Questão 23742
UEFS
A team of scientists has shown that the glaciers in one of Asia’s major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the world’s biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakoram’s glaciers had actually expanded by a small amount, while in the neighboring Himalayas they’d been shrinking. It’s unclear why this is happening, but it seems that by a quirk in the weather pattern that’s not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow.
Thickening glaciers. Disponível em: . Acesso em: 21 jul. 2012.
The phenomenon with the Karakoram
has already been totally clarified.
is similar to what takes place in the Himalayas.
is due to its receiving strong icy winds all year round.
seems to result from the range not getting as much heat as it used to.
is a consequence of the small amount of snow that falls in the area.
Gabarito:
seems to result from the range not getting as much heat as it used to.
Resolução: