TEXTO:
Arctic warmest in two millennia
Temperatures in the Arctic are now the highest
they’ve been for 2,000 years, according to scientists.
Researchers in the United States say that it is one of
the clearest signs yet that human activity is warming
[5] the planet.
Scientists have produced evidence showing
dramatically that the current temperature rise there is
highly unusual. For most of the last two thousand years,
the Arctic slowly cooled, a consequence of variations in
[10] the Earth’s orbit.
But over the last century, the cooling abruptly
reversed, and the region is now warmer than at any time
in the 2,000 year record. Writing in the journal Science,
the researchers say this shows how quickly the Arctic
[15] responds to climatic changes.
BLACK, Richard. Arctic warmest in two millennia. Disponível em: www.bbc.co.uk/worldservice/learningenglish/language/ wordsinthenews/2009/09/090904witnarctic.shtml. Acesso em: 10 jun. 2010.
This text says that temperatures in the Arctic have
