"What to eat in the future": a competition about human future destiny

Reading prompt

Earth resources are exhausted, extreme weather is frequent, and war conflicts are constantly ... For various reasons, hundreds of millions of people in the world are suffering from hunger. "What to eat in the future: How to deal with the food crisis", the author Professor Amanda Litel, visit food manufacturers of more than a dozen countries, visit people who are trying to solve the dilemma of the grain crisis, with an agricultural bystander and The identity of the food experiencer tells the trend and attempts of the agricultural development in all walks of life.

■ Aixi Lakeside

The "World Food Safety and Nutrition Status" released in 2022 shows that in 2021, the number of global hunger has reached 828 million, an increase of about 46 million compared with 2020. According to a recent report by the National Broadcasting Corporation, before the outbreak of the new crown pneumonia, there were about 135 million hungry people worldwide. By 2022, the number of hungry people had risen to 276 million. The latest analysis showed that about 345 million hungry people in the world struggled on the edge of death. With the increasing weather and day by day, the world's population will reach 9 billion in the middle of this century.

"How to eat in the future: How to deal with food crisis" (July 2022, Social Science Literature Publishing House), Professor Amanda Litel, spent 3 years, visited food manufacturers in more than a dozen countries, visited People who are trying to resolve the dilemma of the food crisis, as an agricultural bystander and food experiencer, tell the trend and attempts of the agricultural development of all walks of life.

Competition in traditional agriculture

One morning in May, in a state in the United States, 350 acres of Apple Garden, within 4 hours of temperature below zero degrees Celsius, 6 million apples that were still in the budding period were frozen to death, and the total output of 3 orchards decreased by nearly 3 /4, the final harvest loss will exceed $ 1 million. In cities, we cannot perceive the impact of temperature fluctuations on us, but the extraordinary weather changes brought about by global warming can easily destroy the results of hard work and cultivation of farmers.

In the past half a century, there have been significant changes in frost, rainfall, water level and other indicators in spring, and fruit farmers have to take new planting methods. When the frost came, they dragged a fuel heater to shuttle in the orchard. When the warm winter air was coming, sprayed the water fog to cool the fruit tree. In addition, the farm has introduced robots that can pick up apples that can pick up at different growth stages through cameras. Agricultural scientist Heroode recognizes the harmfulness of the large -scale use of chemical substances in agricultural products, and develops an agricultural robot that can accurately identify weeds, so as to accurately spray agricultural chemicals on weeds without affecting agricultural crops. Growth. After collecting data on the sensors on farmland and robots, the information of these crops is fed back to farmers. This fine agricultural operation can bring people into the era of agricultural 2.0.

This year, we ushered in the hottest summer in history, and the lack of water resources and the problem of dirt panels became more serious. How to save resources, produce more agricultural products, and develop refined agriculture, have made more attempts at home and abroad.

The plants hanged on the tower of nearly 100 meters and was shot by the plant lights. The vertical farm created by the concept of cultivation method has become a future habitat for changing the method of planting crops. With the warming worldwide, many fish can only survive to survive in order to survive. At the Salmon farm in Norway, the owner here wants to drive a blue revolution in food to cultivate salmon in spherical cages made of solid polymers. They also tried to cultivate new types of seaweed, and under the pressure of complicated ocean flow and ocean warming today, they reached a marine version of the "rice and fish symbiosis cycle" with an engineering system.

The competition that is not seen

When hundreds of millions of people in the world are suffering from hunger, the waste of food has been happening. Every year in the United States, more than 520 tons of food are thrown into the garbage dump, and more than 1,000 tons of food are abandoned and rotten. The annual waste of food is valued at $ 162 billion to US $ 218 billion. And 95%of the garbage rot and fermented in the form of landfills, and then generated a large amount of greenhouse gases. For the earth, humans produce less garbage, and they must be better than recycling waste. In the book, the author also introduces some large -scale business super -large, private groups, and government -controlled practices. For example, no longer use the shelf date to specify whether to discard food, and propose to sell or donate or donate the price due to maturity.

Agriculture consumes 70%of freshwater resources in the world. In the Middle East, freshwater resources in many countries have been exhausted. The book describes Israel's unique pipeline management method in detail, allowing 8 million people to achieve 95%of agricultural products. Israel is also promoting the technology of seawater diluting and sewage purification globally. They imagine that God in "Genesis" makes the sea sweeter. Among many drought countries in Africa, Ethiopia has experienced serious drought. The author considers how a country face food security in many aspects of the macro direction and how to spend a famine. When a country needs to buy food from other countries for emergency, when the described people are not limited to agricultural workers and scientific researchers, they focus on families that are tortured by hunger. How painful the crowd is. What to eat in the future? Maybe in the future, the connection between plants and soil, weather, and ecological environment will become unpredictable. Maybe one day, the food we eat will be produced from the laboratory and factories. When the food loses the connection with the environment, the romantic romance of the traditional agricultural lifestyle may disappear. At this time, people talk about environmental protection may also become a "root duckweed". In this food crisis and food technology development competition related to human future destiny, manpower is sometimes exhausted, and the environmental protection of the industrialization era has no experience in history to follow. I hope we can include food saving food, reduced waste, and strengthen environmental protection into into In the concept of social development. Perhaps this can be liberated in the worsening environment and population pressure, and I hope that everyone on the earth can get rid of hunger.

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