poor people rarely have their own land to grow food. even if they do struggle to afford seeds and fertiliser. globally poorer nations can't afford to import food.
factors affecting food supply - 1stleastsignifcantfactor = pests and dieases
these reduce crop yields by eating or killing them e.g loctus
those with technology can grow food more efficiently and faster leading to surpluses. those without get left behind.
factors affecting food supply - least significant factor = conflict
fighting may damage agricultural land or make it unsafe. refugees forced to flee conflict zones find it harder to access food. war can also disrupt trade routes
impact of food insecurity - famine
this is a serious lack of food across a largearea.people are unable to getenough food leading to starvation and death. there have been some devasting examples of this including the famine in Somalia which lasted from 2010 - 2012. The UN estimates that around 258,000 Somalia's died across the nations.
impact of food security - undernutrition
lack of balanced diet and deficiency in minerals and vitamins FAO estimates that 805 million people suffered from undernutrition from 2012 - 2014. It is a major public health problem, particularly in South Asia and SubSaharanAfrica.300kdeathsperyear
impact of food insecurity - soil erosion
involves the removal of fertile top soil layers by wind and water. There are several causes - over grazing animals reduces the amount of vegetation leaving soil exposed - cultivation of marginal land to increase food production = loos of fertility.
impact of food insecurity - rising prices
food prices = increases mainly due to increased prices for fertilisers, animalfeed, foodstorage, processing and transportation. Increased food cost food represents a largershare of their spending.
impact of food insecurity = social unrest
foodprices index increaseddramatically in 2008 and again in 2011. Most inadents happen in LICs or NEEs in Africa + MiddleEast e.g 2011price of cookingoil and flour doubled in Algeria