The prime candidate for the drought in Nicaragua because of the much warmer waters in the eastern Pacific is the natural phenomenon known as El Nino. This natural occurrence is still not understood properly and why it is happening. It is not happening every year, but on every few years, usually on every four years.
A jet stream is a fast flowing air current that occurs in the atmosphere of Earth and other planets. A global wind belt is formed by the Earth's spin and the unequal heating of the Earth via sunlight!
