"Food price volatility,growing population, water scarcity and climate change.

VOA: special.2011.05.03

Africa,with already severe weather conditions and a poor population largely dependent on subsistence farming, is considered to be the continent most threatened by climate change.

VOA: standard.2009.11.04

"Whether or not they blame Karzai for that personally, I think that there is a general sense among significant parts of the population that it may be time for a change.

VOA: standard.2009.08.03

"That the population is so high that there will be a major population crash, that we will run out of food unless we change our ways, this just turns out not to be truth."

VOA: standard.2010.01.23

A Royal Society research team member, Jules Pretty, says the team took into account a number of changes that are expected in coming decades, such as climate change, massive rises in world population, and new consumption patterns.

VOA: standard.2009.10.21

Indeed,volatile food prices, population growth, low agricultural productivity and the potentially devastating effects of climate change make it a particularly daunting challenge. The IFAD president says over the past 30 years, agricultural productivity in developing countries has been stagnant or in decline. He blames it on years of under-investment.

VOA: standard.2010.03.29