Ca raspuns la un comentariu, care ma indeamna la documentare, apartinand unei cititoare, numita Jen, la adresa articolului Al Gore, vrajitorul de langa Oz si prietenii sai comunisti din Oz, public, in engleza, un articol despre parerile unor oameni de stiinta despre Groenlanda - Greenland. Daca Groenlanda nu era toata verde acum 1000 de ani, tot a fost odata verde acum 450.000 - 800.000 de ani. Asta nu pot sa o nege. Deci, tot a fost mai cald ca acum. Poate ti se pare logic ce spun, dar nu sunt sigur... Ideea e ca toate charturile astora spun ca n-a fost niciodata mai cald ca acum, eroare! Iar, culmea, o portiune de gheata a trecut cu succes de incalzirea globala de acum aproximativ 130.000 de ani, cand era mai cald cu 5 grade. S-ar putea totusi sa supraveituim! Aleluia! Tot ei ne spun ca, din pacate, nu mai pot manca cacat ca se topeste Groenlanda si ne inecam, dar sugereaza ca valul poate veni din Antarctica, acolo fiind o gheata mai sensibila se pare... Cand au ajuns vikingii Groenlanda, expertii stiu sigur ca era doar o mica zona very green. Dar nu i-au spus Littleverygreenspot. Ca sa atraga turisti sau noi vecini, baietii au numit locul Greenland. Niste adevarati experti in publicitate imobiliara vikingii astia, dati dracu', zau! Bun, atunci, in acea perioada, era la fel de cald ca acum - Some parts of Greenland, especially the parts the Norse settled, really are green, as these pictures from the tourist board attest (www.greenland-guide.dk/outdoor_life_photo.htm), la fel de cald din cauza poluarii cauzate de fasole, banuiesc, si nu s-a mai intamplat nimic. Nu erau niste baieti care sa sperie populatia cu TV-u', iar daca era TV, tot nu-i prosteau in halul asta, ca poate puneau aia mana pe topoare. Eu spun, totusi, sa va tineti frigiderele in priza, nu cumva sa cauzati vreo catastrofa planetara. Linkul catre articol este si in postarea la adresa careia am primit indicatii pretioase. Jen, putina documentare nu strica niciodata.
Ideal ar fi, intr-adevar, sa oprim nenorocita de poluare, dar de aici pana la a ne incarca tot pe noi cu taxe si a ne teroriza ca o sa murim ca-i prea cald, sau ca o sa racim daca avem vreo mica gospodarie cu oratanii, ca trebuie sa trecem toti pe iarba ca sa nu mai poluam, ca exista teroristi care au dat jos Gemenii, e un drum lung.
Greenland really was green, world's oldest DNA reveals
THE oldest DNA found on earth has been collected from under a kilometre of ice in Greenland, revealing that the frozen island really was once green.
Half a million years ago Greenland was covered by lush forests filled with butterflies, moths and the ancestors of beetles, flies and spiders. The finding has implications for global warming, suggesting the Greenland ice sheet, which holds enough water to raise sea levels by seven metres, might not melt as quickly as thought.
A Danish-led team, including the Australian researcher Michael Bunce, extracted the ancient DNA from the muddy bottoms of cores drilled deep into the ice cap in southern Greenland. The researchers identified genetic traces of a surprising variety of tree species, including spruce, pine and yew. The team believes the DNA is between 450,000 and 800,000 years old, based on their analysis of insect genetic material.
Dr Bunce, of Murdoch University, said it was a fascinating new way to study the past. "Preserved DNA from plants, animals, insects and bacteria that died hundreds of thousands of years ago can aid in our understanding of how the earth's environment has changed," he said.
Researcher Eske Willerslev said: "We have shown for the first time that southern Greenland, which is currently hidden under more than two kilometres of ice, was once very different to the Greenland [of] today."
The discovery of ancient DNA from a warm period half a million years ago suggests that ice on top of the ancient forest did not melt as believed during the last warm period, 116,000 to 130,000 years ago, when temperatures were 5 degrees higher than today. If it had, the remains of the ancient trees and insects would have been replaced by new flora and fauna.
"If our data is correct, this means that the southern Greenland ice cap is more stable than previously thought," said Professor Willerslev, whose team's findings are published today in the journal Science.
This did not mean sea levels would rise more slowly than predicted, he warned. The five- to six-metre rises during the last warm period must have come from sources other than Greenland, such as Antarctica, he said. "As the earth warms from man-made climate change, these sources would still contribute to a rise in sea levels."
Erik the Red, who settled in Greenland 1000 years ago, named it to lure more settlers, although a small area not covered by ice would then have been very green.