"The drastic and unexpected shifts associated with climate change make it harder for farmers to plan productive strategies to yield the most successful harvest.
Topical regions like Latin America, the Caribbean and Africa have been hit the worst, with agricultural growth a third of what it could be.
Chambers and Ariel Ortiz-Bobea, an economist at Cornell University, created a model to calculate productivity both as it is now and where it would be if weather patterns had stayed where they were decades ago.
They found a 21 percent reduction in global agricultural productivity since 1961, the equivalent of losing the last seven years of growth.
Warmer regions like Africa, Latin America and the Caribbean have experienced slows in crop productivity of between 26 percent and 34 percent, the study determined.
...The
study, as is normally the case with climate junk science, does not use
any real world data, it is all based around a computer model, which
naturally depends on what assumptions you factor in.
It goes without saying that actual crop yields have rocketed since 1970.
However
it is useful to compare global cereal yields with those of South
America, which the study claims has been badly affected.
Whereas global yields have risen by 203% since 1961, South America’s have gone up by 286%.
The latter’s rate of increase since 1990 has been even more marked.
http://www.fao.org/faostat/en/#compare
There are all sorts of reasons for increasing yields, and it is simply impossible to single out one solitary factor.
But
what we do know for certain is that world leaders in the 1970s were
extremely concerned about the impact on food production caused by the
onset of global cooling after the war:
ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/journals/noaa/QC851U461974oct.pdf
Nobody in their right mind would want to return to those days."
From the article comments:
" So the greening which is occurring due to the restoration of higher CO2 levels following the last glaciation is a bad thing?
Only
to those elitists who want to keep people in a constant state of
poverty and famine in order to feel good about themselves when they
“care.” "
"The population has doubled since 1960.
13% of world is obese.
A much higher percent of adults.
Common sense says Fake News."
"I
would far rather rely on statistics showing me how much better food
productivity is, than a model telling me how much better it would have
been without some insignificant rise in global temperature."
