England has lost more than half of its bee colonies."Bees will be the first to disappear before the end of the world" Wang - Guardian Ultima. Why are bees disappearing? If there are no bees
Pesticides applied to fields against weeds do not kill bees, but make them vulnerable to mites. Well, scientists from Germany have a lot of evidence that the death of bees is influenced by radio signals from cellular networks. They disrupt the bees' orientation system, and they cannot find their way home to the hive and die.
In countries where the greatest decline in bees has been recorded (USA, Canada, China, Australia, some European countries), genetically modified plants are grown en masse. Of course, bees cannot pass them. At the same time, the source of their genetic infection is not only pollen and nectar of GM plants, but also feeding from sugar produced from GM beets. When young bees consume GMOs, as adults they experience destruction of internal organs and decreased immunity.
The world changes - the bee changes and disappears. It is now common knowledge that, compared to the United States, the situation with bees in the UK is still better: in recent years, the bee population here has decreased by about a third. And the threat of complete extinction of the honey bee in this country is predicted in the next decade.
Dead bees do not buzz... Their mass death, which environmentalists in a number of countries are already sounding the alarm about, could lead to the disappearance of many plants, including agricultural crops. After all, almost 80% of them are pollinated by honey bees. Therefore, big problems await humanity. Although attempts are being made to somehow get out of this situation. Let's say there are “breeding ideas” in the air. Thus, some scientists propose to develop a new species of bees that are resistant to any diseases by crossing ordinary honey bees with aggressive Africanized bees that have strong immunity.
Science fiction writers, meanwhile, paint such a picture of saving the planet in the event of the disappearance of bees, people en masse go out to fields, meadows and carry out artificial pollination of plants. But where the bee flew, a person could not reach. For everyone has their own purpose. There is still time to stop the Great Chaos and Human Madness in relation to the environment. Already the bees, as we see, give an alarming “SOS!” about this.
Last year, Nature magazine reported that Europe lost 1/3 of its honey bee population last winter. What happens if bees disappear? Einstein said that after the bee, man will die.
Frightening numbers
A person can live without oxygen for three minutes, without water for three days, and without bees for four years. At least that's what Einstein thought. The scientist's quote appeared in 1941 in the Canadian Bee Journal. It follows from it that the death of bees for humanity will be no better than a global catastrophe - a volcanic eruption, a meteorite fall or the explosion of a large hadron collider. The result is still the same.
Meanwhile, the mass death of bees continues. The scientific journal Nature reported that in southern countries over the past winter the population decreased by 5%, in central Europe by 10-15%, and in the North by 20%.
In Russia, the number of hives has decreased especially strongly in the Chelyabinsk and Ulyanovsk regions. In the country as a whole, bee mortality is 20%. Experts say that the current number of bees is no longer enough to pollinate all plants. Last year, the UN declared that bee mortality was becoming a global problem.
What is the problem? 
The story of the death of honey insects is not new: the process began in the middle of the 20th century, but reached its peak in the last twenty years. There is no single reason, but the main culprit has been found - a person.
Agriculture has almost everywhere switched to chemicals - nitrogen fertilizers, pesticides. The latter do not kill insects, but, according to scientists, they lower their immunity.
Professor Peter Neumann talks about the plague of bees - varroatosis, a disease carried by a microscopic mite: “it is dangerous because it sucks all the vital juices out of the bee. This is the most common bee disease, it is difficult to get rid of these mites, and treating and nursing weakened insects takes a lot of time and rarely leads to the desired results.”
And a worker bee is not supposed to get sick. Beekeepers do not particularly care about the health of the hive members and continue their business as usual: transporting bee colonies over vast distances. In the US, hives are transported from Florida to California to pollinate crops. Such long trips place bee families under enormous stress. And this leads to “colony collapse syndrome.”
