8 - Agricultura

Agricultura 8
Set 2 www.climatefresk.org 8 Apesar de emitir uma pequena percentagem de CO 2 , a agricultura é responsável por uma grande percentagem de emissões de metano (da pecuária e arrozais) e óxido nitroso (de fertilizantes). No total, representa 25% dos GEE emitidos, se considerarmos ainda a desflorestação induzida.

1
Cause

Atividades Humanas

Atividades Humanas

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

2
Consequences

Desflorestação

Agricultura

Deforestation is due for 80% to agriculture. It can be considered as a human activity or as a consequence of agriculture of both.
Outros GEE's

Agricultura

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

5
Other possible consequences

Combustíveis Fósseis

Agricultura

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.
Emissões de CO2

Agricultura

Agriculture does not emit much CO2 except from deforestation. Its carbon emissions mainly come from othe GHGs.
Aerossóis

Agricultura

Spraying crops does result in aerosols and air pollution, but not to the same extent as incomplete combustion from power plants.
Sumidouros de Carbono

Agricultura

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).
Biodiversidade Terrestre

Agricultura

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

Biodiversidade Terrestre

Biodiversidade Terrestre

It would be more logical to link to agricultural yields.
Declínio da produção agrícola

Declínio da produção agrícola

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