In 1991, 18.6% of the world population was undernourished. In 2015, 10.9% of the population was undernourished. What was the average percentage change per year?
Assuming the rate continues, what is the percentage of the population that is undernourished this year?
Determine an equation to represent this scenario.
Assuming this rate continues, when will there be no undernourished people in the world? Do you think this is actually possible?
What decisions at local, country and world level could be driving this change?