Why could they be running out?

They could be running due to many reasons. -For energy, Fossil fuels are hard to extract, Non renewable energy are very good but some are expensive or not enough or some countries cant keep up with the demand. -For food, Climate change doesn't do us a lot of help as it can dramatically change the weather. Diseases could wipe out farms and wars could destroy the food supply. -Finally for water, clean water isn't equally distributed, Infrastructure could affect the transport of water and Wars could erupt to gain more clean water.