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WWF urges banks to block Sakhalin oil plan and save whales

Environment group WWF on Thursday urged three European banks to block Russian giant Sakhalin Energy's plan to build an oil drilling platform that the group claims could harm the endangered grey whale.

Biology / Ecology

created Feb 09, 2012 | popularity not rated yet | comments 0

18 endangered dolphins spotted off Borneo: WWF

Conservation group WWF said it spotted 18 critically endangered Irrawaddy dolphins in Indonesian waters off Borneo island Tuesday and called for greater protection of the species' habitat.

Biology / Plants & Animals

created Feb 07, 2012 | popularity 5 / 5 (1) | comments 0

'Atlantis' volcano gives tips for mega-eruptions

Around 1630 BC, a super-volcano blew apart the Aegean island of Santorini, an event so violent that some theorists say it nurtured the legend of Atlantis.

Space & Earth / Earth Sciences

created Feb 01, 2012 | popularity 4.8 / 5 (6) | comments 2

Transgene insects: Scientists call for more open data

While genetically modified plants have already been introduced into the wild on a large scale in some parts of the world, the release of genetically modified animals is still at a relatively early stage. A ...

Biology / Biotechnology

created Feb 01, 2012 | popularity not rated yet | comments 0

Image: Crack discovered in Pine Island Glacier

(PhysOrg.com) -- In mid-October 2011, NASA scientists working in Antarctica discovered a massive crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. Extending ...

Space & Earth / Earth Sciences

created Feb 01, 2012 | popularity 4.7 / 5 (10) | comments 5

New study may answer questions about enigmatic Little Ice Age

A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 4.7 / 5 (7) | comments 9 | with audio podcast

Cloud streets off of the Aleutian Islands

(PhysOrg.com) -- Strong winds polished the snow of southwestern Alaska and stretched marine stratocumulus clouds into long, parallel streets in early January, 2012. After crossing Bristol Bay, the winds scraped ...

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 5 / 5 (1) | comments 0

What do killer whales eat in the Arctic?

Killer whales (Orcinus orca) are the top marine predator, wherever they are found, and seem to eat everything from schools of small fish to large baleen whales, over twice their own size. The increase in hun ...

Biology / Plants & Animals

created Jan 30, 2012 | popularity 4 / 5 (1) | comments 0

NASA eyes cyclone Iggy's threat to western Australia

NASA satellites are providing valuable data to forecasters as Tropical Cyclone Iggy nears Western Australia. NASA's Aqua satellite provided visible and infrared data on Iggy, observing colder cloud tops and ...

Space & Earth / Earth Sciences

created Jan 28, 2012 | popularity not rated yet | comments 0

Haiti should brace for more devastating quakes: study

The 2010 earthquake that devastated southern Haiti may have opened a new era of seismic activity and residents should brace for more massive temblors, said a US study on Thursday.

Space & Earth / Earth Sciences

created Jan 26, 2012 | popularity 3.7 / 5 (3) | comments 1

White roofs to make for cooler Melbourne buildings

The research assesses the benefits of white roofs and aims to help residential, commercial and industrial building owners determine if white roofs are suitable for their buildings and guide them through the best materials ...

Technology / Energy & Green Tech

created Jan 25, 2012 | popularity not rated yet | comments 0

Malaysia saves endangered pygmy elephant on Borneo

Malaysian wildlife authorities said they had rescued a pygmy elephant calf on Borneo island and expressed hope a planned sanctuary would provide protection for the endangered animals.

Biology / Plants & Animals

created Jan 24, 2012 | popularity 5 / 5 (1) | comments 0

Sumatran elephants could be extinct in 30 years

The Sumatran elephant could be extinct in the wild within three decades unless immediate steps are taken to slow the breakneck pace of deforestation, environmentalists warned Tuesday.

Biology / Ecology

created Jan 24, 2012 | popularity not rated yet | comments 0

Report: Mental illness struck 1 in 5 US adults in 2010

One in five adults in the U.S. had a mental illness in 2010, with people ages 18 to 25 having the highest rates, according to a national survey.

Medicine & Health / Psychology & Psychiatry

created Jan 20, 2012 | popularity 5 / 5 (3) | comments 0

Revamping HIV-prevention programs in the Caribbean

While global attention to HIV/AIDS remains strong, a lack of focus on prevention strategies is stonewalling health experts in many developing nations, specifically in the Caribbean.

Medicine & Health / HIV & AIDS

created Jan 19, 2012 | popularity not rated yet | comments 0

Island

An island (pronounced /ˈaɪlənd/) or isle (/ˈaɪl/) is any piece of land that is surrounded by water. Very small islands such as emergent land features on atolls are called islets. A key or cay is another name for a small island or islet. An island in a river or lake may be called an eyot, /ˈaɪ.ət/. There are two main types of islands: continental islands and oceanic islands. There are also artificial islands. A grouping of geographically and/or geologically related islands is called an archipelago.

The word island comes from Old English ī(e)gland (literally, "watery land"). However, the spelling of the word was modified in the 15th century by association with the etymologically unrelated Old French loanword isle.

There is no standard of size which distinguishes islands from islets and continents.

When defining islands as pieces of land that are surrounded by water, narrow bodies of water like rivers and canals are often, but not always, left out of consideration[citation needed]. For instance, in France the Canal du Midi connects the Garonne river to the Mediterranean Sea, thereby completing a continuous water connection from the Atlantic Ocean to the Mediterranean Sea. So technically, the land mass that includes the Iberian Peninsula and the part of France that is south of the Garonne River and the Canal du Midi is surrounded by water. For a completely natural example, the Orinoco River splits into two branches near Tamatama, in Amazonas state, Venezuela. The southern branch flows south and joins the Rio Negro, and then the Amazon. Thus, all of the Guianas (Guyana, Suriname, and French Guiana) and substantial parts of Brazil and Venezuela are surrounded by (river or ocean) water. These instances are not generally considered islands. However, small pieces of land bordered by rivers are considered islands.

This also helps explain why Africa-Eurasia can be seen as one continuous landmass (and thus technically the biggest island): generally the Suez Canal is not seen as something that divides the land mass in two. The mainland of Australia is often considered the largest island because it is covered on all sides by water while not being connected to another body of land.

On the other hand, an island may still be described as such despite the presence of a land bridge, e.g., Singapore and its causeway or the various Dutch delta Islands, such as IJsselmonde. Some places may even retain "island" in their names after being connected to a larger landmass by a wide land bridge, such as Coney Island. The retaining of the island description may therefore be to some degree simply due to historical reasons - though the land bridges are often of a different geological nature (for example sand instead of stone), and thus the islands remain islands in a more scientific sense as well.

For more information about Island, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.