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this article talks about if we are going to have carbon tax as the increasing of using resource such like fuel by the companies, and the companies made a lot of pollution, it give us a negative externality as a whole. all the people on earth has a bad effect by the pollution, increasing of the carbon is one of the thing companies made, in order to stop companies from keeping producing carbon, let's think about put the carbon tax.

i really like this article as it focuses on the fact of global warming. Also its a new point of view to stop Global warming which could be very effective as they would raise alot of money, to use in the further research of non polutent enegery sources. What they havent realised in this article that Methan has a ration 20:1 to carbon in the field of damage causing global warming and although you dont think there is a lot of methane in the world there is. Every decomposing organic material releases methane and just think about all those decomposing plant matter at the bottom of dams with a huge accumulation of methan waiting to be released.

i really like this article as it focuses on the fact of global warming. Also its a new point of view to stop Global warming which could be very effective as they would raise alot of money, to use in the further research of non polutent enegery sources. What they havent realised in this article that Methan has a ration 20:1 to carbon in the field of damage causing global warming and although you dont think there is a lot of methane in the world there is. Every decomposing organic material releases methane and just think about all those decomposing plant matter at the bottom of dams with a huge accumulation of methan waiting to be released.

I found this article very interesting, it relates to Green GDP. The Indian government is aiming to use natural resources, and fight global warming, India is one of the most affected countries due to global warming. India's stand in the fight against global warming will let them be in a better position on negotiations about cutting emissions by an average of 5 percent below 1990 levels by 2008-12 which take place in Denmark. India has no obligations to actually reduce emission as it is still a developing countries and as it says in the article it is a "proof of its sincerity in fighting climate change". The Indian governmen t will even consider their Green GDP as part of their economic growth. This won't be an easy challenge for India though due to millions of people living in poverty and having to burn fossil fuels so their lives improve.

A negative externality is a cost incurred by a comapny or a party that did not agree to whatever action caused the extra cost. This article discusses the negative externalities that we incur when we use fossil fuels etc. The cost of production and damage caused by the use of fossil fuels is not included in the price we pay for 1 gallon of gasoline. This is the negative externality. A lot of the government involvement in the private sectors is actually aimed at reducing such negative exteranlities concerned with environmental pollution. Several companies also try to reduce externalities by introducing policies. For example, SAP AG has policies that its employees cannot buy cars that have carbon emissions beyond a certain limit.

Your article is very interesting. In the end the writer talks about the oil spill in the Gulf of Mexico, two weeks ago or something like that I read that BP (they were the owners of the deepwater Horizon) will pay $4.5 billion in fines and other payments, the largest of its kind in US history. It is a lot of money but how can we estimate the value of million animal life's and the destruction of a big part of the Gulf of Mexico. The worst is that we could avoid it because the BP company saved money in the security systems in these Deepwater. I think that after this disaster the government should check all the deepwaters in order to reduce the possibilities of new cases.

A negative externality is an action of a product on consumers that imposes a negative side effect on a third party. Many negative externalities are related to the environmental consequences of production and use. for example the emmisions of green house gases. in this article it explains that when i company creates negative externalities neither the company nor the consumer pays for them so there the government has to step in to stop it by ptting regulations which increases the cost of the comapanies decreasing the negative externalities. but national companies complain because they say if regulations are set they cant compete with international firms like in china where there are no regulations for fuel negative externalities. for example a negative externality was the gulf of mexico oil spill where BP oil prices didnt rise to clean up the mess but the taxes did

This article shows how the environment can influence the aggregate supply in the economy. The article states that heat stress from global warming may be having an impact on outdoor work productivity in hot regions like northern Australia, Southeast Asia and the southern US. And the calculation tells us thatin temperate regions, people work continuously, but in the hottest places, the working day is split between 80% work and 20% rest. Therefore, people and government should pay attention to the environment problems nowadays because it will lead to a change in nation's GDP. And economists also should consider environment as a determinant of aggregate supply.

This article talks about how global warming is causing a decrease in work productivity, which would lead to a decrease in production. It states that in the hottest months of the year, labour capacity decreases by around 10%. They estimate that by 2050 the temperature would have risen by 1.8 degrees. At this temperature labour capacity would decrease by 20%. So overall this could have huge effects on the economy as production will decrease, and therefore there will be over aggregate demand. this then would cause inflation.

As all of us know, our world's population is increasing at a rapid rate. They predict that in 2025, there will be 1 more billion people on earth than their are today. So on average, they are predicting that there will be an increase in population of about 80 million people a year. Our resources that we have right now are already scarce, so it will only get tougher. Reporters say the 3 nations that will be most in need of more water will be China, India, and USA due to population growth, increasing irrigation and economic growth. Reporters also say that the amount of extra water needed is equivalent to 20 Nile Rivers. Failure to find the needed extra water could result in great conflicts over water. Also, with climate change (global warming) this will decrease the amount of available freshwater. Furthermore, the water needs to be sanitized to avoid diseases and sickness being spread. The report said that this could cost up to an extra 11 billion dollars a year. I chose this article because it is clearly related to scarcity and is growing concern in our world that needs to be looked at. 2025 is not very far away, and we need to come up with ideas for producing extra, clean water.

This article talks about the decline in deforestation in Brazil of the Amazon. It states that the deforestation in brazil has decreased dramatically from its peak in 1995, at 30 000 square km per year to 4656 square km this year. Although this doesnt seem as alot of space..its actually the size of The New York state. This has all happend due to the rising awareness of the Government to preserve the Amazon. Althoigh enviromentalists are still not completelty happy because the Brazilian government recently signed an agreement in favor of the farmers cutting down trees to increase agriculture. The Brazilians government is planing to reduce deforestation to 3925 by 2015. this is a market failure because by cutting down trees it affects the oxygen levels in the atmosphere increasing the effects of global warming.