What are the effects of global warming on humans?

Global warming. Harm to humans.

1.Rising temperatures provide kinetic energy to the air and the ocean, forming super-sized typhoons, tsunamis and other disasters. Every year, more and more disasters are faced, and typhoons and tsunamis can also damage buildings, threaten human life, and bring mudslides.

and landslides, which pose huge hidden dangers to human beings.

2.Rising temperatures will also lead to significant reductions in food and feed production in the interior, leading to food and meat shortages.

3.As the temperature rises, the melting icebergs do not accumulate as fast as they melt, so the icebergs do not accumulate, and we have no fresh water to drink.

4.Rising temperatures have made the natural food chain.

Gradually breaking. 5.Carbon dioxide in the atmosphere.

will also lead to an increase in carbon dioxide levels in the oceans, which will carbonate the oceans and kill microorganisms, so that the marine food chain will be broken, and marine life will die in large numbers.

6.Rising temperatures also make a lot of invertebrates.

Awakening from hibernation, these insects then miss the opportunity to hunt and die in large numbers, eating large quantities of forests and crops due to the insects waking up early.

7.At the same time, the rise in temperature will also affect the human body's functions, the probability of illness will be higher and higher, and various physiological diseases will also spread rapidly.

8.As the temperature rises, glaciers melt and sea levels rise, causing coastal tidal wetlands and mangrove forests.

and the loss of ecological groups such as coral reefs, coastal erosion, seawater intrusion into coastal underground freshwater layers, and salinization of coastal land, etc., resulting in the imbalance of the natural ecological environment of coasts, estuaries, and bays, and bringing disasters to the ecological environment of the coastal zone.

9.The area of water has increased. Water is also evaporating more, the rainy season is longer, and floods are becoming more frequent. Increased exposure to flooding, increased severity and severity of storm impacts, and shortened dam lifespans.

The 1999-2019 global temperature change poor countries were vulnerable before the climate warmed because they were already too weak. The slightest negative impact from the outside world is a heavy burden. For example, a warming climate will make the middle and low latitudes of Africa arid due to intense evaporation.

Researchers at the University of Leeds in the United Kingdom, among others, believe that a warming climate will reduce banana and maize yields by 30 percent and beans by 60 percent in sub-Saharan Africa, both staple foods or important incomes**. In the next 30 years, sub-Saharan Africa's food**, farmland and water resources will be more threatened by climate change. A warming climate will also lead to an increase in extreme weather.

Take typhoons, for example. Developed countries can afford to build safer and stronger homes (e.g., in developed countries such as Japan and New Zealand, which can withstand Level 9**), have better infrastructure and rescue reserves such as search and rescue teams, emergency equipment, hospitals, etc., and have enough savings to cope with disaster reconstruction. But poor countries do not have the capacity to withstand natural disasters.

For example, in March 2019, Hurricane Idai killed more than 1,000 people in Mozambique. In the hardest-hit port of Beira, almost all communication lines have been destroyed, hospitals have been badly damaged, and foreign aid has to be relied upon. Regions such as Bangladesh and Palau lose 2% of their GDP each typhoon season to fight typhoons and provide relief to victims, a figure that could expand to 5% in a more volatile global climate.

Global warming has caused a large number of glaciers to melt gradually, causing sea levels to rise, threatening the lives of people in coastal areas; The cold season will be shortened, and the warm and hot seasons will be extended; This has led to an increase in extreme weather such as droughts and typhoons; This leads to an increase in the concentration of ozone in the low air, which can damage people's lung tissues and cause some lung diseases such as asthma.

Global climate warming also has an impact on people's bodies, mainly in the rise in temperature, which has an impact on the climate, which will cause the melting of snow-capped mountains and the rise of sea levels.

1. The Arctic ice sheet is melting.

As the seasons change, the ice sheet melts and solidifies. But the disappearance of permafrost is a much longer process. The coastal lands of the polar regions are under threat due to a number of factors.

Rising global temperatures have melted mud-rich permafrost sediments, increased the intensity of ocean storms, washed sediments with waves, and caused floods that have eroded large swaths of land. In **, the vanishing coastline of the Pofort Sea in Alaska shows the effects of climate change.

2. Chernobyl nuclear power plant**, leakage.

The largest human-caused nuclear catastrophe occurred in 1968 in Chernobyl, Ukraine. At about one o'clock in the morning on April 26, a reactor occurred**. Along with the flames and nuclear leakage, 50 people died on the spot, thousands of people developed cancer, and all died after that.

The real catastrophe is unfolding in Chernobyl. The radiation spread far away, polluting the air, food, and groundwater, affecting locals for decades. Now the number of nuclear power plants in the United States is more than 60, and many have multiple reactors.

3. The Brazilian Amazon rainforest has been severely damaged by human deforestation.

Deforestation of the Brazilian Amazon rainforest has risen at an alarming rate over the past decade. Ranchers, ranchers and loggers destroy 10,088 square miles of rainforest each year, which is the size of Hampshire, England. More than 50% of the world's wildlife and 40% of the world's oxygen come from the Amazon.

4. Developed countries carry out industrial mining in developing countries.

Both developed and developing countries rely on the mining of rare metals to boost their economies. But there can be a significant environmental cost. People dig pits above ground to extract the minerals they need, and soil erosion affects the surface and disrupts the ecological balance.

The ecology of the mining area is difficult to recover. For example, India's Sukendar Valley, which has 95% of India's chromite reserves, has turned it into one of the most polluted places in the world.

5. Overfishing.

The variety of fish that humans have eaten over the past two decades has actually declined. Rising demand and declining demand have led to the complete extinction of bluefin tuna and cod in the North Atlantic and Mediterranean.

