More than a century and a half ago, scientists have warned that the extreme events of the 19th century, which killed 50 million people, could happen again and have more serious consequences.
The drought, known as the Great Drought, began in 1875 and devastated crops in Asia, Brazil and Africa, resulting in a massive famine that killed 50 million people.
The global famine that came with the Great Drought between 1875 and 1878 is one of the worst humanitarian disasters in history.
The scientists warned that if it happens again at the present time, it would be "much worse", according to the site "Daily Mail" British.
In view of global warming, new research suggests that similar droughts caused by El Niño or other natural events will be more catastrophic than in the past, which will have a devastating impact on the World Food Program .
El Niño is a naturally occurring phenomenon and is characterized by an unusually high temperature of sea surface temperature in the central and equatorial Pacific Ocean, according to the UN Food and Agriculture Organization (FAO) website.
On average, El Niño once every 2-7 years, and can reach once every 18 months. As they occur, normal patterns of tropical precipitation and atmospheric circulation are disrupted, causing extreme weather events around the world.
Using data on tree growth, rainfall records, etc., researchers at Washington State University have been able to identify the conditions that led to that great drought.
The Panel found that many naturally occurring events are responsible for this.
In 1875, India's monsoon season declined, leading to drought. Droughts spread in East Asia, most of Africa, north-eastern Brazil, and parts of Southeast Asia and Australia.
At that time, British colonists were exporting grain from India, exacerbating the problem.
"The climatic conditions that caused the great drought and global famine have arisen from natural fluctuations," said Drifty Singh, a co-author of the study. "With the increasing hydrological effects of global warming, it could undermine global food security once Other ".
The researcher warned that the destruction that followed these events will cause social and economic effects that may continue for more than a century ahead.
Singh said a similar global climate event could happen again, especially with climate change expected to increase El Niño's future growth.
