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What will happen to the world with global warming and rising temperatures?

Ten Terrible Consequences of Global Warming

1, sea level rise

The hot weather on the earth does not mean that Miami's lifestyle will be in line with Africa's, but it does lead to the rise of sea level. How does high temperature weather cause sea level rise? It turns out that too high a temperature will cause icebergs to melt. The continuous melting of sea ice and polar ice sheets has increased the amount of water in the ocean, leading to the rise of sea level.

If the beach is flooded, people will lose a lot of fun. At present, many cities like Miami in the world are facing the threat of rising sea level.

Scientists can measure the impact of the melting of the Greenland ice sheet: the flow of the Colorado River has increased sixfold. Scientists predict that if the ice shelves in Greenland and Antarctica continue to melt, the sea level will be 6 meters higher than it is now by 2 100. This will inundate many Indonesian tropical islands and low-lying areas, as well as Miami, new york City, Manhattan and Bangladesh.

2. Melting glaciers

No special equipment is needed to observe whether glaciers are melting. After the frozen soil that was originally covered on the tundra surface melted due to the increase of surface temperature, vegetation is now growing on it.

Due to the rising surface temperature, Montana's National Glacier Park has lost many magnificent scenery.

In this century, the glaciers in Montana National Park have been seriously reduced. In addition, Himalayan glaciers are the main source of Ganges water. The Ganges provides drinking water and irrigation water for 500 million people. It is said that the annual water consumption is decreasing at the rate of 37 meters.

3. The heat wave is coming

In 2003, the deadly heat wave that swept across Europe killed about 35,000 people, which may be a precursor to the hot summer trend that scientists began to track at the beginning of the 20th century.

Heat wave will not only inhibit some functions of human body, but also cause death. The picture shows a man trying to cool down by pouring water from a bottle on the street of new york hit by a heat wave in 2008.

In the last 50 years to 100, the frequency of extremely hot heat waves is two to four times higher than usual. It is predicted that it will be higher than 100 times in the next 40 years. Experts predict that the continuous heat wave will lead to an increase in the frequency of fires and related diseases and an increase in the average temperature of the earth.

4. Storm and flood

Experts use climate models to predict that global temperature rise will have an impact on precipitation. But the increasingly frequent mega-storms really don't want to be seen by anyone: in just 30 years, the frequency of strong hurricanes of magnitude 4 to 5 has almost doubled.

Warm sea water increases the possibility of strong storms. In July 2008, Hurricane Dolly swept across the border between Texas and Mexico.

The warm sea water provided strength for the hurricane. Scientists relate the temperature of the ocean and atmosphere to the possibility of strong storms. In the past few years, the United States and Britain have been hit by super storms and floods, many people have died and property losses have reached hundreds of millions of dollars. From 1905 to 2005, the frequency of hurricanes increased steadily. Between 1905 and 1930, there are about 3.5 hurricanes every year on average; 193 1 year to 1994, with an average of about 5. 1 time per year; Between 1995 and 2005, there were 8.4 hurricanes every year on average.

5. Drought

When some parts of the world are hit by storms and floods, others are threatened by drought. With the climate warming, experts estimate that the drought may increase by at least 66%, which will lead to the shrinking of water supply and the decline of crop production quality. This puts global food production and supply in danger, and people are increasingly at risk of being threatened by hunger.

The worldwide drought exposed the shortage of food in rural areas. The picture shows the drought in a small village in the northeast of Nairobi.

Today, India, Pakistan and sub-Saharan Africa are suffering from drought. Experts predict that precipitation may continue to decrease in the coming decades. It is estimated that the situation at that time will be terrible. According to IPCC forecast, by 2020, 75-25 million Africans may encounter water shortage, and the agricultural output of the African continent will drop by 50%.

6. illness

Depending on where you live, you can use different insect repellents to deal with West Nile virus or Lyme disease. But when was the last time you worried that you might be infected with dengue fever?

Some mosquitoes photographed in California may carry West Nile virus.

With the hot weather of floods and droughts, viruses have created an excellent growth environment, and mosquitoes, ticks, mice and other organisms carrying diseases are becoming more and more prosperous. The World Health Organization claims that new or recurrent viruses are spreading rapidly, they will live in different countries, and some tropical diseases may also occur in cold places. For example, mosquitoes infected Canadians with West Nile virus.

