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Growth in crop yields inadequate to feed the world by 2050 - research | Environment | guardian.co.uk

If the world is to grow enough food for the projected global population in 2050, agricultural productivity will have to rise by at least 60%, and may need to more than double, according to researchers who have studied global crop yields.

They say that productivity is not rising fast enough at present to meet the likely demands on agriculture.

The researchers studied yields of four key staple crops - maize, rice, wheat and soybeans - and found they were increasing by only about 0.9% to 1.6% a year.

by In Wales (inwales aaat eurotrib.com) on Thu Jun 20th, 2013 at 06:24:29 PM EST
[ Parent ]
Whatever we do in terms of restricting diets or improving productivity, if we don't restrict population growth, we're gonna run out of food sooner or later.

keep to the Fen Causeway
by Helen (lareinagal at yahoo dot co dot uk) on Fri Jun 21st, 2013 at 03:45:05 AM EST
[ Parent ]
All that can be done in that regard is already done.
Hans Rosling summarizes so much better than I possibly could, in his Ted talk.


The population explosion is over, the rising numbers are all inertia, and completely unavoidable.

by Thomas on Fri Jun 21st, 2013 at 06:37:18 AM EST
[ Parent ]
As far as I know, only China successfully restricted population growth. When people have reasonable life expectancy and women get an education, the population restricts its own growth. Improving outcomes in these two respects, in countries which have not yet made the demographic transition, is the key to limiting population growth.

The situation is far from hopeless, because a lot of progress is going on.

It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II

by eurogreen on Fri Jun 21st, 2013 at 08:12:41 AM EST
[ Parent ]
The study is neither named nor linked to in this article.

If you gloog the two researchers mentioned, you find a Nature article (Abstract). The "new research" was published last December.

Though, judging from the abstract, no mention is made of GM crops, the Guardian article states helpfully:

Growth in crop yields inadequate to feed the world by 2050 - research | Environment | guardian.co.uk

The study's findings are also likely to fuel debate over the efficacy of genetically modified crops, which some scientists have argued may be needed in future to feed the rapidly growing global population, which is expected to reach at least 9 billion by 2050.

I wonder who pitched this to Fiona Harvey, "environment correspondent", and why she's pitching it to the Grauniad's readership.

by afew (afew(a in a circle)eurotrib_dot_com) on Fri Jun 21st, 2013 at 08:23:39 AM EST
[ Parent ]
this reminds me of the projections of nuclear power believers when they say we can never generate enough energy greenly to supply our future needs, while ignoring how wasteful our current practices are.

when this kind of doomy blackmailing is used it is always a linear extrapolation of an already flawed model, ie that all 7 billion of us will all be eating eggs and bacon for breakfast, a big steak and some cheese for lunch, and fish for dinner.

Ain't Gonna Happen... nor should it!

'The history of public debt is full of irony. It rarely follows our ideas of order and justice.' Thomas Piketty

by melo (melometa4(at)gmail.com) on Fri Jun 21st, 2013 at 09:25:40 AM EST
[ Parent ]


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