Energy, Materials and the carbon budget Flashcards

1
Q

1 kg carbon (c) =

A

3.667 kg carbon dioxide (CO2)

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2
Q

GtC

A

Gigatonne carbon

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3
Q

Two main sources for emission

A
  • Fossil Fuels

- Cement production

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4
Q

Fossil emission is

A

direct emissions that come from burning fossil fuels.

You get CO2 and H2O as end products

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5
Q

Cement emissions come

A

from the making of clinker. It is therefore a process emission.

CaCO3 -> CO2 + CaO

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6
Q

Since the total emissions have been increasing

A

we can state that the attention to climate change is totally disconnected from actual emissions (increase).

(There has not been extra attention now that our emissions are much higher than before.)

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7
Q

Third source of emissions

A

Land use change

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8
Q

Emissions from land use change

A

are real emissions and not the changing of the sinks

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9
Q

Main emissions from land use change

A

come from deforestation

Slash and burn?

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10
Q

The 4 largest sources of emissions

A

1) Coal
2) Oil
3) Gas
4) Cement

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11
Q

How large is the share of coal emissions in 2012

A

43%

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12
Q

Which energy wasting method is the source of 1% of all emissions

A

Flaring

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13
Q

Cement only has a … share in 2012 global emissions

A

5%

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14
Q

The biggest source of emission growth between 2011 and 2012

A

is coal, with 54%

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15
Q

The largest increase in the use of coal is in

A

China and India

There was a decrease in the US

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16
Q

The top 4 emitters in 2012 covered … of global emissions

A

58%

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17
Q

The 4 countries that are the largest emitters

A

1) China
2) USA
3) EU28
4) India

18
Q

The emission growth rate of .. and .. are highest with

A

China and India

with 5.9% and 7.7% respectively

19
Q

Renewable energy investment

A

is an investment in hardware (so actual wind turbines and pv panels) not production

20
Q

The three largest countries with renewable energy investment

A

1) China
2) EU
3) USA

21
Q

There are more investments in … than in …

A

Renewable energy than in Energy Efficiency

22
Q

Annex B countries

A

A list of countries that signed the Kyoto protocol

23
Q

Bunkers

A

emissions that were hared to include in the Kyoto protocol because of their not fixed geography.
International flights and shipping.

24
Q

Emissions from annex B countries has ……

A

slightly declined

25
Q

Emissions from non-Annex B countries

A

have increased rapidly in the recent years

26
Q

China has the largest share of emissions because

A

It is a producer country. They produce products for the rest of the world. Their emissions are therefore partly the responsibility of the rest of the world

27
Q

Because the Kyoto protocol was in the context of 1990 emissions

A

it is less relevant since the distribution of emission is now very different.
The Non-Annex B emissions now far exceed the Annex B emissions.

28
Q

Putting emissions in perspective

A

Looking at the different context.

  • Cumulative
  • Production
  • Consumption
  • per GDP
  • Population
29
Q

consumption-based emissions

A

Allocate emissions to “where are the products and services consumed”

30
Q

The remaining carbon budget

A

the number is constantly changing. For the 2 degree scenario the limit went up from 355 ppm to 400-450 ppm

31
Q

The current emission are on track

A

of the 3.2-5.4 degree scenario. Large mitigation measures will be needed to get on the 2 degree.

32
Q

Three main emission sinks

A

1) Atmosphere
2) Land
3) Ocean

33
Q

Effectivity of sinks

A

The effectiveness of the sinks are influenced by the antropogenic emissions.
Furthermore, the high amount of antropogenic emissions are making land and ocean less effective sinks.

34
Q

The largest part of new emissions

A

ends up in the atmosphere. Even the growing capacity of the ocean and land sinks cannot compensate

35
Q

Atomic weight of C

A

12

36
Q

Atomic weight of O

A

16

37
Q

CO2 equivalent

A

allows to sum all greenhouse gas (GHG)

emissions

38
Q

GWP

A

Global warming potential. Expressing the strength of other greenhouse gasses to CO2.

(Methane is 21 times as strong as CO2)

39
Q

1 toe

A

41.868 GJ

40
Q

1 kWh

A

3.6 MJ