Every year, about 654.38 million+500,000 people die from diseases related to climate change, and all respiratory problems caused by heat-related heart disease and malaria are increasing [Washington Post]. What is the relationship between hay fever and global warming? This is because the warming of the temperature increases the generation of smog, increases the cases of asthma attacks, further encourages the growth of weeds, and lays a curse for allergic patients.

7. Economic issues

As the temperature rises, the cost of making up for the losses caused by climate change is increasing. Severe storms and floods have caused billions of dollars in agricultural losses, and at the same time, a lot of money is needed to treat infectious diseases and prevent the spread of diseases. Extreme weather will also cause an extremely serious economic downturn. In 2005, a record-breaking hurricane stayed in Louisiana for several months, resulting in economic income loss of about 15% of total income and property loss of at least13.5 billion US dollars.

In addition to the casualties caused by Hurricane Katrina, New Orleans and Louisiana are also facing billions of dollars in economic losses.

Economic factors permeate almost every aspect of human life. With the increase in insurance premiums paid for health and families, consumers are facing rising food and energy costs. Governments around the world are also suffering from the consequences of poor tourism and falling industrial profits: soaring energy costs, demand for food and water, post-disaster clean-up and tense border situation.

Ignoring the problem itself will not make it disappear. Recently, a study by Tufts University's Institute of Global Development and Environment shows that if we do nothing in the face of the crisis of global warming, mankind will get a bill of $2 trillion in 2 100.

8. Conflict and war

The reduction of high-quality food, water and land will increase the hidden dangers threatening global security, which will lead to conflicts and wars.

Security experts say that the conflict in Darfur, Sudan shows that although global warming is not the only cause of the crisis, its root cause can be traced back to the impact of climate change, especially the reduction of existing natural resources. Violence in Darfur broke out during a long drought, with little or no precipitation for 20 years, while the temperature in the nearby Indian Ocean kept rising.

On the one hand, the conflict in Darfur comes from the tension caused by global warming.

Scientists and military scientists are analyzing the consequences of climate change, such as unstable food supply will lead to wars and conflicts, which shows that there is a correlation between violence and ecological crisis. Countries lacking in water resources and food have thus laid a security risk, and regional turmoil, panic and aggression may occur.

9. Loss of biodiversity

Global temperature rise is more and more harmful to the survival of species. If the annual average temperature keeps rising at the rate of 1. 1 to 6.4 degrees Celsius, about 30% of the existing plants and animals will face the threat of extinction by 2050. These species will be extinct due to desertification, deforestation, ocean warming and inability to adapt to the climate. Wildlife researchers have noticed more flexible migration. Animals migrate from the far north to the far south, looking for their habitat. For example, the red fox, once a resident of North America, now lives in the Arctic.

The habitat of red fox has been affected by global warming temperature.

Humans are not immune. Desertification and sea level rise threaten human habitat. When plants and animals lose their ability to adapt to climate change, there will be no food, fuel and income for human beings.

10, destroying the ecosystem

Climate change and the increase of carbon dioxide are a test of human ecosystem, which threatens the living conditions that affect human survival, such as fresh water, clean air, fuel and energy, food and medicine, rather than lifestyle.

Coral bleaching is only one of the tangible impacts of global warming on ecosystems.

There is evidence that climate change has an impact on natural ecosystems, which means that any change in the world is closely related to changes in land, water and biological life. By observing bleached and dead coral reefs, scientists found that this was caused by ocean warming. At the same time, some plants drift and animals change their habitats, which is also caused by the rising temperature of air and water or the melting of ice sheets.

Based on different temperatures, scientists' computer models predicted different degrees of floods, droughts, forest fires and ocean acidification, which eventually led to the collapse of the global ecosystem, and all terrestrial and marine ecosystems were spared.

Predictions of famine, war and death describe the future of the earth after climate change. Scientists study the impact of these changes on the earth, not to predict the future, but to help human beings reduce behaviors that may lead to climate change. If we know and understand this problem, take appropriate actions to improve energy efficiency, use sustainable energy and other green lifestyles, we can have a certain impact on the process of climate change.

Reference: Baidu Encyclopedia