What are the threats to humanity on Earth?

What are the threats to humanity on Earth?

It is not difficult to find that the earth has been greatly damaged nowadays, and many people are endlessly depleting the earth's resources. It is precisely because of this that there are already problems in many aspects of the earth, and even human beings are facing a deadly threat.

I believe that many people will also be curious, what threats are faced by human beings on the earth? In fact, the threats facing humanity are multifaceted and have different levels, but they all need to be taken seriously. Let's talk about it and learn more about the planet.

01, it is not difficult to find that artificial intelligence replaces human beings, and now science and technology are becoming more and more developed, and many fields have also achieved intelligence. Many companies have even adopted robots, and even robots are used to operate on patients, which has to be admired for the development of technology.

But some scientists believe that robots will have the same storage capacity and processing speed as human brains, and if they are smart enough, they could even replace human thinking entirely. It sounds scary, but when the robot reaches a certain level of intelligence, it will definitely pose a threat to humans.

02, Chemical hazards Judging from some professional reports, the damage caused by human beings to the earth is great, with more than 250 billion tons of chemical substances emitted every year. These chemicals are not only harmful to the earth, but also directly to our bodies, after all, humans are born in this environment.

With the development of science and technology, the danger of chemical substances may escalate, which is really scary to think about. Therefore, people must know how to protect the earth, not only care about the immediate interests, so that the gains outweigh the losses! Things like industrial wastewater and harmful gases are terrible, so the state needs to control them.

03, the gap between the rich and the poor.

While the gap between rich and poor has always existed, it has become wider, with many poor people living and working at the lowest end. While most of the rich don't work, some scientists have already imagined that in the future robots will be mass-produced and integrated into our lives.

Then many poor people, that is, people who live at the bottom, are easy to lose their jobs, after all, machines are much more efficient than people, and they don't need to rest. As a result, the poor have no opportunity to make money, and the gap between the rich and the poor is increasing day by day.

Hearing this, I believe everyone has recognized the threats facing humanity, but in fact, this is only a part, and the threats are all over many small details. When the earth faces certain damage, then human beings are certainly inevitable, after all, human beings and the earth are related. It is our homeland, so let's be kind to our homeland and reduce the harm and damage to it.

When humanity realizes this problem, then the earth will get better and better!

On the earth, human beings are facing these threats, such as: First, we humans are facing global warming on the earth. Second, we are facing the threat of the virus. Third, we are facing melting glaciers and rising sea levels due to warming weather.

There are roughly four types: the inequality caused by genes, the invasion of more and more viruses and bacteria, the loss caused by the production of high-tech **, and the serious trend of global warming that has led to the extremeization of the earth's environment. Every threat is a matter of great concern to scientists right now.

At present, the main existential threat facing mankind is environmental degradation, which is mainly manifested in global warming. There are also hazards such as ocean acidification, ozone thinning, freshwater deficiency, bioextinction, nitrogen and phosphorus cycling, lack of land for the greenhouse effect, aerosol concentrations, chemical pollution, etc.

1 Air pollution, 2 Water pollution, 3 Population growth crisis, 4 Threat of war, 6 Mass loss of biological species, 7 Greenhouse effect, 8 Natural disasters, 9 Virus infection.

1.Depletion of natural resources. Non-renewable resources such as coal, oil and natural gas are used less and less, and if human beings cannot develop effective new energy alternatives, then the lack of resources will greatly limit the development of human society, 2

Novel epidemics. There are too many viruses on the earth, sealed in the corners that people have not set foot in, and there is no vaccine for human society to deal with such viruses, whenever a new virus appears, it will pose a major threat to human survival, such as SARS virus, new coronavirus, etc.

3.Nuclear war broke out. It will take hundreds of years for the ground to be restored after being contaminated by nuclear **, and if nuclear ** is used on a large scale, it will greatly compress the already small living space of human beings.

4.An asteroid hits the Earth. Because the asteroid hit the earth and the dinosaurs became extinct, and the current science has not yet enabled the earthlings to enter the era of space migration, the impact of the asteroid is undoubtedly a catastrophe for life on the earth.

Humans do not pose a threat to the planet. Humanity's excessive pursuit of materialism. It can only be that the earth's surface environment is becoming more and more conducive to the survival of human beings themselves, and of course it will affect other living things. But the earth itself, there will be no problems. Biological systems are only appendages of the earth.

