Erosion of Ozone Layer and Global Warming: The Global Warming Phenomenon

The video discusses global warming, focusing on the South Cascade Glacier in Washington, which has significantly retreated over the last century. It highlights the global trend of shrinking glaciers and the scientific consensus on climate warming, despite debates on the role of carbon dioxide. Researchers use computer models to predict potential impacts of continued warming, such as flooding and ecosystem damage. The video compares CO2 emissions from natural events like the Mount Saint Helens eruption to human activities, emphasizing the larger impact of fossil fuel burning.

What significant change has occurred to the South Cascade Glacier over the last century?

• It has advanced by 1.2 miles.

• It has doubled in size.

• It has retreated by 1.2 miles.

• It has remained the same.

What is the general consensus among scientists regarding the Earth's climate?

• The climate is becoming warmer.

• The climate is stable.

• The climate is unpredictable.

• The climate is cooling.

What do computer models predict if the current warming trend continues?

• A stable climate with no changes.

• An increase in polar ice caps.

• A decrease in global temperatures.

• Widespread flooding and ecosystem devastation.

How much carbon dioxide did the 1980 eruption of Mount Saint Helens release?

• 10 million tons

• 5 million tons

• 20 million tons

• 1 million tons

How does the annual human contribution of CO2 compare to the Mount Saint Helens eruption?

• Humans release more CO2 annually.

• Humans do not contribute to CO2 emissions.

• Humans release less CO2 annually.

• Humans release about the same amount of CO2 annually.