Ocean Acidification and Methane Release

Question 1

Where will most carbon dioxide in the atmosphere be absorbed and what does it form?

Answer 1

In the ocean, carbonic acid, HCO3-

Question 2

How much lower will the pH of the ocean be by the end of the century?

Answer 2

0.3-0.4 units lower or 100-150% lower

Question 3

Are short term or long term changes more noticeable?

Answer 3

Short term (decades to a few thousand years) cause rapid changes in pH. Long term (10000 years) is not noticeable due to weathering.

Question 4

What are gas hydrates?

Answer 4

Ice-like crystalline solids formed from a mixture of water and natural gas, typically methane

Question 5

How much methane is trapped in oceanic hydrate deposits?

Answer 5

3k, 10k, or 74k gigatons

Question 6

How does climate change affect gas hydrates?

Answer 6

Increasing temperatures could change the gas hydrates stability zone, and cause methane release into the ocean and atmosphere

Question 7

How long have terrestrial and shallow offshore arctic regions undergone rapid climate change?

Answer 7

At least 10,000 years

Question 8

Ebulition

Answer 8

When the gas bubbles out of the water