nenad#41
The Green Revolution crops, introduced in the late 1960s and early 1970s,
produce several times as much grain as the traditional varieties they
replaced, and they spread rapidly. They enabled India to double its wheat
crop in seven years, dramatically increasing food supplies and averting
widely predicted famine.
But the report says that the new crops, unlike their predecessors, fail to
take up minerals such as iron and zinc from the soil. So even as people
consumed more calories, their intake of these key "micronutrients" fell.
"High-yielding Green Revolution crops were introduced in poorer countries to
overcome famine," the report says. "But these are now blamed for causing
intellectual deficits, because they do not take up essential
micronutrients." The report is written by Dr Christopher Williams, a
research fellow with the Global Environmental Change Programme. Using
already published UN data he has calculated that 1.5 billion people one
quarter of the earth's population are affected by "Green Revolution iron
deficiency". He claims the condition impairs the learning ability of more
than half of India's schoolchildren. He concludes that, eventually, the
evolution of the brain could go into reverse as humans develop more
extensive digestive systems to cope with the lack of nutrients sacrificing
intelligence in the process.
rengeteget talalhatnal (ha nem flameol szolna), maga a United Nations is kimutatta hogy szar a gm kukrica, amit bevezettek mar tobb orszagban... Az ok amiert marad :penz