32 - 農業生産高の減少

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This is one of the greatest threats to humanity. Declines in agricultural yields have already led to conflicts in Rwanda and Syria.

7
Causes

農業生産高の減少

In northern countries, a little increase in temperature can lead to better yields, but in southern countries, it's the contrary: Any degree warmer is a decrease in yields.


農業生産高の減少

Bees and worms are indispensable to agriculture.


農業生産高の減少


農業生産高の減少


淡水資源

農業生産高の減少


海水浸水

農業生産高の減少


農業生産高の減少


2
Consequences

農業生産高の減少


農業生産高の減少


2
Other possible causes

農業生産高の減少

Studies have shown that yields increase with increased CO2, but that the nutrient content of vegetables is reduced as a result, because trace elements are not more abundant when yields increase.


農業生産高の減少

Generally forests burn better than wheat fields.


1
Wrong consequence

農業生産高の減少

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