The document documenting overfishing in 2009 was called "The End". In addition to the regret that fish can no longer be cooked, the rupture of the chain of important marine life will affect the survival of human beings. The health and continued development of the ocean is a major driver of the world's climate, and it is the foundation of both marine and terrestrial food**.

Sea level rises.

for agricultural production; Crop yields will decrease at lower latitudes, while crop yields are likely to increase at higher latitudes.

It will affect the whole water cycle, which may increase evaporation, change the regional precipitation and precipitation distribution pattern, increase the occurrence of extreme precipitation events, and lead to the increase in the frequency and intensity of drought and flood disasters, as well as changes in surface runoff. With the decrease of runoff and the increase of evaporation, global warming will exacerbate the instability of water resources and the contradiction between supply and demand.

Scientists point out that warming above Celsius means that people, wildlife and ecosystems are all likely to suffer more severe consequences from climate change. Preventing global warming from exceeding degrees Celsius requires us to halve global carbon emissions by 2030 and reach net zero emissions by 2050. Currently, global temperatures are already about Celsius above pre-industrial levels.

The last four decades have seen warmer temperatures than any decade since 1850. Just this year, flooding caused by torrential rains in western Europe killed hundreds. Record-breaking heat in the Pacific Northwest also led to hundreds of deaths.

Greenland's glaciers are melting on a massive scale. Wildfires raged in the Mediterranean and Siberia. Parts of Brazil have been hit by an unprecedented drought.

A global temperature of 2 degrees Celsius would destroy at least 70 percent of coral reefs, but more than 99 percent of coral reefs would die if the temperature rises by 2 degrees Celsius. This is a devastating blow to fish schools that rely on corals for feeding and habitat. A global warming of 2 degrees Celsius will also increase the impact on food production.

Global warming is causing widespread growth of mosquitoes carrying malaria and dengue viruses. A warming of 2 degrees Celsius would cause more insects and animals to lose most of their habitat and increase the risk of forest fires, which in turn would jeopardize wildlife.

We know that the glaciers are melting, the polar bears are about to lose their homes, and typhoons and tsunamis are becoming more and more frequent, and that's because the world is warming, let's take a look at what the dangers of global warming are!

1. Global warming will melt glaciers, and the world will have conflicts and wars due to water shortages. Today, global warming has caused icebergs to accumulate much less rapidly than they are melting, and some icebergs are no longer accumulating, cutting off local drinking water.

2. Affect the lives of coastal and island residents and put their livelihoods at risk. If the polar ice caps melt, economically developed and densely populated coastal areas will be swallowed by the sea, low-lying island countries such as the Maldives and the Seychelles will disappear from the ground, and many large coastal cities will also be implicated.

3. Global warming will make our ecological environment worse, and human health will also be affected. Extreme heat will become a health problem for people in the next century, becoming more frequent and more common, mainly reflected in increased morbidity and mortality.

4. The bottom food will disappear, causing the death of many organisms that feed on marine organisms. Global warming causes the ocean to rise, the bottom of the marine food chain to die, and then pollute the oceans, and so on.

To sum up, we can know that the harm of global warming is very great, so we should protect the environment, so as to reduce and slow down the trend of global warming. Calling Tong Block.

1. The impact of sea level rise In the past 100 years, the sea level has risen by 14 4 cm, and China has risen by 11 5 cm. The main reason for the rise in sea level is the thermal expansion of the seawater, which rises when the ocean warms. Global warming causes the melting of icebergs at the Earth's north and south poles, which is one of the main causes of sea level rise.

The direct impact of sea level rise is as follows: (1) Flooding of lowlands: Global warming has raised sea level, and people in coastal areas have to raise flood control levees to protect people's lives and property.

For example, the Netherlands, which is already very low, is facing an increasingly difficult situation due to rising sea levels. Many island countries in the Pacific, such as Tuvalu, have migrated due to rising sea levels.

2) Coastal erosion.

3) The salinity of surface water and groundwater increases, affecting urban water supply.

4) Rising groundwater levels.

5) Tourism is jeopardized. Beach tourism along the coast has always been popular. Rising sea levels have led to erosion of beaches and loss of scenery; Some coastal attractions have been wiped out, directly affecting tourism revenues.

6) Affect the livelihood of coastal and island residents. Coastal areas, which account for one-third of the world's population, are the most economically developed. Rising sea levels will wipe some economically developed island nations off the ground, as will some large coastal cities such as Shanghai and New York.

2. Effects on animals and plants.

Climate is the main determinant of the distribution of biological communities, and climate change can change the adaptability of different species in an area and the competitiveness of different populations within ecosystems. Plants and animals in nature, especially plant communities, may be doomed by adaptations that are unable to adapt to the rate of global warming. Past climate changes (e.g., ice ages) have caused the disappearance of many species, while some species have benefited from warming, such as the reduction of natural predators due to warming and the expansion of habitats due to warming.

3. Impact on agriculture.

The distribution of temperature and precipitation throughout the year is a major factor in determining which crops to grow, and changes in temperature and temperature-induced precipitation will affect the yield of food crops and the type of crop distribution. Climate change has led to major changes in the spatial (latitudinal) distribution of biozones and biomes, such as the growing of maize in Norway due to climate warming, and the subsequent disappearance of maize in Norway during interglacial periods. In addition to this, global warming will also exacerbate natural disasters such as high temperatures, heat waves, tropical storms, and tornadoes.

As a result, the stability and distribution of world food production will change significantly as global temperatures rise.

4. Impact on human health.

Human health depends on a good ecological environment, and global warming will be a major factor in human health in the next century. Extreme heat will become a more frequent and common health problem for people in the next century, mainly reflected in increased morbidity and mortality, especially some infectious diseases will endanger tropical regions and countries, and some diseases that currently occur mainly in tropical regions may spread to mid-latitude regions with climate warming.