GPN 32 Methane Timebomb

What is methane's role in climate change?

• It's not a greenhouse gas

• It's a stronger greenhouse gas than carbon dioxide

• It's a weaker greenhouse gas than carbon dioxide

Methane has _____ times the greenhouse effect of CO2

• 10

• 50

• 80

• 100

Word meaning 'triggered by humans'

Hint: A

What % of methane release is thought to be anthropogenic?

• 20

• 40

• 60

• 80

What is the effect of melting Arctic ice on the sea?

• It exposes a dark blue sea with a HIGHER albedo

• It exposes a dark blue sea with LOWER albedo

Methane emissions from rice production account for _____ of anthropogenic methane release.

• 5%

• 8%

• 18%

• 15%

Which type of feedback loop is triggered by the methane timebomb?

• Positive

• Negative

Type of animal with more than one stomach

(Hint: R)

Term for a crisis moment, after which we cannot reverse a positive feedback loop

(Hint: T P)

Fill in the blank: Methane bubbles in the ice are adding to the _____ effect.

• Cooling

• Heating

• Neutral

• Freezing