web thinning

См. также в других словарях:

• Retreat of glaciers since 1850 — The retreat of glaciers since 1850, worldwide and rapid, affects the availability of fresh water for irrigation and domestic use, mountain recreation, animals and plants that depend on glacier melt, and in the longer term, the level of the oceans …   Wikipedia

• Keratoconus — Classification and external resources The conical cornea that is characteristic of keratoconus ICD 10 H …   Wikipedia

• DDT — For other uses, see DDT (disambiguation). DDT …   Wikipedia

• Sea level rise — is an increase in sea level. Multiple complex factors may influence this change. Sea level has risen about 130 meters (400 ft) since the peak of the last ice age about 18,000 years ago. Most of the rise occurred before 6,000 years ago. From 3,000 …   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

• Healthy Forests Initiative — The Healthy Forests Initiative (or HFI), officially the Healthy Forests Restoration Act of 2003, is a law originally proposed by President George W. Bush in response to the widespread forest fires during the summer of 2002 [cite web url=… …   Wikipedia

• Tidewater glacier cycle — The tidewater glacier cycle is the typically centuries long behavior of tidewater glaciers that consists of recurring periods of advance alternating with rapid retreat and punctuated by periods of stability. During portions of its cycle, a… …   Wikipedia

• 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

• 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

• Adam's Bridge — (Tamil: ta. ஆதாம் பாலம் transl|ta|āthām pālam ), also known as Rama s Bridge or Ram Setu (Tamil: ta. இராமர் பாலம் transl|ta|irāmar pālam , Sanskrit: sa. रामसेतु IAST|rāmasetu ) [also spelled Rama Setu , Ram Sethu , Ramasethu and variants.] , is a …   Wikipedia

• Health and Disease — ▪ 2009 Introduction Food and Drug Safety.       In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …   Universalium