But what man created.

Something that conflicts with the natural environment.

It is harmful to the ecological environment on the earth.

Such as. Ecological damage.

Ecological damage. It is the harm to the ecological environment caused by the intelligence and behavior acquired by human evolution.

Since the advent of the Cenozoic generation of human-like creatures.

It is constantly preying on the living space of Paleozoic humans.

It will lead to war, which will implicate damage to the ecological environment.

Like a fire burning the Seventh Army.

Vegetation and land and other animals were also burned.

If. This is not considered the destruction of the ecological environment.

So. When a cold weapon evolves into a hot weapon.

The heat energy released is the one that destroys the surname.

It is also unacceptable for the ecological environment.

The destruction of production and life.

Humans overexploit land to meet their food needs.

Can cause desertification.

Industrial production is the most harmful to the planet.

Mining of minerals. It can endanger geological faults.

Heat is generated in addition to natural thermal energy.

It accelerates the evaporation of water from Earth.

It will lead to the loss of the growth rate of the earth's mass.

Thus hastening the disintegration of the planet.

Impact on the solar system.

The earth is under the laws of nature.

Even if human beings are not excessively harmful.

Its natural evaporation decomposes water sources.

It will also eventually lead to the destruction of the earth's ecological environment.

When human scientific and technological activities cause the loss of the earth's essential objects.

It will greatly change the natural rules of the earth and change the mass of the reduction.

Such as. For the development of minerals on the planet.

In addition to the process of oxidative decomposition loses mass of non-renewable.

The greatest mass loss is caused by the transfer of matter from the Earth.

Such as artificial earth satellites.

Humans are frantically sending large quantities of steel and other minerals into space.

This will lead to a sharp drop in the mass of the earth.

As a result, the centrifugal force of the earth decreases and the orbit of the orbit is significantly changed.

So. There is no bottom line for human festivals.

The harm to the planet is endless.

Friend, when you are living a happy and peaceful life, have you ever thought that our living environment is deteriorating step by step? When you clean your beautiful yard, have you ever thought about the white garbage that can be found everywhere around us? When you are fully enjoying the warm spring sunshine, have you ever thought that the sky over Antarctica has lost the protection of the ozone layer?

Once upon a time, the sky was so blue, the rivers were so clear, the forests were so dense, and while the natural environment gave us the enjoyment of beauty, human beings were also asking for things that they did not deserve from nature... …In 1998, the Yangtze River, Nenjiang River, Songhua River and other great rivers flowing through the land of China hid the gentle and beautiful smiles of the past, revealing a fierce and terrifying hideousness. The raging torrential rain swept across the south and north of China, and everywhere the torrential rain went, the rivers and lakes swelled and the river ditches overflowed. The roaring river swept up flood peaks again and again, swallowing up villages, fertile fields, cities and counties, factories, and schools.

The raging flood is like a merciless devil's claw, tens of millions of acres of fertile land have been flooded, and millions of people have lost their homes. The mighty river is creating dangers big and small every day. The violent bake demon brews dangers big and small.

The violent devil brews tragedies big and small. Only by giving water a home and giving all living beings a home, will human beings have their own homes, and human beings will have their own homes; Only by giving water a way to live and all living beings a way to live can human beings survive and develop. If ancient science has not yet developed, and the people of the earth have certain limitations in their understanding of ecology, and have done stupid things that only care about the present and ignore the long-term, then what about modern people?

In the 30 years from 1950 to 1980, more than half of the world's forests were destroyed, with half of Africa's forests becoming barren. Green vegetation is the "quilt of life" given by nature to human beings. However, after the world entered the 20th century 50 years later, the green environment on which people and animals depend for survival has been destroyed, the green vegetation is declining, the global soil loss is now increasing to 25.4 billion tons per year, and the desertified soil is expanding rapidly at a rate of 5-70,000 square kilometers per year.

The earth is becoming more and more crowded, and with it, environmental pollution is changing day by day, and resources are becoming scarce. In the pursuit of happiness, people have to look back at the relationship between man and nature, and sign a covenant with nature for sustainable development. All of this reminds us that:

Environmental protection is imminent! We live on the same land, we share a common homeland and protect our environment. The earth is looking forward to green, the rivers are looking forward to green, the waterfowl are looking forward to green, and the flowers are looking forward to green.

