The demographic transition model accounts for the rise and fall in population, the birth rate, death rate, population size and growth.
Population growth is ultimately decided by the amount of births and deaths, and the balance of the main inputs and outputs of population, inputs to the population being births and immigrants, outputs being the deaths and emigrants. The proportion to which is what really matters. The demographic transition model accounts for the rise and fall in population, the birth rate, death rate, population size and growth. Different cultures, society's and geographical places have different reasons for being either under or over populated. For example, the Philippines, a mainly catholic country, is very overpopulated, because of the religion of the vast majority of the country, they don't use contraception or family planning, and so families can end up having many more children than is the 'norm' for say England, where the average number of children per household is 2, whereas, in the Philippines the average number of children per house is 5, and so the population rises. However, in places like Canada, where the population is around 33,000,000 people, so why does Canada have a low population density? It's because Canada is such a large country, the whole population is distributed very sparsely and there are only 3.4 people in a km 2. Canada is in stage four of the DTM, this means that: * The birth rate is falling * The death rate is low * There is no population growth * And the
Population Essay. Does mother earth have the capacity to sustain continued population growth
Population Growth Essay " Does mother earth have the capacity to sustain continued population growth" That is the question I am going to answer in the following essay. We will be looking at two persons who gave there opinion about the principal of population growth and their solutions. One called, Robert Malthus, the other person called Ester Boserup. They both differ a lot of each other in opinion. Boserup was more optimistic about it, although on the other hand Malthus was very sceptic and pessimistic. I will include their arguments and their way of looking at population growth later on, combined with my own view. Several facts are concurring about population growth. When the world would collapse of its own infirmity, it will be due different factors. One of them will be due global warming. This is also one of the arguments of Malthus which influences his credo1. Population growth is a very important issue for geographers now a day. These geographers are certainly divided into 2 groups. One group focuses more on the Malthusian-way of thinking and the other support Ester Boserups her ideas, which are more optimistic. Worries about population growth are not new. About 200 years ago, Malthus published a essay called; The Principal of Population Growth. His main arguments in this essay were about the geometrically grow of population, while the resources available to
Development is hazardous to natural and build environments
Developing country areas will decrease the amount of poverty throughout all of Asia, including the assistance to the countries economic growth. The development of road built infrastructure, water availability and aid will assist in the reduction of poverty. "Infrastructure development is a driving factor that can affect poverty negatively and positively. Infrastructure is important for poverty reduction. This can be the case where development aid, road construction or water and sanitary investments have been made with poverty reduction in mind." - (Environmental Knowledge of Change) The increased development and aid from more developed countries would help reduce the amount of poverty in many developing countries, also helping the population's health while helping to deteriorate the amount of poverty driven families. Economic growth can be helped by increasing the amount of contact within inland areas around Asia. "Rapid economic growth in recent years has put enormous pressure on Asia's transport, energy, and communications infrastructure. Unless these can be improved, they will continue to be a bottleneck to growth...Better connectivity with inland areas, for instance, would boost trade and economic growth in both coastal areas and inland...Following the 1997-1998 Asian financial crisis, countries with significant investments in infrastructure recovered faster than
Causes and Effects of Migration
Causes and Effects of Internal and External Migration Migration is the movement of people from one place to another. We can divide it into two different parts. Internal migration which is rural(towns) to urban(cities). For example, Oakham to Manchester and external migration also can be said as international migration which is the movement from one country to another. For example, Turks to Germany or Mexicans to USA which I am going to talk about it as we go on. People migrate for two reasons. Firstly, they may wish to get away from the things that they do not like. These are called push factors and include:- * not enough and poorly paid jobs * old and poor quality houses * natural disasters - earthquakes, volcanoes, wars * few oppotunities - shopping centers, cinema, food, schools, hospitals * poor transport Secondly, people are attracted to the things that they do like. These are called pull factors and include:- * more and better paid jobs * new and good quality houses * better education - more oppotunities * improved medical care * better transport Now I am going to talk about the rural-urban migration in Britain. During the Industrial Revolution of the nineteenth century, many people in Britain were either forced to leave the countryside caused by push factors or attracted to the growing towns caused by the pull factors. Between about 1930 and 1980 there
Diary Of Migration
Day One (Tuesday 17th May) Dear Diary, today has been a tough day for everybody in the village, a child has recently died as we have just passed through the summer season and drought has been terrible , all the family are so upset because he had a dreadful suffering death of a lack water. This is the 12 death we have had this month because of drought and I really hate living here, I just wish I could move away to a luxury apartment in the centre of Rio De Janero where my life could be fantastic as it is only 10miles south from where we live. Its unbearable seeing people having a life of high wages. Day Two (Wednesday 18th May) Dear Diary, Because of the drought and the poor services here, me and my family have decided to move out into the centre of Rio De Janero where we can live a marvellous life of better housing and an education for my 13 year old child so he can become an teacher that's always wanted to be in his future job. We have decide to take the bus there, but we have to be early because it only comes one time a day and holds 26 people and normally there are over 60 people from the village from the village trying to leave. So today I have told my children Ronaldinho and Stella have been saying goodbye to all there friends. Day Three (Thursday 19th May) Dear Diary, It's 9 O'clock here and I'm on the bus to 3 hour bus trip to Rio. Me and my family have decide
