Due to melting ice caps caused by global warming, the number of polar bears has been significantly reduced. A skinny polar bear struggled to find food in the ice-free Arctic.
This is the most direct manifestation of the impact of the greenhouse effect. If the Earth can actually enter a mini-ice age in 2019, then the greenhouse problem can be solved. From this point of view, this is good news.
But the arrival of the Little Ice Age will also pose problems. The last minor ice age occurred between 1550 and 1770. Global temperatures were falling and pedestrians were even walking directly on the ice of the River Thames in the United Kingdom. The Beijing-Hangzhou Grand Canal in China has been frozen since November, requiring strongmen. to cut off ships. Ice alone can travel 3-4 miles per day. At the same time, production fueledire has been significantly reduced worldwide. It was a troubled year.
But apart from this, climate change over the past two hundred years seems to have left no other significant mark on human history. Human beings do not seem to have stopped their progress because of the cold. At the end of the Ice Age, Europeans with frozen hands and feet entered the first industrial revolution. Machines eventually began to replace manual labor. It seems that the cold can make people progress.
In agricultural societies, the first problem people face is climate. Reduced yields caused by climate change are dealing a devastating blow to human populations. Today, after entering the industrial society and with the development of planting technology in China, it is no longer a problem for Chinese people to have sufficientPlenty of food and clothing, even during the Little Ice Age. However, issues such as water shortages in some regions and serious consequences caused by extreme weather conditions need to be actively addressed.