Growing world population will cause a "perfect storm" of food, energy and water shortages by 2030, the UK government chief scientist has warned. By 2030 the demand for resources will create a crisis with dire consequences. Prof John Beddington said “If we don’t address this, we can expect major destabilisation, an increase in rioting and potentially significant problems with international migration, as people move out to avoid food and water shortages.”
Demand for food and energy will jump 50% by 2030 and for fresh water by 30%, as the population tops 8.3 billion . Climate change will exacerbate matters in unpredictable ways. The United Nations Environment Programme predicts widespread water shortages across Africa, Europe and Asia by 2025. The amount of fresh water available per head of the population is expected to decline sharply in that time.
Improving agricultural productivity globally was one way to tackle the problem .At present, 30-40% of all crops are lost due to pest and disease before they are harvested.