens — Le crapaud doré (Bufo periglenes), a été un des premiers indicateurs du déclin des populations d’amphibiens. Considéré dans les années 1980 comme abondant dans son habitat au Costa Rica, il a été observé pour la dernière fois en 1989 …   Wikipédia en Français

• Déclin des populations d'amphibiens — Le crapaud doré (Incilius periglenes ), a été un des premiers indicateurs du déclin des populations d’amphibiens. Considéré dans les années 1980 comme abondant dans son habitat au Costa Rica, il a été observé pour la dernière fois en 1989[1]. Les …   Wikipédia en Français

• Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium