Climate Change Concepts and Impacts

The video discusses the rapid melting of glaciers in the Arctic, focusing on feedback loops that influence climate change. It explains the difference between negative and positive feedback loops, using the example of sea ice melting near Greenland. The concept of albedo and its impact on climate is explored, along with the role of greenhouse gases like CO2 and methane. The video highlights human activities' impact on climate change and the use of computer models to predict future changes. It encourages viewers to study Greenland's climate and consider the implications of ongoing changes.

What is a feedback loop in the context of climate change?

• A cycle of events that influence each other

• A one-time event with no further impact

• A process that only occurs in the Arctic

• A method to reduce greenhouse gases

How does a positive feedback loop affect climate change?

• It has no impact on climate change

• It reverses the direction of change

• It decreases the rate of change

• It amplifies the initial change

What happens to sea ice near Greenland as temperatures rise?

• It remains unchanged

• It melts, creating more open water

• It expands, covering more area

• It becomes thicker

What is the role of albedo in climate change?

• It reflects sunlight, affecting temperature

• It absorbs sunlight, reducing temperature

• It has no effect on climate

• It only affects land surfaces

Which of the following is a greenhouse gas?

• Oxygen

• Nitrogen

• Carbon dioxide

• Helium

How do greenhouse gases contribute to global warming?

• They have no effect on temperature

• They reflect heat back into space

• They cool the Earth's surface

• They trap heat in the atmosphere

What has been observed in the last century regarding temperature?

• A stabilization of temperature

• A significant increase in temperature

• No significant change in temperature

• A decrease in global temperatures

What is the main cause of the temperature anomaly observed in the last 50 years?

• Volcanic eruptions

• Changes in the Earth's orbit

• External forces including human activities

• Natural causes alone

What are scientists using to predict future climate changes?

• Historical weather patterns

• Astrological charts

• Computer models

• Animal migration patterns

What should individuals do to understand climate change better?

• Observe their environment and ask questions

• Ignore the changes

• Rely solely on news reports

• Wait for government reports