Children born now may live in a world where the US can only produce half as much of its key food crops

The high global temperatures are set on food crops all over the world, especially The disturbing effects It is expected for the United States, where the production of major crops can decrease by 50 % by the end of the century, according to a comprehensive new analysis.

Among the many effects of the climate -based climate crisis, the damage to the global diet is one of the most terrifying parties. But the overall effect of climate change on crops – how much can be compensated by farmers’ adaptations – was difficult to create and hot discussion.

The new analysis, eight years in this position, is “the first attempt to address each of these two problems.”

Scientists have analyzed six crops – corn, soybeans, rice, wheat, kusafa and thin corn – in more than 12,000 regions in 54 countries. Together, these crops provide more than two -thirds of human calories.

They also measured how farmers in the real world with climate change, from changing crop varieties to irrigation control, and calculating the total effect of global warming.

Their results are blatant. Each percentage Celsius The world falls over the pre -industrial levels will decrease global food production by 120 calories per person, according to what he said TicketPublished on Wednesday in nature.

Hesiang said this would increase prices and make it difficult for people to reach food.

“If the climate is 3 degrees heated, this is similar to everyone on this planet abandoning breakfast,” he said. The world is currently on the right path 3 degrees Celsius By the end of the century.

The study found that wheat, soybeans and corn – crops with high value for many of the world – will be particularly affected.

If humans continue to burn large quantities of fossil fuels, corn production may decrease by 40 % in the cereal belt in the United States, East China, Central Asia, South Africa and the Middle East; Wheat production may decrease by 40 % in the United States, China, Russia and Canada; Soybeans ’revenues can decrease 50 % in the United States.

The only basic crop that may be able to avoid large losses is rice, which can benefit from warmer more warm night temperatures.

One of the amazing results of the study is that some of the richest countries are likely to be more difficult.

Hesiang said the poorest parts of the world, where climatic conditions are already harsh, tend to be more air -conditioned and better prepared for the effects of the climate crisis. He said that agricultural systems in baking ships, such as the United States and parts of Europe, are optimal for the current moderate climate.

Hesiang said that global warming will be particularly destroyed for the United States, as it is expected to reduce revenue by 40 % to 50 % for all basic crops except for rice.

“The places in the West are really right for corn production and soybeans at the present time, giving up a high -warning future,” said Andrew Holtger, an assistant professor in agricultural economy and consumer economy at the University of Illinois Urbana Champin. “You start to ask whether the corn belt will be the corn belt in the future.”

Low income countries will not escape effects. The study found that the revenue of the subsistence crop will fall into sub -Saharan Africa with the world’s high temperature, which is a major threat to nutrition for some of the poorest people in the world. “One of the reasons why people grow fracture is that it is very strong, but we see that it is still negatively affected by the conditions of intense heat,” said Hesiang.

The study revealed the importance of adaptation but also its limits. “The authors show that the current decisions of adaptation are not enough to ensure food security in the future,” CNN told CNN.

One of the study restrictions is that it does not take into account two main adjustments to the climate: switching crops or changes in cultivation dates. In the United States, for example, corn crops and soybeans moved north. She told CNN that these changes could compensate for more climatic effects.

In the end, the results add to a long list of disturbing research on the global diet, said Tim Lang, Fakhri Professor of Food Policy at City Saint George, University of London.

“The data accumulates. Politicians turn a blind eye … the use of lands does not change quickly or radically enough. Some pioneers are doing their best. But the net impact is that the global preparation room diminishes.”

HSIANG hopes that the study provides more evidence of the urgent need to transfer the power system and the high costs of failure to do so.

“This is a big problem. It is incredibly expensive. As a type, we haven’t faced anything like that.”

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