Man had begun agriculture and farming thousands of years ago. Humans are probably the only species that cultivate and grow their own food in such an elaborate manner. We depend so much on the environmental and climatic conditions that our food habits will be in jeopardy if there is even a slight variation in these circumstances.
Global warming can have a disastrous impact on agricultural yields. The majority of the world’s one billion poor people depend on agriculture for their livelihood. As mentioned earlier, agriculture, unfortunately, is the human enterprise most vulnerable to changes in climate. Studies have shown that South Asia and Southern Africa are especially at risk because higher temperatures and drops in rainfall could cut yields of the main crops people grow there.
Droughts or floods have already affected harvests in Russia, Germany, Canada, Argentina, Australia and Pakistan. It is estimated that half the world’s population will face serious food shortages in this century, because of global warming.
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