Dripping water into a river, accumulating soil into a mountain, protecting the environment, starting from you and me. Awaken the "green heart" and implement the "green plan". Carry out "green action", strive to be a "green builder, and create a "green new century"!

Harm. 1.Deforestation leads to soil erosion.

2.Huge amounts of carbon dioxide are emitted, contributing to global warming.

3.Littering and indiscriminate exhaust gas pollute rivers.

4.Indiscriminate killing of animals makes the ecosystem unbalanced.

Measures:1Instead of deforestation, plant more trees.

2.Moderate carbon dioxide emissions and use clean energy.

3.Do not litter, protect the river clean, industrial waste gas should be discharged after reaching the standard.

4.Do not kill animals and live in harmony with them.

The above listed four measures are just a corner of the round table, not only we want to be practical, but also the department should strengthen management, only when everyone is united, the earth's tomorrow will be better!

1. Land pollution: The cleaning of garbage has become an important problem in major cities, and many of the tens of millions of tons of garbage every day cannot be incinerated or corrupted, such as plastic, rubber, glass and other human enemies.

2. Marine pollution: mainly leakage from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions from mines; They pollute most of the ocean's lakes and cause damage not only to marine life, but also to birds and humans who can be poisoned by eating them.

3. Air pollution: refers to the concentration of pollutants in the air reaching or exceeding the harmful level, resulting in the destruction of the ecosystem and the normal survival and development of human beings, and causing harm to people and organisms. This is the most direct and serious disease, mainly from carbon monoxide and hydrogen sulfide emitted from factories, automobiles, power plants, etc., and people are infected with respiratory or visual diseases due to exposure to these dirty air every day.

Human nuclear tests have emitted pollutants into nature, destroying almost all ecosystems such as forests, grasslands, rivers, lakes, and oceans, and polluting air, water, and soil.

The earth is not only polluted by exhaust gases but also by thoughts, which are energy, and energy has always played a role in the universe. For thousands of years, thousands of negative people have sent out negative thoughts, imposing it on the earth, and that's why humanity has bad weather, floods, volcanic eruptions.

Soil destruction Arable land is now decreasing in fertility in 110 countries. In Africa, Asia and Latin America, soil erosion is severe due to the loss of forest cover, overexploitation of cultivated land and overgrazing of pastures.

Air pollution. The problem of air pollution is also the problem of acid rain. Previously, the problem of acid rain had only concerned the older industrialized countries of Europe and North America. But now, parts of Asia and Latin America, where the economy is booming, are also being hit by acid rain.

Air pollution also disrupts the functioning of ecosystems, accelerates the damage to homes, and leads to climate variability.

Fresh water is threatened.

In developing countries, 80% of 90% of diseases and more than 1 3 deaths are related to bacterial infections or chemically contaminated water. Today, 10,000 men, women and children die every day from water-borne diseases.

climate change and energy waste.

The greenhouse effect is a serious threat to humanity as a whole. According to a representative group of 2,500 experts, sea levels will rise, and rising temperatures will have serious impacts on agriculture and ecosystems.

Reduced forest area.

Over the past few hundred years, temperate countries have lost most of their forests. In recent decades, the decline in forest area in tropical countries has also been severe. At the current rate of forest loss, in 40 years' time, forests will be inaccessible in some Southeast Asian countries.

Reduction in biological variety.

Due to urbanization, agricultural development, deforestation and environmental pollution, the natural areas where organisms exist are becoming smaller and smaller, which has led to the extinction of thousands of species.

Chemical contamination. Millions of compounds from industry are found in the air, soil, water, plants, animals, and the human body. Even the ice caps, which are the last large natural ecosystems on Earth, are polluted.

Chaotic urbanization.

The deterioration of the population and the deterioration of agricultural land and poverty have prompted millions of peasants in the Third World to leave the countryside and gather in the slums of the big cities. With the advent of the new century, living conditions in some large cities will deteriorate further.

Overexploitation of the oceans and pollution of coastal strips.

As a result of overfishing, the ocean's fishery resources are dwindling at a frightening rate. As a result, many poor people who depend on seafood protein for their livelihoods are at risk of hunger.

The polar ozone layer hole.

Every spring, an ozone layer hole is formed over the Earth's two polar regions, with the loss of the ozone layer in the Arctic by 20 30 and the ozone layer in the Antarctic by more than 50.