8 - 農業

农业 8
第二副 www.climatefresk.org 8 农业会排放少量二氧化碳 大量甲烷 来自牛只和水稻田 以及一氧化二氮 来自肥料 ), 它的温室气体排放占比是 25 % 其中包含毁林 )。

1
Cause

人類活動

人類活動

accounts for 25% of GHGs if we include induced deforestation.

2
Consequences

森林面積減少

農業

Deforestation is due for 80% to agriculture. It can be considered as a human activity or as a consequence of agriculture of both.
其他溫室氣體

農業

The pictures in the background of card 9 should put you on the track!

5
Other possible consequences

化石燃料

農業

Agriculture does not use much fossil fuel, just enough to keep tractors running. Its carbon emissions are high, bu mainly because of methane and nitrous oxide.
二氧化碳(CO2) 排放

農業

Agriculture does not emit much CO2 except from deforestation. Its carbon emissions mainly come from othe GHGs.
氣溶膠(懸浮微粒)

農業

Spraying crops does result in aerosols and air pollution, but not to the same extent as incomplete combustion from power plants.
碳匯(Carbon Sink)

農業

It doesn't matter if this link is not made, but it is true that agriculture can improve storage capacity through photosynthesis. This is the 0.4% principle (if we increased the soil's capacity to sequester carbon by even 0,4%, we would have a significant impact on CO2).
陸地生物多樣性

農業

Here, we are thinking mainly of pesticides (especially Roundup or neonicotinoids). No link with the climate, but an interesting relation to make.

2
Wrong causes

陸地生物多樣性

陸地生物多樣性

It would be more logical to link to agricultural yields.
農作物產量下降

農作物產量下降

Yes, the yield decline does affect agriculture, but the agriculture card is here to stand for one of the causes of GHG emissions.
↩ Back