There is a strong consensus in the scientific community that greenhouse gas emissions generated by human activity has caused change in Earth’s climate and its biological systems from the ecological level to the physiologies of individual organisms. Rising mean temperatures around the world are not only limited to biological systems. Global warming effects on non-biologic phenomenon such as El Nino are unpredictable. The length, frequency, and intensity of El Nino related consequences like wind disruption, storms, extreme weather events like monsoons and hurricanes have increased in the past few decades however. El Nino is an ocean phenomenon of the Pacific Ocean. It occurs when southeast trade winds weaken and prevent cool, nutrient rich water within the Peru Current from replacing warm surface water that should be moving westward. El Nino is essentially the warming of surface waters in the Central Pacific of 1 degree greater than normal which lead to many global consequences. One of which is the unusual increase and decrease in precipitation and temperature over many areas. These types of changes will alter interactions between all branches of life from the unicellular to the multicellular, which will negatively affect human health. Changes in ecological processes due to climate change will increase infectious disease transmission. The question is: How much will climate change affect disease patterns?
