Junk food is being blamed for causes many undesirable problems to children. It is referred to any food that is low nutritional value such as instant noodles, potato chips and chocolate bars. Takeaway foods, pre-packaging meals and sugary snack food are also included as junk food (Lin 2005). In response to the problem, I strongly believe that the sale of junk food should be banned.

The first reason why junk food should be banned is because it causes behavioral problems in children. Most of them contain chemical additives to enhance flavor and colour and to increase shelf life. Furthermore, junk food has a lot of flavor as it is typically high in fat, salt, or sugar and commonly containing synthetic flavor enhancer. These additives have been shown to cause the behavioral problems such as hyperactivity and pour concentration. Based on a research, it is proven that junk foods are often loaded with chemical additives which can trigger behavioral problems (Mary 2005).

Secondly, junk food is to be said as the major contributor to litter problems. The fast food packaging causes litter problems which is a safety and health hazard, increases cleaning costs and reflects bad image to our communities (Jemma 2005). Cans, crisp packets, cartons and plastic container are among of them and are everywhere (Jack 2005). By reducing the sale of junk foods, litter problem in schools can be redressed (Jemma 2005) as many junk foods are sold in school canteen. As the result of the reduction, the school grounds man doesn’t have to spend so long cleaning and has more time to spend on maintenance projects that benefit the school (Jack 2005).

Lastly, junk foods need to be banned because they are unhealthy diet because they are lack in nutritional value. The nutritional value of food eaten by Australian children has been falling progressively over the past 30 years and this can be linked directly to the increased availability and consumption of junk food (Lin 2005). Examples of the junk food that is low in nutritional value are biscuits, cookies, chips, confectionery, hamburgers, instant noodles and soft drinks (Health Foundation 2005). These unhealthy diets can cause further problems to children that are contributing to youth weight gain and childhood obesity (Lin 2005).

As a conclusion, the consumption of junk foods by children has many side effects and has to be reduced. These unhealthy diets causes’ health and behavioral problems to children as well as causes litter problems to community. The blame is frequently directed at junk food. Therefore, the sale of junk food should be banned.

Topic: What are the potential effects of global warming in terms of climate change and how can they be arrested?

Global warming is a serious ecological issue that has many negative effects upon our environment. Based on the film An Inconvenient Truth (2007), global warming is the rising of average temperature of Earth’s atmosphere due to greenhouse gases that trap heat in the atmosphere. The greenhouse effect consists of gases such as carbon dioxide, methane, nitrous oxide, and water vapor insulating the Earth’s surface and helping it maintain warm temperatures. However since there is so much carbon dioxide filling the air, the Earth atmosphere absorbs almost all of the suns emission causing the temperature to increase and consequently causes global warming. There are various of consequences that have been arised in terms of climate change due to global warming.

The increases of carbon dioxide level each year is one of the factors that cause global warming. When there is more carbon dioxide in the atmosphere, the greenhouse effect will be worsening causes the global temperature to rise. As the result, permafrost thawing, the glaciers and ice sheets around the world are melting everyday and this make the sea level rises. Arctic and Antarctica, the two regions of the world experience faster impacts from global warming. According to Chris Woodford (2006), currently, the world's sea levels are rising at 3cm (just over 1 inch) per decade.

Another affect of global warming is the increase in the ocean temperatures. When the oceans get warmer, stronger storms like hurricanes, typhoon and tornadoes will be formed because as the water temperature rises, the wind velocity and the moisture content also increases. Hurricane Jeanne, Hurricane Frances and Hurricane Katrina were among of them that killed a lot people and caused billions of dollars worth of damage (An Inconvenient Truth 2007). The rising temperatures will also lead to frequent heat waves. Same effect goes to the sea level, as oceans are heated, ocean’s water molecule will expand and this makes the sea level rise as the water takes up more volume. Holli Riebeek (2007) mentioned that this could leave low-lying nations awash in seawater.

Besides that, another effect of global warming is it causes more precipitation, often coming in big storms. Increasing temperatures tend to increase evaporation which leads to more precipitation. As average global temperatures have risen, average global precipitation has also increased. The evaporation off the oceans puts all the moisture up in the atmosphere and when storm conditions trigger the downpour, more of it falls down and may cause flood. It was stated in Mumbai, India on July 2005, 37 inches of rain in 24 hours the largest downpour that any city in India has ever received have caused a huge flood that killed almost 1000 people (An Inconvenient Truth 2007).

Global warming not only causes more flooding but also more droughts. One of the reasons of this is because global warming not only causes more precipitation worldwide but it also relocates the precipitation. Focus of all is on the Africa side where unbelievable tragedies have been unfolded there. Darfur and Niger were among of those tragedies and one of the factors that have been compounding them is the lack of rainfall and the increasing drought. Another factor of it is because global warming creates more evaporation off the oceans to seed the clouds but the problem comes when it sucks moisture out of the soil causing soil evaporation increases dramatically with higher temperatures (An Inconvenient Truth 2007).

