changes in the carbon cycle over time (human)

Question 1

what was the energy supply increase between 1971 and 2013? (fossil fuels)

Answer 1

150%

Question 2

how many pentagrams of carbon were used in the 90’s and 2000-2008?

Answer 2

1990’s - 4.6 pg

2000-2008 - 7.7 pg

Question 3

what is significant about developing countries?

Answer 3

their emissions double

Question 4

how much co2 is added to the atmosphere from deforestation in Brazil?

Answer 4

15% co2 added to atmosphere from deforestation

14% added from transportation

Question 5

how much of the worlds forest is cut down every year and given new land use (e.g. farming)?

Answer 5

13 million hectares

Question 6

what is brazil known for?

Answer 6

illegal logging and cattle farming

Question 7

how much of the world’s population live in cities?

Answer 7

50%

predicted 70% by 2050

Question 8

how much energy production do cities consume?

Answer 8

cities consume 80% of energy production worldwide and account for equal shares of global greenhouse gas emissions

Question 9

how much of an increase in co2 will be as a result of developing countries?

Answer 9

89% increase

Question 10

how much has co2 release grown by as a result of agriculture?

Answer 10

doubled over past 50 years

could increase by another 30% by 2050

Question 11

how much have outputs from crops/livestock grown in 10 years?

Answer 11

grew from 4.7 billion tonnes to 50 billion tonnes in 10 years

Question 12

in April 2011, how much greenhouse gases were released from livestock?

Answer 12

39% (methane)

Question 13

which countries emit the most from agriculture?

Answer 13

Asia (44%), USA (25%)

Question 14

how much greenhouse gas emissions are from agriculture?

Answer 14

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