8 - Agriculture

කෘෂකරම 8
Set 2 www.climatefresk.org 8 කෘෂකරමානතය CO 2 වශාල පමාණයක වරමෝචනය රනාක න නමත මරතන ( ගවය න ස ස ල වලන ) ස නයටසේ ඔකසයඩ ( රපාර ා වලන ) වශාල පමාණයක වරමෝචනය ක ය . සමසේතයක වශරයන ගත කල , අප රේරත වන වනාශය ඇතළත කළර ාත රතාගා වාය වලන 25 % ක කෘෂකරමානතය මගන සද රේ .

1
Cause

Human activities

Human activities

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

2
Consequences

Deforestation

Agriculture

Deforestation is due for 80% to agriculture. It can be considered as a human activity or as a consequence of agriculture of both.
Other GHGs

Agriculture

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

5
Other possible consequences

Fossil Fuels

Agriculture

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.
CO2 Emissions

Agriculture

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

Agriculture

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

Agriculture

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).
Terrestrial Biodiversity

Agriculture

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

Terrestrial Biodiversity

Terrestrial Biodiversity

It would be more logical to link to agricultural yields.
Decline in Agricultural Yields

Decline in Agricultural Yields

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