Many scientists have already predicted the global climate of our planet will be warmer in the future. This is based on evidence that concentrations of CO 2 in the air have been, and will continue to be, increasing. Such models are useful for predicting general global climate trends. However, one must keep in mind that estimates of climate change for a specific area are less exact. One must also remember that the above climate model is an over-simplified example.
Climate models describe the relationships among many variables.
Each of these variables affects the others and thus affects the climate. For this reason, most climate models are sets of very complex equations with many variables examined at the same time. The Carbon Dioxide , Temperature , Precipitation , and Wheat pages of this puzzle piece all contain observed and predicted data. Some of the observed data may have been collected through direct contact with the source, while other observed data may have been remotely sensed. The predicted data is based on trends or patterns in the observed data.