population growth Flashcards
1
Q
population predictions by 2050
A
9.7 billion
2
Q
% food demand increase by 2050
A
59-98%
3
Q
how much has pop increased in last century?
A
quadrupled
4
Q
how to meet increased food demand
problems for environment?
A
increase agricultural land used
increased productivity- fertilisers and irrigation
deforestation, leaching and eutrophication
5
Q
what are rising too slow to meet pop growth?
A
crop yields
6
Q
problems facing food production
A
climate change
urbanisation- less rural farmers
lack of investment
