Guess the future of the Human race

[Final-Fan]

sapphi_snake said:

The UK is also a bad example, as it sustains 60% of it's food needs. Also, European states mainly import from eachother and export from eachother, and they have the capacity to sustain the needs of the continent without importing from other continents (agriculture is quite possible and practiced in all European states, and they also use modern agricultural methods). Add the low population growth and you won't have a problem.

The countries most affected by overpopulation are the underdeveloped ones, as they have high birthrates and lack the capacity to assure their food needs, regardless of what resources they have (lack of technology, poverty etc.). Famine is already a problem over here, and it will take decades for things like democracy, education, secularism and liberalism to reach these countrie, and finally people start being more responsable regarding reproduction.  The main problem that Europe could face (and also the US) are military attacks from these poor countries who want to steal their food.

60% is certainly low enough to worry about sustainability if the food exporting countries decide they need it for themselves, unless as you say the exports/imports of food more or less balance out. 

As for attacking us for our food, it sounds like you are suggesting some kind of raid would take place where they send in troops that literally sack warehouses etc.  IMO that is totally impractical.  They would have to invade to take over the food producing areas.  Unless they were somehow incercepting huge food shipments on a regular basis, nothing else would be regular enough and large enough to support a nation's population.