What are some environmental concerns about the world?

Answer 1

The most major problems are pollution and global warming. Currently, our Earth is becoming more and more polluted. The rivers and seas are contaminated by our waste produced from factories, soil erosion, landfills etc. The greenery is slowly being lost. The air is sometimes foggy, filled with toxic gases and others. Due to the amount of carbon dioxide and other greenhouse gases being given out by us because of advancement in technology, the planet is gradually heating up, causing global warming. This will eventually lead to polar caps melting, depletion of species, sinking of islands and cities, flooding and many more undesirable consequences.

Answer 2

People are worried about the rise in the level of greenhouse gases in the atmosphere, which results in global warming. Global warming causes the rise in Earth's temperature. This will in turn melt the ice caps and cause a rise in sea level. Many low-lying cities will be flooded and small islands submerged in water. Ecology is also affected as the arctic life will experience a smaller habitat and a lack of food. Rise in temperatures will also cause them to die of heat.

Answer 3

An example is:

Pollution

Pollution is the release of harmful environmental contaminants, or the substances so released. Generally the process needs to result from human activity to be regarded as pollution. Even relatively benign products of human activity are liable to be regarded as pollution. The nitrogen oxides produced by industry are often referred to as pollution, for example, although the substances themselves are not harmful.

Pollution can take two major forms: local pollution and global pollution. In the past, only local pollution was thought to be a problem. For example, coal burning produces smoke, which in sufficient concentrations can be a health hazard. In recent decades, awareness has been rising that some forms of pollution pose a global problem.

Carbon dioxide emissions are sometimes referred to as pollution, on the basis that these emissions have led, or are leading, to raised levels of the gas in the atmosphere and, furthermore, to harmful changes in the Earth's climate.

There are nine basic types of environmental pollution, and each one has detrimental affects on wildlife, human habitation, and the quality of life in the affected area.

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Air Pollution

Air pollution is defined as any contamination of the atmosphere that disturbs the natural composition and chemistry of the air. This can be in the form of particulate matter such as dust or excessive gases like carbon dioxide or other vapors that cannot be effectively removed through natural cycles, such as the carbon cycle or the nitrogen cycle.

Air pollution comes from a wide variety of sources. Some of the most excessive sources include:

Vehicle or manufacturing exhaust

Forest fires, volcanic eruptions, dry soil erosion, and other natural sources

Building construction or demolition

Depending on the concentration of air pollutants, several effects can be noticed. Smog increases, higher rain acidity, crop depletion from inadequate oxygen, higher rates of Asthma, and global warming are all related to increased air pollution.

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Water Pollution

Water pollution involves any contaminated water, whether from chemical, particulate, or bacterial matter that degrades the water's quality and purity. Water pollution can occur in oceans, rivers, lakes, and underground reservoirs, and as different water sources flow together the pollution can spread.

Causes of water pollution include:

Increased sediment from soil erosion

Improper waste disposal and littering

Leaching of soil pollution into water supplies

Organic material decay in water supplies

The effects of water pollution include decreasing the quantity of drinkable water available, lowering water supplies for crop irrigation, and impacting fish and wildlife populations that require water of a certain purity for survival.

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Soil Pollution

Soil, or land pollution, is contamination of the soil that prevents natural growth and balance in the land whether it is used for cultivation, habitation, or a wildlife preserve. Some soil pollution, such as the creation of landfills, is deliberate, while much more is accidental and can have widespread effects.

Soil pollution sources include:

Hazardous waste and sewage spills

Non-sustainable farming practices, such as the heavy use of inorganic pesticides

Strip mining, deforestation, and other destructive practices

Household dumping and littering

Soil contamination can lead to poor growth and reduced crop yields, loss of wildlife habitat, water and visual pollution, soil erosion, and desertification.

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Noise Pollution

Noise pollution refers to undesirable levels of noises caused by human activity that disrupt the standard of living in the affected area. Noise pollution can come from:

Traffic

Airports

Railroads

Manufacturing plants

Construction or demolition

Concerts

Some noise pollution may be temporary while other sources are more permanent. Effects may include hearing loss, wildlife disturbances, and a general degradation of lifestyle.

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Radioactive Pollution

Radioactive pollution is one of the types of pollution that is rare but extremely detrimental, even deadly, when it occurs. Because of its intensity and the difficulty of reversing damage, there are strict government regulations to control radioactive pollution.

Sources of radioactive contamination include:

Nuclear power plant accidents or leakage

Improper nuclear waste disposal

Uranium mining operations

Radiation pollution can cause birth defects, cancer, sterilization, and other health problems for human and wildlife populations. It can also sterilize the soil and contribute to water and air pollution.

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Thermal Pollution

Thermal pollution is excess heat that creates undesirable effects over long periods of time. The earth has a natural thermal cycle, but excessive temperature increases can be considered a rare type of pollution with long term effects. Many types of thermal pollution are confined to areas near their source, but multiple sources can have wider impacts over a greater geographic area.

Thermal pollution may be caused by:

Power plants

Urban sprawl

Air pollution particulates that trap heat

Deforestation

Loss of temperature moderating water supplies

As temperatures increase, mild climatic changes may be observed, and wildlife populations may be unable to recover from swift changes.

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Light Pollution

Light pollution is the over illumination of an area that is considered obtrusive. Sources include:

Large cities

Billboards and advertising

Nighttime sporting events and other nighttime entertainment

Light pollution makes it impossible to see stars, therefore interfering with astronomical observation and personal enjoyment. If it is near residential areas, light pollution can also degrade the quality of life for residents.

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Visual Pollution

Visual pollution - eyesores - can be caused by other types of pollution or just by undesirable, unattractive views. It may lower the quality of life in certain areas, or could impact property values and personal enjoyment.

Sources of visual pollution include:

Power lines

Construction areas

Billboards and advertising

Neglected areas or objects such as polluted vacant fields or abandoned buildings

While visual pollution has few immediate health or environmental effects, the other types of pollution that cause an eyesore can have detrimental affects.

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Personal Pollution

Personal pollution is the contamination of one's body and lifestyle with detrimental actions. This may include:

Excessive smoking, drinking or drug abuse

Emotional or physical abuse

Poor living conditions and habits

Poor personal attitudes

In some cases, personal pollution may be inflicted by caregivers, while in other cases it is caused by voluntary actions. Taking positive steps in your life can help eliminate this and other types of pollution so you can lead a more productive, satisfying life.

Answer 4

There are many environmental problems in the world. For example, there is the problem of use of various plastics that are not biodegradable.

Answer 5

Earth s facing large number of problems. Floods, melting of glaciers etc.