32 - Decline in Agricultural Yields

Declines in agricultural yields have already been reasons for conflicts in Rwanda and Syria.

Earth from Space
Global food security is a major challenge in the face of population growth and climate change. One of the first steps in achieving food security for all is to know which crops are growing where and how – each season. ESA’s WorldCereal product demonstrates the world’s first dynamic system to provide seasonally updated crop information to help monitor agricultural production across the world.
Credits :© European Space Agency - ESA

7
Causes

Decline in Agricultural Yields

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.


Decline in Agricultural Yields

Bees and worms are indispensable to agriculture.


Decline in Agricultural Yields


Decline in Agricultural Yields


Freshwater Resources

Decline in Agricultural Yields


Marine Submersion

Decline in Agricultural Yields


Decline in Agricultural Yields


3
Consequences

Decline in Agricultural Yields


Decline in Agricultural Yields


Decline in Agricultural Yields

La baisse des rendements agricoles peut avoir des implications importantes sur les inégalités, affectant non seulement les revenus des agriculteurs, mais aussi l'accès à la nourriture, à l'emploi et aux ressources.

Source : _AR6 WG2 FAQ 8.1 p1263 (p1251) // AR6 WG2 8.2.1.2 p1190 (pp1178)


2
Other possible causes

Decline in Agricultural Yields

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.


Decline in Agricultural Yields

Generally forests burn better than wheat fields.


1
Wrong consequence

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.