MGIS: Greenland (AOS_2) Flashcards
(8 cards)
1
Q
location of Greenland
A
- Greenland is located in the Northern Hemisphere, north east of Canada within the Arctic Circle, and found between 60 and 83 degrees latitude north of the Equator
- Word’s largest island and one of the two ice sheets in the world
- Autonomous Danish dependent territory
- Islands population is 57,000
- 82% is ice cap with a small strip of inhabitable land along shore line
2
Q
reasons for current land cover changes in Greenland
A
- Global warming increasing melting but had also increased access to Greenland’s mineral resources (good for economy and to become more autonomous) (Qaaqarsuaq has probably got 50% of the world’s rare earth in it)
- Surface melt: melting had reached higher elevations, the melting season (summer) is lasting longer and less snowfall has led to a net loss of surface ice
- Accelerated glacial flow: widespread mostly on the south east coast and associated with large retreats and thinning of the ice sheet
3
Q
good statistics for Greenland
A
- The full melting of Greenland’s ice sheet could increase sea levels by about 20 feet
- In June 2019 alone, Greenland’s ice sheet lost 80 billion tons of ice, according to the National Snow and Ice Data centre
- In July 2019, the ice sheet lost 160 billion tons of ice
- In an average year now, Greenland sheds about 250 billion tonnes of ice
- The 2019 ice loss was approx. 370 billion tonnes
- In July 2012, 97% of the ice sheet simultaneously melted
- Since 2003, Greenland’s melt rates have more than quadrupled
4
Q
spatial technology in Greenland
A
- NASA
○ Began in Spring, 2009
○ The IceBridge 2019 springtime flights use NASA Wallops Flight Facility’s P-3 Orion aircraft. The plane carries a comprehensive instrument suite: a high-resolution camera that generates georeferenced images of polar ice,
○ Using ice-penetrating radar data collected by IceBridge, scientists were able to build the first-ever age map of the layers inside the Greenland Ice Sheet which allowed scientist the study the history of Greenland’s ice layers
5
Q
local response to MGIS in Greenland
A
- Niaqornat is located on the north side of the Nuussuaq peninsula
- Trade is based on fishing
- The waters are full of cod, Greenland halibut and bowhead whale
- In 2011, Royal Greenland closed down the fish factory and trading facility in the settlement
- Since then, fishermen have sailed 100km to Uummannaq or other settlements to trade their catches
- In 2011, the inhabitants established KNT Aps, a private limited company that aims to maintain fish production in Niaqornat
- From the community’s perspective, maintaining trading and the fish factory and developing tourism are considered to be of vital importance to the survival of the settlement
6
Q
National response to MGIS in Greenland
A
- In 2011, the present government set a national greenhouse gas reduction of 40% reduction by 2020 compared to 1990 levels (endorsed by a majority in Parliament in 2014)
- The 40% reduction target goes beyond international and UE commitments, underlining Denmark’s leadership approach on climate change
- The government since the early 1990s have invested about 1% of Greenland’s GDP annually to expand hydropower production
- Hydroelectricity, in 2015, provided 70% of Greenland’s electricity
- roughly 725,000 tonne emissions in 2010, down to 520,000 in 2014
7
Q
What is the Paris Agreement?
A
- Signed 12 December 2015 at COP 21 (The 21st Conference of Parties) to govern climate change reduction measures from 2020
- The key result was an agreement to set a goal of limiting global warming to less than 2 degrees Celsius compared to pre-industrial level
- this agreement calls for zero net anthropogenic greenhouse gas emissions to be reached
- according to some scientist it will require zero emissions sometime between 2030 and 2050
8
Q
Is it effective?
A
- No detailed timeline or country-specific goals for emission were incorporated into the Paris Agreement
- It becomes fully effective only if the 55 countries that produce at least 55% of the world’s greenhouse gas emissions, ratify the Agreement
- More than 175 nations signed the agreement in April 2016 and each country is required to set a target for emission reduction, but the amount will be voluntary
- There is neither a mechanism to force a country to set a target by a specific date nor enforcement measures if a set target is not met
- At the current rate of global emissions we will exceed the 2 degrees C Paris target by 2030
- Glacier loss in the Arctic in the period from 2015 to 2019 was more than in any other five-year period on record