Wrap up warm, gang, and join us here at NG Kids as we check out ten brrr-illiant facts about glaciers!
1) Glaciers are huge masses of ice that 'flow' like very slow rivers. They form over hundreds of years where fallen snow compresses and turns into ice.
2) Glaciers form the largest reservoir of fresh water on the planet. In fact, they store 75% of the world's fresh water!
3) Today, glaciers cover around 10% of the Earth's total land area. During the last ice age they covered 32%. Brrrr!
4) Glaciers are usually divided into two groups - Alpine glaciers, which form on mountainsides and move downward through valleys, and Continental ice sheets, which spread out and cover larger areas.
5) The world's largest glacier is Lambert Glacier, located in Antarctica, measuring approximately 100km wide, 400km long and 2.5km deep!
6) Because glacial ice is so dense and compact, it often appears a bright blue!
7) The Kutiah Glacier in Pakistan has the record for the fastest glacier surge. In 1953, it moved more than 12km in three months.
8) Earth's two ice sheets cover most of Greenland and Antarctica and make up more than 99% of the world’s glacial ice.
9) If the Antarctic ice sheet were to melt entirely, it is estimated that sea levels would rise by around 65m. That means that London would be lost underwater!
10) Glacial ice can be hundreds of thousands of years old, which makes it a valuable resource for assessing climate change. By extracting and analysing the ice, scientists can learn about what the climate was like on Earth thousands of years ago!