Usually a word or concept can be defined in just one sentence. A definition essay, however, needs to be several paragraphs. Therefore, the definition must be extended to include examples, details, personal experience, description, causes, effects, analysis, etc.
Global Warming Causes More Hurricanes. It could be that the tropical oceans will become warmer with a simultaneous decrease in upper atmosphere temperature, which will cause stronger convection, which will help tropical storms to become more organized and stronger so there will be stronger hurricanes.
Global Climate Change: Impacts Climate affects everything from the flora and fauna which inhabit a region to the heating and cooling requirements of homes and businesses. When climate begins to change, all living things must adapt their lifestyles in order to survive.