The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.
By Tom Taulli
NEW YORK ( InvestorPlace) -- While investors try to anticipate next quarter's earnings results or even examine the big picture in Europe, it's really important to stand back and look at the even bigger picture. It might not be easy, but it's what top-notch investors like Berkshire Hathaway's (BRK.A) Warren Buffett do. It takes guts and patience, but the payoff can be big.
One thing to look for is secular trends, which can be powerful forces that propel growth. A big one to consider: population growth. On Halloween, the world population hit 7 billion. And according to estimates from the United Nations, it might reach 10 billion by the end of the century.
FoodOne of the impacts of global warming is the higher probability of extreme weather events. Examples include hurricanes, droughts, tornadoes and cyclones. Add to that the increasing demand for land for residential and commercial space, and it probably will become increasingly difficult to boost (or even maintain) agricultural productivity. To deal with this, farmers will look for things like next-generation fertilizers, which can work better in tough environments.
WaterWhen a doctor removes life support for a patient, he or she can live up to two weeks without food. But without water, death will come in a couple days. Gruesome stuff, but humans' obvious need for water is something to consider as the world's population is putting enormous strain on the usable water supply.
EnergyPeople cook food, heat their homes, drive cars and use computers increasingly more for both work and play. All this takes energy, plain and simple. And more people means a need for more energy. Obvious plays include companies like Exxon Mobil (XOM) and Chevron (CVX). Given the difficulties of finding new reserves, these companies should continue to see growth in revenues for years to come as prices of crude continue to rise.
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