It was described by American beekeepers in 2006. During the course of the “disease,” insects leave their colonies, never to return there again. Bees do not live alone and soon die away from the hives. The reason for the strange behavior is chemicals and cellular radio signals, which, according to scientists at the University of Koblenz-Landau, drive the winged workers crazy.
What if...? 
Still, what happens if bees go extinct or their population declines to critical levels? Will Einstein's prediction - “no bees - no pollination - no food - no humans” - come true?
It must be said that there are other natural pollinators in the world - flies, butterflies, birds, bats, wind. Additionally, not all plants are pollinated by bees. In the old days, the flora of North America and Ireland managed just fine without them. It was people who brought bees there.
But since the great geographical discoveries, considerable changes have occurred in the world. The population has grown, and the need for food has also grown.
Today, the loss of bees, to whom we owe 1/3 of the entire harvest, cannot pass without consequences. Humanity will lose more than just honey.
The Times and Business Insider provide the following chain, citing expert opinion: the higher the mortality rate among insects, the faster beekeeping will become unprofitable. People will begin to abandon their craft, and the frightening statistics will only get worse. Since most of the harvest depends on bees, humanity will have to “tighten its belts” - food counters will be empty, prices for the remaining products will skyrocket. Hunger will begin. And you shouldn’t rely on other components of our daily diet. Since some of the plants will disappear, livestock will also lose food, which means there will be a shortage of milk, cheeses, yoghurts and, ultimately, beef. In general, no matter how you look at it, a world without bees will not be able to afford the current human population.
Compared to the previous one, the thought that a person will have problems with clothes simply fades. Among other things, bees pollinate cotton. In general, you will have to say goodbye to the “100%, 50%, 5% cotton” tags and switch to polyester or skins.
Diet of the future
Still, a person will have hope. The pig, which does not depend on the winged workers, will not leave him. The stocks of some basic food products - grain crops and rice, which are pollinated by the wind, will decrease slightly, but will not disappear.
Man will find another salvation where life once originated - in the ocean. The disappearance of bees itself will not affect the fish population, but if people get down to business with their inherent insatiability, marine inhabitants will soon repeat the fate of insects.
Alternatives 
At the same time as searching for a solution to stop the increase in bee mortality, scientists are looking for a replacement. The first candidate is a bumblebee. He also collects honey, but not as tasty as that of bees. Bumblebee honey resembles sugar syrup, but it is also not enough. For comparison, after honey collection, 34 kg of honey was pumped out from two bee colonies, and bumblebee honey was selected using an eye dropper (48 g).
But the bumblebee has long proven itself to be a pollinator. For example, in some areas of Siberia, agriculture has long switched to them. Agronomist Lyudmila Chupina claims that “bumblebees are more industrious than their relatives and are cheaper to maintain.” One problem: they, too, are dying out.
The second potential substitute for bees is humans. The authors of the study “A World Without Bees,” Benjamin Allison and Brian McCollum, immerse the reader in a world where people have learned to live without honey plants. This is not the Earth of 2070, but the modern Sichuan province of China. The bees disappeared there about twenty years ago, due to the already mentioned pesticides. However, the region remains the largest exporter of pears, which are pollinated by bees around the world and here by people. Workers pollinate flowers by hand. It's inconvenient and expensive, but it works.
Another candidate is a robot bee. According to the Guardian, Harvard engineers are currently developing the new assistant. Experimental models have already been invented. Robots with their wings repeat the movements of a bee and thus pollinate plants. According to scientists, one decade separates them from completing the project.
And yet the world needs bees. Once upon a time, 65 million years ago, nature forever erased dinosaurs from the “book of life”, but left bees. More precisely, according to biologist Sandra Rehan from the University of New Hampshire, after complete extinction they were reborn. Perhaps they will outlive humanity.
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Over the past half century, many countries in America, Asia and Europe have faced the problem of mass death of bees. Scientists began to talk about the threat of the death of humanity. Let's look at the reasons for the extinction of bees, and what consequences this may have?
