The lecture and the article are both about the little ice age that was a period of unusually cold temperatures in many parts of the world.

The lecture and the article are both about the little ice age that was a period of unusually cold temperatures in many parts of the world. The article suggests three possible explanations for occurring the little ice age. The lecture challenges the claims made by the article, He is of the belief that these explanations are out of date and scientists explain new information about the causes of little ice age. To begin with, the article states that before the ice age, the weather was very warm, so melted glaciers sent a large amount of cold freshwater into the gulf stream and this cold water was the cause of little ice age. The specific argument is challenged by the lecture. He is of the opinion the cooling gulf stream had occurred in Europe and North America but the little ice age was severed in the southern hemisphere. Therefore this reason is faulty. Secondly, the writer mentions that the dark cloud of dust of volcanic eruption blocked sunlight; Therefore, the weather became cooler. The lecturer, however, rebuts this by mentioning that volcanic eruption has very visual signs like dark snow. Moreover, the dark dust was not very large to create the ice age. Last but not least, the author posits that decreasing in human population was critically important in cooling the climate. In contrast, the lecture position is that there was not enough time and the population raised fastly so they cut the trees and produced co2 gases again.