Introduction

Chapter 1. Global Warming Update (2010)

Global Warming Update (2010)

Video Case Study
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You must read each slide, and complete any questions on the slide, in sequence.

Synopsis

NASA is using gravity to study climate change in the Antarctic ice sheets. Using gravity, NASA found that these ice sheets are decreasing in mass, which is leading to rising sea levels and climate change as a result of increased heat absorption from the Sun.

Source: National Geographic

Length: 2:33

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Instructions

Watch the video and answer the following questions:

Credit: National Geographic Creative

1.

NASA scientists are using _____________ to study whether Antarctic sheets are growing, melting, or staying the same size.

A.
B.
C.
D.
E.

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2.

Changes in Antarctica's mass produces changes in Earth's gravitational field.

A.
B.

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3.

Antarctica is losing 152 cubic kilometers of water per year. This is equivalent to the amount of water the United States uses in:

A.
B.
C.
D.
E.

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4.

Melting ice could have a profound effect on the planet by:

A.
B.
C.
D.

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5.

Fifty percent of the world's freshwater is located in glaciers and ice caps.

A.
B.

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6.

As the reflective ice melts, what happens to the Sun's energy as it strikes the darker oceans?

A.
B.
C.
D.

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