Climate Change Review

Which of the following does NOT cause sea level rise?

• Glaciers melting

• Permafrost melting

• Sea ice melting

• Thermal expansion

Which major greenhouse gas is released when permafrost melts?

• Carbon dioxide

• Methane

• Water vapor

• Nitrous oxide

Which of the following has the highest albedo?

• Ice/snow

• Water/oceans

• Land

Which of the following are examples of complete positive feedback loops?

• Temperatures increase --> glaciers & sea ice melt --> albedo decreases --> heat absorption increases --> temperatures increase

• Temperatures increase --> evaporation increases --> cloud formation increases --> albedo increases --> heat absorption decreases --> temperatures decrease

• Temperatures increase --> permafrost melts --> greenhouse gases increase --> greenhouse effect increases --> temperatures increase

• Wildfires increase --> greenhouse gases increase --> greenhouse effect increases --> temperatures increase

Which of the following is an example of a complete negative feedback loop?

• Temperatures increase --> glaciers & sea ice melt --> albedo decreases --> heat absorption increases --> temperatures increase

• Temperatures increase --> evaporation increases --> cloud formation increases --> albedo increases --> heat absorption decreases --> temperatures decrease

• Temperatures increase --> permafrost melts --> greenhouse gases increase --> greenhouse effect increases --> temperatures increase

• Wildfires increase --> greenhouse gases increase --> greenhouse effect increases --> temperatures increase