There are many ways to overcome the problems caused by global warming. To cut off the effect of global warming, we can start by cutting down the emissions of carbon dioxide to the atmosphere. All countries should take part in the international climate-change treaty called the Kyoto Protocol so that emissions of carbon dioxide can be redressed. While for individuals, we can use more efficient electricity appliances such as replacing the incandescent lamps in our home and use energy-saving fluorescent lamps instead to reduce the global warming pollution that would otherwise be put into the atmosphere (Woodford 2006). If we use other end-use efficiency, higher mileage cars, environmental-friendly cars, renewable energy and technology, and carbon capture and sequestration, more and more global warming pollution can be reduced.

In general, global warming should be viewed as a serious problem. Global leaders and individuals must be concerned and step forward to solve this problem before it’s getting worse. If we cannot mitigate the potential effects now, regardless of the cost, then all of the species survival including us will be directly threatened by the consequences of our actions. We need to find a way to raise our living standards without destroying our own habitat.

Topic: What are the potential effects of global warming in terms of climate change and how can they be arrested?

Global warming is a serious ecological issue that has many negative effects upon our environment. Based on the film An Inconvenient Truth (2007), global warming is the rising of average temperature of Earth’s atmosphere due to greenhouse gases that trap heat in the atmosphere. The greenhouse effect consists of gases such as carbon dioxide, methane, nitrous oxide, and water vapor insulating the Earth’s surface and helping it maintain warm temperatures. However since there is so much carbon dioxide filling the air, the Earth atmosphere absorbs almost all of the suns emission causing the temperature to increase and consequently causes global warming.

The increases of carbon dioxide level each year is one of the factors that cause global warming. When there is more carbon dioxide in the atmosphere, the greenhouse effect will be worsening causes the global temperature to rise. As the result, permafrost thawing, the glaciers and ice sheets around the world are melting everyday and this make the sea level rises. Arctic and Antarctica, the two regions of the world experience faster impacts from global warming. According to Chris Woodford (2006), currently, the world's sea levels are rising at 3cm (just over 1 inch) per decade.

Another affect of global warming is the increase in the ocean temperatures. When the oceans get warmer, stronger storms like hurricanes, typhoon and tornadoes will be formed because as the water temperature rises, the wind velocity and the moisture content also increases. Hurricane Jeanne, Hurricane Frances and Hurricane Katrina were among of them that killed a lot people and caused billions of dollars worth of damage (An Inconvenient Truth 2007). The rising temperatures will also lead to frequent heat waves. Same effect goes to the sea level, as oceans are heated, ocean’s water molecule will expand and this makes the sea level rise as the water takes up more volume. Holli Riebeek (2007) mentioned that this could leave low-lying nations awash in seawater.

Besides that, another effect of global warming is it causes more precipitation, often coming in big storms. Increasing temperatures tend to increase evaporation which leads to more precipitation. As average global temperatures have risen, average global precipitation has also increased. The evaporation off the oceans puts all the moisture up in the atmosphere and when storm conditions trigger the downpour, more of it falls down and may cause flood. It was stated in Mumbai, India on July 2005, 37 inches of rain in 24 hours the largest downpour that any city in India has ever received have caused a huge flood that killed almost 1000 people (An Inconvenient Truth 2007).

Global warming not only causes more flooding but also more droughts. One of the reasons of this is because global warming not only causes more precipitation worldwide but it also relocates the precipitation. Focus of all is on the Africa side where unbelievable tragedies have been unfolded there. Darfur and Niger were among of those tragedies and one of the factors that have been compounding them is the lack of rainfall and the increasing drought. Another factor of it is because global warming creates more evaporation off the oceans to seed the clouds but the problem comes when it sucks moisture out of the soil causing soil evaporation increases dramatically with higher temperatures (An Inconvenient Truth 2007).

There are many ways to overcome the problems caused by global warming. To cut off the effect of global warming, we can start by cutting down the emissions of carbon dioxide to the atmosphere. All countries should take part in the international climate-change treaty called the Kyoto Protocol so that emissions of carbon dioxide can be redressed. While for individuals, we can use more efficient electricity appliances such as replacing the incandescent lamps in our home and use energy-saving fluorescent lamps instead to reduce the global warming pollution that would otherwise be put into the atmosphere (Woodford 2006). If we use other end-use efficiency, higher mileage cars, environmental-friendly cars, renewable energy and technology, and carbon capture and sequestration, more and more global warming pollution can be reduced.

In general, global warming should be viewed as a serious problem. Global leaders and individuals must be concerned and step forward to solve this problem before it’s getting worse. If we cannot mitigate the potential effects now, regardless of the cost, then all of the species survival including us will be directly threatened by the consequences of our actions. We need to find a way to raise our living standards without destroying our own habitat.