Population Growth Causes Multiple Environmental Problems According to Population Connection, population growth since 1950 is behind the clearing of 80 percent of rainforests , the loss of tens of thousands of plant and wildlife species, an increase in greenhouse gas emissions of some 400 percent, and the development or commercialization of as much as half of the Earth’s surface land. For the last half-century we have lived in a world in which the population growth rate has been declining. There can be a variety of causes for rapid population growth. The global population growth rate peaked long ago. Causes of the explosion: the demographic transition.
The cause of, first, the acceleration and, then, the deceleration in population growth is the modern demographic transition: an increasingly growing group of countries has experienced a transition from relatively high to low birth and death rates, or is still in the process of experiencing this. In general, population growth is driven by a higher birth rate than death rate, though several smaller factors impact that ratio comparison.
•Population growth is a problem of human welfare and of development. These are usually immediate, or short lived, occurrences and can cause rapid growth. Human overpopulation (or population overshoot) is when there are too many people for the environment to sustain (with food, drinkable water, breathable air, etc. There are circumstances which can create sentiment in the population that will inspire population growth. Migration also causes population change. There are also other conditions which seem inversely related. The major factors affecting population are birth, death and migration. Birth increases the population while death decreases the population. What causes population growth in Lagos - The population of Lagos is rapidly increasing. Causes. The chart shows that global population growth reached a peak in 1962 and 1963 with an annual growth rate of 2.2%; but since then, world population growth has halved. The size of population keeps on changing. It increases or decreases according to time and space. The main cause of the rapid growth over the past 50 years has been rural to urban migration. •Rapid population growth can … Increased diversity and human capital are among the positive effects of population growth. •Almost all of this net population increase-97%- is in developing countries. Population growth and quality of life •Every year approximately 80 million people are being added to the world’s population.
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