Impact of Global Ice Melt

What percentage of the world's freshwater ice is located in Greenland and Antarctica?

• 100%

• 75%

• 50%

• 99%

If a massive global melt occurred overnight, by how much would sea levels rise?

• 10 meters

• 66 meters

• 100 meters

• 200 meters

What would happen to the Gulf Stream if a large amount of freshwater entered the ocean?

• It would change direction

• It could weaken or stop

• It would remain unchanged

• It would become stronger

What toxic chemical is released from thawing Himalayan glaciers?

• DDT

• Mercury

• Lead

• Arsenic

What is permafrost primarily composed of?

• Organic matter

• Rock

• Sand

• Ice

What greenhouse gases are released by microorganisms digesting organic matter in permafrost?

• Sulfur dioxide and ozone

• Oxygen and nitrogen

• Hydrogen and helium

• Carbon dioxide and methane

By how much could global temperatures rise due to increased greenhouse gases from thawing permafrost?

• 3.5 degrees Celsius

• 2 degrees Celsius

• 1 degree Celsius

• 5 degrees Celsius

What environmental changes could result from a 3.5-degree Celsius temperature rise?

• Increased snowfall

• Mass droughts and desert-like climates

• More stable weather patterns

• Decreased sea levels

Where might people migrate to if coastal areas become uninhabitable?

• The Amazon Rainforest

• The Sahara Desert

• Canada, Alaska, and the Arctic

• The Australian Outback

What is the potential consequence of a 1-degree Celsius increase in global temperatures?

• Reversible climate change effects

• Irreversible climate change effects

• No change in climate

• Immediate ice age