ELSS Key Figures Flashcards

(43 cards)

1
Q

How much run off speeds increase by (AT)

A

x27

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2
Q

Depth active layer increases

A

7 metres / 26 years

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3
Q

Annual average rain ARF

A

> 2000mm

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4
Q

Average Annual rain AT

A

137mm

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5
Q

Average temp. range ARF

A

2 degrees

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6
Q

Average temp. range AT

A

33 degrees

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7
Q

Average temp ARF

A

27.7 degrees

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8
Q

Average temp AT

A

-12 degrees

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9
Q

Amount of Amazon deforested

A

1/5 since 1970s

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10
Q

Warming rate of the Arctic

A

Twice global average, roughly 2.7 degrees since 70s

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11
Q

Amount of ARF now a source

A

20%

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12
Q

Amount of carbon stored in permafrost

A

1600GT

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13
Q

Helsinki Rules

A

1966 - “Equitable share” of drainage basin

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14
Q

Berlin Rules

A

2004 - “equitable share” as well as environmental protection and human rights to water

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15
Q

Zero tillage

A

No ploughing - reduces carbon lost via oxidation, reduces run off & overland flow by compacted soils

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16
Q

Mulching

A

Leaving old matter in soil - increased soil fertility = higher growth and yield - more organic matter in soil = more porous = better infiltration capacity = less flooding

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17
Q

Domestic ways to reduce water

A

More efficient appliances (eco settings on washers)

Limiting daily usage (turning tap off whilst brushing teeth)

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18
Q

Ways to conserve water in industry

A

Reusing recycled wastewater

19
Q

Ways to conserve water in agriculture

A

Drip irrigation
Reusing recycled waste water
Rainwater collecters

20
Q

Amount of water coming from groundwater - North

21
Q

Amount of water coming from groundwater - South

22
Q

Amount of water coming from groundwater- Israel

23
Q

Amount of carbon in Peak District

A

20 million GT

24
Q

Equivalence to peat bog restoration (Peak)

A

Planting 15,000 broad leaved trees annually

25
Amount of PD peat bog restored
23 km^2
26
Area Ramsar covers
208 million hectares, almost size of Mexico
27
How much Aral Sea shrank by
70% (surface area) | almost 80% volume
28
Countries in Aral Sea Drainage Basin
Kazakhstan, Uzbekistan, Turkmenistan, Tajikistan
29
Global warming tipping point
2 degrees
30
Amount suffering/could suffer water shortages
Currently 1 billion | Up to 2 billion by 2025
31
Amount of freshwater used by agriculture
at least 90%
32
Freshwater distribution
Less than 10% of countries possess 60% of worlds freshwater
33
Amount of GGE coming from agriculture
up to one third of global emissions
34
Methane released from paddy fields
50-100 million tonnes/year
35
Methane released by intensive farming
100 million tonnes/year
36
Remote sensing: OCO 3
NASA - determines atmospheric carbon dioxide concentrations using spectrum
37
Remote sensing:ICE SAT 2
American Space Agency - measures sea ice thickness using light particles sent in pulses
38
Amount of sea ice lost since 1980s in far north
2/3 of its volume
39
Carbon Capture and Storage (CCS)
carbon dioxide captured from industry - compressed into liquid - transported via subsea platform to offshore platform (eg Goldeneye off Aberdeenshire Coast) - injected into storage in porous rock below impermeable cap rock
40
Pros of CCS
Goldeneye: could capture 1 million tonnes carbon dioxide per year, provide clean electricity to over 500,000 homes; good UK potential; reduce power station emissions by 80-90%
41
Cons of CCS
Expensive to research/install, controversial over burying and safety, should invest in renewables
42
Changes in atmospheric carbon store
``` 1750 - just under 280ppm 1850 - 280ppm 1950s - 310ppm 2013 - exceeded 400ppm • Increased 130ppm since 1970s, average temp increase 0.85 degrees since 1880s ```
43
Anthropogenic carbon emissions
10 billion tonnes released annually Fossil fuels = 3/4 of global energy consumption 1750-2012: 69% emissions from fossil fuels, 30% from land use - 44% stored in atmosphere, 30% in oceans, 26% land