At last, the prediction model of climate yield of local cotton is established, which has surely value.

最后建立了各地棉花气候产量预报模式，具有一定的实用价值。

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They found that climate changes "are already exerting a considerable drag on yield growth" and may have affected food prices.

VOA: special.2011.05.17

Moreover, there is a simple way more or less to abolish the effect of climate change on yield to date.

ECONOMIST: Climate change and crops

The explained variance of this residual yield by climate is generally about 50%, which is very close to the average I found for corn, soybeans, and winter wheat.

FORBES: Climategate II: An Open Letter to the Director of the National Center for Atmospheric Research

He went on to state that I did this by simultaneously modelling the technological, spatial and climate components of agricultural yield, instead of separating out technological components first.

FORBES: Climategate II: An Open Letter to the Director of the National Center for Atmospheric Research