Climate Change and Its Impacts

The video tutorial explores the evidence of Earth's warming and the role of human actions in climate change. It explains temperature anomalies and their significance, discusses scientific consensus versus public opinion, and analyzes historical temperature trends. The impact of climate change on Earth's systems, including snow, ice, and oceans, is examined, along with future climate predictions.

What is a temperature anomaly?

• A sudden increase in temperature

• The difference between measured temperature and a long-term average

• A temperature reading taken at the equator

• A measure of humidity in the atmosphere

What percentage of scientific papers attribute climate change to human activity?

• 97%

• 50%

• 41%

• 75%

How much has the concentration of CO2 increased since the industrial revolution?

• 60%

• 40%

• 25%

• 10%

What is the primary evidence of global warming in the last millennium?

• Decreased solar activity

• Unmatched recent temperature rise

• Increased volcanic activity

• Increased rainfall

What is the main cause of rising sea levels?

• Melting glaciers

• Thermal expansion of ocean waters

• Increased rainfall

• Tectonic activity

Which region experienced below-average temperatures in 2013?

• Europe

• North America

• Australia

• Asia

What has been the trend in snow cover since the late '80s?

• More years with above-average snow cover

• No change in snow cover

• Twice as many years with below-average snow cover

• Consistent snow cover each year

What is the main reason people struggle to decide on global warming?

• Political influence

• Lack of scientific evidence

• Economic factors

• Influence of short-term weather phenomena

What is the significance of the Northwest Passage becoming passable?

• It indicates a decrease in global temperatures

• It shows a decline in sea ice due to warming

• It suggests an increase in global snowfall

• It marks a rise in ocean salinity

What is the expected future trend for global temperatures and sea levels?

• Decrease in both

• Increase in temperatures, decrease in sea levels

• Increase in both

• No change in either