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8.11A Natural Events and Climate Change

Last updated about 6 hours ago

13 questions

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Question 1

1.

Scientists use ___ to estimate the impact of climate change.

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Question 2

2.

It's important for city planners to understand climate change so they can make informed decisions. Droughts, flash flooding, landslides, hurricanes, and wild fires are considered symptoms of ___ change.

Volcanoes can affect climate article

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Question 3

3.

Volcanic eruptions can block out the sun causing a sudden ___ in temperature in the surrounding area.

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Question 4

4.

Volcanic eruptions can increase the amount of carbon dioxide in the air. Carbon dioxide is a greenhouse gas that can trap heat and over time contribute to global ___.

Meteor Impact Website

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Question 5

5.

The dust and aerosols released into the atmosphere by a meteorite impact can block sunlight, causing a rapid ___ in global temperatures. This is similar to the effect of a nuclear winter. A meteor impact can cause tsunamis and landslides that alter the landscape and disrupt ecosystems.

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Question 6

6.

The combination of water vapor and sulfurous materials released into the atmosphere by a meteorite impact can create sulfuric acid, which falls as acid rain. The melting of rocks at the impact site releases carbon dioxide into the atmosphere, which can cause greenhouse gases that result in global ___.

Ocean currents article

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Question 7

7.

Abrupt changes in ocean currents in the ocean currents causes an increase in tropical storms such as cyclones, typhoons, and ___.

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Question 8

8.

Ocean _ serve to distribute hot and cold temperatures evenly. An increase in global temperature can change the salinity (salt content) of the ocean and its' temperature patterns. Melting of glaciers can cause a sudden influx of freshwater, which changes the saline content and disrupts deep ocean currents. When ocean __ are disrupted it can result in colder winters, warmer summers, and precipitation changes that can cause droughts and flooding.

Climate change indicators EPA website

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Question 9

9.

Greenhouse gases like carbon dioxide, methane, nitrous oxide, and water vapor trap heat by absorbing infrared radiation from the sun and prevent the heat from escaping into space. Some green house gases occur naturally. Human interference has greatly increased the release and absorption of greenhouse gases into our atmosphere. The increase of greenhouse gases has caused colder areas to ___ up.

Climate time machine interactive

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Question 10

10.

Sea Ice: This visualization shows the annual Arctic sea ice minimum since 1979. At the end of each summer, the sea ice cover reaches its minimum extent, leaving what is called the perennial ice cover. The area of the perennial ice has been steadily ___ since the satellite record began in 1979.

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Question 11

11.

Sea Level: Recent satellite observations have detected that the Greenland and Antarctic ice sheets are losing ice. Even a partial loss of these ice sheets would cause a 1-meter (3-foot) rise. If lost completely, both ice sheets contain enough water to raise sea level by 66 meters (217 feet).
This visualization shows the effect on coastal regions for each meter of sea level rise, up to 6 meters (19.7 feet). Land that would be covered in water is shaded ___.

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Question 12

12.

Carbon dioxide, global temperature, ocean warming: What change did you observe over the last 50-100 years?

Question 13

13.

Ice Sheets: Satellite observations show that the polar ice sheets shed a combined 418 billion metric tons of ice per year between 2002 and 2023, contributing the most to global sea level rise. The leading cause of this melt is the human ___ of fossil fuels.