Causes Of The Enhanced Greenhouse Effect Flashcards
what are the 3 main causes of the enhanced green house effect caused by humans?
land use change
deforestation
urbanisation
what percentage of annual carbon release does land use account for? what does it impact?
10%
it impacts short term stores in the carbon cycle such as soil and atmosphere
what are examples of land use change?
farming practices
fertilisers
how much of deforestation is for cattle ranching?
70%
how much methane do cattle emit minimum per year?
230 million pounds of cattle
how have fertilisers and rice padi fields increased methane production? what is the substitute solution?
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
how much methane does rice paddies produce per year?
50-100 million tons
how much of all global greenhouse gas emissions does deforestation account for?
20%
what’s the main impact if the carbon cycle is interrupted by deforestation?
reduces carbon sequestration
land becomes a carbon source rather than a carbon sink
how much of the worlds land mass does urban areas occupy? but how much of all human co2 emissions occur here?
2%
97% of all human co2 emissions occur in this 2%
what building material releases co2 in production? and how much does it contribute to global carbon dioxide emissions each year?
cement
7% of global carbon dioxide emissions each year
what have humans started to help mitigate global warming and to restore environments?
the emergence of rewilding where human managed areas are being reduced and replaced by wildlife to restore environments