already experience increased frequencies of inundation, loss of coastline and agricultural land. Inhabitants of these islands will most likely become the first people to loose not only their livelihood and culture, but also their land and in some cases even their country. With Island Nations disappearing, our global society has to come together to develop mechanisms to accept displaced ...
with the chance of visibility increasing with proximity to the North Magnetic Pole(Earth's is currently in the arctic islands of northern Canada).Auroras seen near the North pole may be high overhead, but from further away, they illuminate the northern horizon as a greenish glow or sometimes a faint red, as if the sun were rising from an nusual direction. Its southern counterpart, the aurora ...
or spreads from its source. Older and more weathered than their surroundings, kipukas often appear to be like islands within a sea of lava flows. They are often covered with soil and late ecological successional vegetation that provide visual contrast as well as habitat for animals in an otherwise inhospitable environment.-위키피디아‘Kipuka’(마) 하와이는 지질학적으로 ...
보이기도 한다.남미 대륙에서 약 1천㎞ 떨어진 태평양의 고도 갈라파고스 군도(Galapagos Islands)는 아마도 지구상에 남아 있는 유일한 파충류의 천국일 것이다. 4세기 전 인간이 닿기 훨씬 전에 이곳을 점령한 파충류들은 마치 2억년 전 지구를 지배하던 공룡들처럼 이 섬을 지배해왔다.19세기 초에 ...
near the boundary of mantle and core, mantle material rises up like a plume to break through the crust as volcanoes. Islands like the Hawaiian chain are thought to be formed as the tectonic plates of the crust move over mantle hot spots. Geologist Roger Larson has hypothesized that a "super-plume" erupted from the mantle 120 million years ago and caused not only crust formation but a temporary ...
creating a series of volcanoes, the older ones of which, having passed beyond the hot spot, are extinct.The Hawaiian islands have been formed over one of these hot spots, and the volcano on the island of Hawaii itself, the most recently formed of the group, is still active. Could a miniblack hole buried in the mantle serve as the source of a hot spot? Even a tiny miniblack hole with a mass of ...
last dodo was dead, and a really magnificent and unusual organism was forever gone. The related species on neighboring islands were also wiped out within a few decades after that.Now the dodo exists only in the common phrase "dead as a dodo." The word is also used to signify any person who is hopelessly behind the times, and who finds refuge in blind conservatism. (Poor dodo! To be remembered ...
In New Zealand there also lives the kakapo, a large, flightless, nocturnal parrot that once was widespread in the islands but has now been driven nearly to extinction. The bird only breeds once in four years and only when the food supply is good, so it is hard to keep it going. Only 43 birds are left, 14 of them female. Some years ago, 22 kakapos were carried off to a small offshore island ...
exerts a moderating influence on the land's temperature so that the "oceanic climate" of coastal areas and of islands tends to be milder than it would otherwise be.On the other hand, land that is far from the ocean does not have a chance to have its temperature moderated. It gets good and hot in the summer, and good and cold in the winter. Such regions experience a "continental climate. ...
"San Salvador"(meaning "Holy Savior") took possession of it in the name of Spain, and then went on to discover other islands and make other voyages.Columbus became a greet American hero eventually, and we celebrate Columbus Day every Oct. 12(or the nearest Monday to it so as to make it a threeday weekend). On Oct. 12, 1992, we will celebrate the 500th anniversary of his landing on Guanahani ...