It has been made clear by several agencies that over the past hundred years the mean temperature of the state of Indiana and the adjacent regions has gone up by 1° F.
One most important factor that has resulted in this increase in the average temperature is the rapidly increasing emission of the greenhouse gases.
Indiana has stayed in the list of the top 10 states that produce half of the United States total greenhouse gases.
Gradual and consistent degradation of the environment due to the greenhouse gases has culminated in frequent flooding and rapid melting of the ice sheets on the Great Lakes.