Socio-economic and political impacts of climate change in Africa
'The cause of the warming of the African continent (and of the world as a whole) over the past 100 years is not clear. The change in atmospheric composition associated with rising levels of greenhouse gases must be one of the most plausible explanations, but there are other possibilities (Wigley et al., 1992). The trend may, for example, be the result of natural climate variability, shifts in the ocean temperature distribution or changes in the solar output. The progressive degradation of dryland areas, by reducing surface soil moisture, may have contributed to the warming over Africa, although the results of recent analyses suggest that the effects may account for no more than a small proportion of the trend observed over the continent as a whole (cf. Balling, 1991, with Hulme and Kelly, 1993). Whatever the cause of the warming trend, it provides one benchmark against which we can judge the projections of future climate warming for Africa' All that one needs to look at is the Annual rainfall during the mosts recent three decades to see that there has been around 20 to 40 percent less than was expected around the 1960's. Take extreme years such as 1984 and 1990 where rainfall levels have dropped below 50 percent of what is normally expected. But the real question we are trying to answer here is how sensitive are African natural resources, managed ecosystems and national
Climate Change
U.K Climate Change and its Effects The threat of climate change will have impact in the following areas of life in the British Isles: • Sea level rises • Flooding • Ocean currents • Health • Agricultural • Wildlife However there may be new opportunities offered by a warmer climate. However, the overall effect of climate change for the world is NEGATIVE. Rising Sea Levels Sea level will rise by between 10cms and 90cms this century depending on how we reduce CO2 emissions. The coastline of Britain could change dramatically. Low lying areas could be invaded by the sea e.g. East Anglia Ocean Currents The Gulf Stream brings warmth to the UK and north-west Europe and is the reason we have mild winters. The average annual temperature of north-west Europe is about 9C above the average for our latitude. If greenhouse gas emissions continue to increase, the temperature and density of the sea water in the North Atlantic will change with dramatic consequences. The gulf stream may stop or be greatly reduced. This would mean that less heat is brought to north-west Europe - harsher winters and mild summers. Flooding The UK has experienced devastating floods throughout the last five years, which have affected thousands of people and caused millions of pounds worth of damage. Last Summer's floods shocked the country - Large town were cut off or under
Tourism in Greece
Info about tourism in Greece Greece mainland and the Greek islands are one of the favourite holiday destinations in Europe. In fact, Greece comes in the 15th place in the world rating of tourist destinations, since, according to the National Statistical Service of Greece, it receives more than 15 million tourists every year, after countries such as the USA, China, Spain and Great Britain. Most tourists come to Greece from Europe, especially the EU countries, and from the USA, while fewer originate from the other continents. In 1989 and 1991, approximately 90% of the tourists to Greece were Europeans, in particular German and British citizens. Until the mid-1990s, the tourism flow in Greece would not surpass 8 or 9 million; however, 1994 was a determinant year for Greek tourism because more than 10 million people chose Greece and the wonderful Greek islands to spend their summer vacations. Greece is a famous country, popular for its clean beaches and its long history. There are hundreds of archaeological and historical sites to visit in Greece that gloriously depict the country's past. Its landscape is mainly mountainous and the terrain is not very fertile, except for some valleys scattered along the Greek mainland. However, Greece is surrounded by water, in particular the Aegean and the Ionian Sea. The country consists of more than 1,400 islands and islets, but only 169 of
Pedestrian Counts.
GCSE Geography Coursework Analysis . Pedestrian Counts My Isoline Map of Cambridge shows that, as I predicted, the overall trend of my data is that the further you move away from the city, the fewer the number of pedestrians. This theory is backed up by my scatter graph, which shows a negative correlation meaning that the pedestrian counts and the distance away from the city centre are inversely proportional, with lower counts the further you move away. The two innermost, red coloured zones of the map have pedestrian counts in the mid four hundreds. These counts are this high for a number of reasons. They are in the centre of Cambridge's CBD, and as a result are filled with high demand shops and services, and a large number of densely populated office blocks. For instance the reading recorded on Market road, showing 419 people passing that point in ten minutes was most probably due to the famous 'Cambridge Market' which lies there. The highest reading of 465 on the corner of St Andrews street was again due to the presence of a great many shops and services. I also note that the time when these readings were taken is also important. The fact that they were taken at 11:30am on a Wednesday morning is crucial as this would be one of the times where the highest density of people would be shopping and working in offices. If these readings had been taken at 11:30am on a Sunday
Case Study: Gambias Youthful Population. What are the positive and negative impacts?
Case Study: Gambia's Youthful Population Gambia is located in West Africa as shown by the map below. It is a small country of only 11,000km². Why is Gambia's population youthful? As Gambia is an LEDC, they lack the funds to employ a vast amount of doctors to the area. This means that for every doctor, there are 14,536 patients meaning that the inhabitants don't receive much healthcare. This has contributed to a relatively short life expectancy of just 54 years for a man and 57 years for a woman. The lack of healthcare available has also meant that there is an extremely high infant mortality rate of 73 per 1000 people, even though it is lower than it has been in the past. As many children die at an early age, parents tend to have a large number of children to help with daily tasks, to bring a higher income to the family and to look after the parents when they reach ill health. Gambia has a high birth rate of 40 per 1000 people because of this and in 2003, the average fertility rate was 5.13. What are the positive and negative impacts? Due the high birth rate, falling infant mortality rate and improvements in the level of healthcare available, the population has been increasing rapidly. In fact, Gambia's population doubles every 28 years and in 2009, it is estimated to be around 1.7million people. 63.55% of the population is estimated to be aged below 25 years and only
