3.4 - Thermokast

Question 1

Warmer Oceans Lead To

Answer 1

Lower atmospheric pressure, smaller temp gradient between poles, less instability, weaker winds and less precipitation.

Question 2

Higher Temperatures…

Answer 2

Increased evaporation, more precipitation at ITCZ (equator) and Poles.

Question 3

Influence Of Climate Change In Arctic

Answer 3

Arctic ponds dry up
Increased thawing
More run-off
More local river flooding

Question 4

Influence On Carbon Cycle

Answer 4

CH4 from wetlands/permafrost is released, and trapped CO2 released in forest fires.

Question 5

CH4

Answer 5

Methane

Question 6

Implication Of Climate Change On People

Answer 6

Building and structural collapse, Stress on wildlife, Alaskane have to relocate, More avalanches.

Question 7

Changes With Height And Time

Answer 7

High latitudes have warmed more than twice as fast as the global average. Thawing and degradation of permafrost and hydrological shifts that include earlier snowmelt and higher river discharge.

Question 8

Batagaika Crater

Answer 8

In Arctic Russia, growing 33ft a year, melting was helped by deforestation, sun warming soil, ice melts and removal of tree canopy as shade. The top layer slumps down damaging pipelines, cracking pavements and swallowing infrastructure. High chance of methane release.

Question 9

What’s Happening To Arctic Craters?

Answer 9

Craters form in the upper layer of the permafrost, which melts and becomes unstable.
Methane gets released into unfrozen areas
As pressure builds up crates fill with water