ANTH/PATH 2010 Plants, Pathogens and People World food crisis Why are plants important?What is your biggest immediate fear?? Inadequate food supply is a serious threat to our safety. Especially important when you consider the following:World population continues to increase especially in underdeveloped countries
has intentionally blurred sections.
Sign up to view the full version.
Current fertility – 2.55 children/woman Medium fertility – 2 children/woman - World population took 2-5 million yrs to reach 1 million but only 8 years to go from 4 – 5 million; - 17 yrs to go from 5-6 billion (due to decline in fertility in developing countries) Projected world pop. 9.2 billion by 2050 – by then 59% will live in Asia Future pop. growth trends (2007 and 2050): Due to declining population growth rates, developed countries will not change between, ~ 1.2 billion, (medium variant). Growth in the developing world will slow down - 4.6 to 6.2 billion