Interesting Facts about Ice

Close to the North Pole, Arctic ice can be more than 9 m (30 ft) thick. Scientists used their ice-breaking ship to plow into the ice. Then they stopped their engines and let the ice refreeze around them.

Hiking and snowmobiling out onto the ice, the scientists took measurements, such as the temperatures of the water, air, and ice around them. These measurements will help scientists predict changes due to global warming (the slow increase of Earth's temperature, possibly due to types of air pollution).)

Ice around Earth's poles is an important on which study global warming. Why? First, melting ice maybe an early sign of warming. Second, scientists say that warmer poles could change climates around the world. Plants and animals are used to the climates they live in, so climate changes could kill them.

Source: Scholastic SuperScience