Global population

In recent years there has rightly been a marked increase in concern for the environment. The continual global population explosion together with the increase in purchasing power has led to a vast increase in the amount of pollution and rubbish. Because of their visibility and inability to degrade at a reasonable rate, plastics materials have been particularly criticised. 

In order to translate the concentration data Into estimates of population exposed, the total 1978 urban population (cities greater than 200,000) of 1.8 billion was used as the global population (17). Results of this calculation can also be seen In Table III. It can be seen that 625 million people are estimated to live In urban areas where average SOj levels exceed the MHO guideline and 975 million people live In areas which exceed the short-term level. (8)... 

Over 65% of the global population Is living In urban areas where the concentration levels of particles are considered to be unacceptably high. In contrast less than 20% of the people are living In cities considered to have acceptable levels of particles. 

Smil, V. (1997). Global Population and the Nitrogen Cycle. Sclent. Am. July, 76-81. 

In Ihc present paper I will discuss CO2 and energy issues together with the environment and resources issues because other enviroiunental issues and resources problems are the most important issues for the survival of the human beings, comparable to the global population problem and nordi/south issues [1]. The research activities concerning the problems in the laboratory of the present author are also introduced only by the references. 

The recent gains in world population and the pressure they place on natural resources is having an impact on the economics of weed control currently and will have far reaching impact on it in the future. Since the early 1940 s the world s population doubled -from less than 2.3 billion to over 4.6 billion in 1983. The annual rate of growth is about 1.7 percent and recent projections indicate the global population will increase to slightly over 6 billion by 2000. 

Table 2 Global Population and Pharmaceutical Sales (by value) by Region, 1997...

Region Global population (%) Global drug sales (%) Ratio of sales to population... 

Chronic forms of hepatitis (in particular B, C and D) can result in liver cirrhosis and/or hepatocellular carcinoma. This occurs in up to 20 per cent of chronic hepatitis B sufferers and in up to 30 per cent of chronic hepatitis C sufferers. The scale of human suffering caused by hepatitis on a worldwide basis is enormous. Approximately 5 per cent of the global population suffer from chronic hepatitis B. An estimated 50 million new infections occur each year. Over 1.5 million of the 300 million carriers worldwide die annually from liver cirrhosis and hepatocellular carcinoma. 

Vegetational carbon banks would compete with agriculture for land and nutrient resources. It is estimated that a land area about the size of Alaska would need to be planted with fast-growing trees over the next 50 years to use up about half the projected fossil-fuel-induced C02 at a cost of about 250 billion or 50 per person for the global population. One problem is that once the trees are fully grown they no longer take up C02 very rapidly and would need to be cleared so new trees could be planted to continue a quicker uptake. Old trees could be used for lumber, but not fuel, since this would release the C02. If used as fuel, a delay of 50 years, (the typical growth time) would occur and move up the buildup rate of atmospheric C02. 

In a world where the global population will increase from 6 to 8 billion inhabitants during the next 30 years, demographics are an important aspect to be considered in the geopolitical scenario. 

The great uncertainty in this mountain region is how people cope with increased climatic variability. Because the mountains are the source of water for some 25% of the global population, the area is intensively used for food production, and in contrast to the European Alps the scientific knowledge base is quite poor. 

Influenza develops in approximately 20% of the global population each year. The 1918 influenza killed 50 million people worldwide, when an avian flu was passed on to humans. Chemistry genius Robert Burns Woodward lost his father to the 1918 Spanish influenza pandemic when he was only two years old. The Asian influenza occurred in... 

States in particular. This development is even more important today with the maturing global economy, increased global population, and decreased acreage of arable land. 

A redefinition of all-American a global population on the move city to city country to country... 

This continues to be a far lower level than tobacco use (28 %). UNODC s estimate of the global number of problem drug users also remains unchanged at around 25 million people or 0.6% of the global population age 15-64. 

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