NASA Mission Maps 16 Years of Ice Loss

Scientists have measured changes in ice sheet elevations in Greenland and Antarctica over 16 years. The East Antarctic ice sheet is growing, but this is offset by rapid thinning of the West Antarctic ice sheet due to warmer ocean temperatures. Greenland shows increased mass in the center but overall thinning around the edges, contributing to sea level rise. Combined, these changes have raised sea levels by 14 millimeters over 16 years. Projections suggest a rise of 2-4 feet by the century's end, posing risks to coastal infrastructure. Understanding these mechanisms is crucial for future climate projections.

What significant changes have been observed in the East Antarctic ice sheet over the past 16 years?

How does the West Antarctic ice sheet respond to warmer ocean temperatures?

What is the overall trend in the mass of the Greenland ice sheet, and what factors contribute to this trend?

Discuss the implications of a potential sea level rise of 2-4 feet by the end of the century.

What are the critical motivations for studying the mechanics driving changes in ice sheets?