El estado de la capa de hielo de Groenlandia

NASA scientists have been studying the effects of global warming on Greenland's ice for over a decade. Using satellites and lasers, they measure ice thickness and movement. They discovered that 100 billion tons of ice melt annually, and the Peterman Glacier's speed has doubled in five years. This rapid melting is attributed to global warming, which causes meltwater to lubricate the ice, accelerating its movement. Similar changes are observed in Alaska and Antarctica, posing a threat to sea levels and habitats. If the melting continues, the consequences could be catastrophic.

How do NASA scientists measure changes in Greenland's ice sheet?

• By collecting ice samples manually

• Through satellite and laser technology

• By using ground-based sensors

• Using drones to capture images

What is the annual ice loss in Greenland?

• 150,000 million tons

• 100,000 million tons

• 50,000 million tons

• 200,000 million tons

What significant change has been observed in the Peterman Glacier?

• It has decreased in size

• It has become more stable

• Its speed has doubled

• It has stopped moving

What role does meltwater play in the movement of Greenland's ice sheet?

• It acts as a barrier

• It acts as a lubricant

• It freezes the ice

• It slows down the ice

Which regions besides Greenland are experiencing similar ice melt issues?

• The Himalayas and Andes

• Alaska and Antarctica

• The Arctic and Sahara

• The Alps and Rockies