Causes Of The Enhanced Greenhouse Effect

Question 1

what are the 3 main causes of the enhanced green house effect caused by humans?

Answer 1

land use change
deforestation
urbanisation

Question 2

what percentage of annual carbon release does land use account for? what does it impact?

Answer 2

10%

it impacts short term stores in the carbon cycle such as soil and atmosphere

Question 3

what are examples of land use change?

Answer 3

farming practices

fertilisers

Question 4

how much of deforestation is for cattle ranching?

Answer 4

70%

Question 5

how much methane do cattle emit minimum per year?

Answer 5

3.1 gigatonnes of methane per year

Question 6

how have fertilisers and rice padi fields increased methane production? what is the substitute solution?

Answer 6

they are both sources of green house gases

methane has increase as a result of increased productivity

due to higher co2 levels

solution: growing grains like quinoa as they require less water to grow

Question 7

how much methane does rice paddies produce per year?

Answer 7

50-100 million tons

Question 8

how much of all global greenhouse gas emissions does deforestation account for?

Answer 8

20%

Question 9

what’s the main impact if the carbon cycle is interrupted by deforestation?

Answer 9

reduces carbon sequestration

land becomes a carbon source rather than a carbon sink

Question 10

how much of the worlds land mass does urban areas occupy? but how much of all human co2 emissions occur here?

Answer 10

2%

97% of all human co2 emissions occur in this 2%

Question 11

what building material releases co2 in production? and how much does it contribute to global carbon dioxide emissions each year?

Answer 11

cement

7% of global carbon dioxide emissions each year

Question 12

what have humans started to help mitigate global warming and to restore environments?

Answer 12

the emergence of rewilding where human managed areas are being reduced and replaced by wildlife to restore environments