Causes of death of bees
For the first time, the extinction of bees in numbers exceeding natural death was noticed in the twentieth century after the First World War. The process accelerated in the last decades of the twentieth and early twenty-first centuries. The beginning of this process is associated with the massive use of pesticides and other pesticides in agriculture.
In the twenty-first century, the process of decreasing the number and types of worker bees is gaining alarming proportions. For example, in the United States, half of the bee colonies died in 2012 alone. In Russia in 2007-2008, the number of winged workers decreased by forty percent.
Among the reasons leading to their death, it is impossible to single out two or three that can be solved quickly and effectively. Let's consider the main factors influencing the life and reproduction of beneficial insects:
Why are bees dying out? As we see, there is no single reason for the rapid decline in the number of winged workers. In addition to death from diseases and chemicals, sudden disappearances of entire bee families, the so-called collapse, have been observed. In 2012, in America, due to the collapse, the number of bees decreased by fifty percent.
One of the reasons for leaving hives may be stress caused by transporting apiaries over long distances to pollinate agricultural land. After departure, the bee swarm is doomed to die within the next few days, because domestic bees cannot exist outside the hive.
In Russia, after wintering 2016-2017, a significant death of bee colonies was recorded. Typically, after wintering, mortality in apiaries ranges from ten to forty percent. Over the past winter, in some areas, beekeepers lost all their bees.
In Estonia, during the winter of 2012-2013, the number of bees decreased by twenty-five percent, and in some apiaries the death rate was one hundred percent. The cause of such mass death can be both severe frosts and late spring, and damage by foulbrood.
Consequences of extinction of bee colonies
Humans need bees not only to obtain a sweet, healthy product. Workers fulfill their main mission by pollinating the lion's share of agricultural plants and gardens. Without bee pollination, not only will food availability decrease.
Many plants will not be able to reproduce without pollination, and are gradually disappearing from the surface of the Earth. First, there will be a reduction in the harvest of buckwheat and other crops. Gardens without pollination will no longer provide us with fruit. An interesting fact is known that in some provinces in China, where there are no bees, gardens are pollinated by hand. But this method cannot replace pollination of gardens by bees.
What foods can disappear from our diet? Apart from honey, which people have enjoyed and been treated with for thousands of years, there will be no fruits, watermelons, grapes, and, surprisingly, coffee. Without some herbs, for example, alfalfa, which is pollinated by bees, it is impossible to provide adequate nutrition for dairy livestock: cows, goats.
Following the bees, many animals that feed on plant foods will become extinct. The disappearance of elements of the food chain will lead to mass starvation. Many have heard the statement of the brilliant physicist Einstein that after the death of the last bee, humanity will not live more than four years and will die of starvation. The Bulgarian healer Vanga also predicted the death of bees and cultivated plants that serve as food for people and animals.
How many people know that without bees we will lose such a natural product as cotton? After all, its pollination is impossible without bees, and not only will we not have clothes made of light cotton or cambric. But prices for synthetic fabrics will rise significantly.
In addition, the decline of plants, flowers and grasses that require insect pollination for reproduction will accelerate. Some argue that pollination is carried out not only by bees, but also by wasps and other insects. But in terms of the number of plants pollinated, no one can compare with nectar collectors.
British scientists predict the complete disappearance of bees in the world by 2035. This is the most pessimistic forecast, because today many experts are looking for a way out of the current situation. Optimists say that wheat and rice, corn and soybeans will remain. Of the animals whose meat is used for food, pigs and chickens will survive. The yield of potatoes, tomatoes and carrots without pollination will decrease, but only slightly.
Due to the reduction in the number of products and their species diversity, various diseases will begin to attack humanity. After all, the human body receives the maximum amount of useful vitamins and minerals from products that cannot be grown without pollination.
Video: The extinction of bees threatens the death of all humanity.
What do scientists suggest?
Restricting the use of pesticides in agriculture and banning the use of antibiotics in the treatment of bees alone is not enough to restore populations.
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