Origin of The Arctic Climate
It is possible that this is the first time in the Earth's history that both poles have been simultaneously ice-bound. This unusual climate was created in the Azolla event when fresh surface water in the Arctic Ocean caused a long term abundance of Azolla, a type of aquatic fern. Huge quantities of dead Azolla built up and formed sedimentary rock, much of which contains fossil fuels as a result of the carbon contained in the Azolla. This process caused global cooling as a result of a reduction in the greenhouse effect. Release of stored carbon into the atmosphere as a result of current fossil fuel use is thought by most of the climate scientists to be causing global warming, which threatens to destroy the climatic conditions necessary for the current Arctic climate.It should be noted, however, that Earth is a dynamic system, wherein global warming and cooling occurs periodically based on multiple interacting stimuli.
Read more about this topic: Climate Of The Arctic
Famous quotes containing the words origin of, origin, arctic and/or climate:
“For, though the origin of most of our words is forgotten, each word was at first a stroke of genius, and obtained currency, because for the moment it symbolized the world to the first speaker and to the hearer. The etymologist finds the deadest word to have been once a brilliant picture.”
—Ralph Waldo Emerson (1803–1882)
“There are certain books in the world which every searcher for truth must know: the Bible, the Critique of Pure Reason, the Origin of Species, and Karl Marx’s Capital.”
—W.E.B. (William Edward Burghardt)
“Does the first wild-goose care
whether the others follow or not?
I don’t think so he is so happy to be off
he knows where he is going
so we must be drawn or we must fly,
like the snow-geese of the Arctic circle.”
—Hilda Doolittle (1886–1961)
“A positive learning climate in a school for young children is a composite of many things. It is an attitude that respects children. It is a place where children receive guidance and encouragement from the responsible adults around them. It is an environment where children can experiment and try out new ideas without fear of failure. It is an atmosphere that builds children’s self-confidence so they dare to take risks. It is an environment that nurtures a love of learning.”
—Carol B. Hillman (20th century)