Human populations

Policy- and decision-makers claim information about the causes of population declines which driving species on the brink of extinction (). However, it is pointed out that the causes of vulnerability remain unclear to explain the variation to the risk of extinction (). According to Reynolds (2003), vulnerability is determinate by both the decline of species population and the reduction of their geographical range. These two forms of vulnerability are affected by both species’ mortality and habitat

Sustainable Development and Population Control       A nineteen year old pregnant Chinese girl is forced to abort because she is "too young" to have a child. Iran, an Islamic nation, instructs religious leaders to promote contraception as a social duty. A Norwegian international banker worries about "migratory tensions" that would engulf his nation with waves of third world immigrants. A Los Angles Times article decries the lack of an official United States population policy. What do these statements

between population and means of subsistence and describes what conditions characterize a Malthusian Economy. If a population is given the opportunity to double in size every twenty-five years, it would exhibit exponential growth. However, the means of subsistence do not grow exponentially but arithmetically (Elwell 2001, 5). The differing patterns of growth allow for a large gap between population and production to grow over time. In a Malthusian Economy, one would expect to see population and means

holiday festivals, and park concerts. During this time many locals, businesses, and nonprofit organizations come together to plan and carry out these events. According to the city's website the population of Ceres started in 1920 with 637 people. Today the U.S. Census Bureau documents that the Ceres population was 13,281 in 1980 and in 2014

more are completely natural occurrences; however, there is one terrifying force that changes the world much faster than most of its inhabitants can handle: humans. Ever since humans began to populate the Earth, we have been exploiting natural resources and depleting populations, thus harming countless communities and ecosystems. As our population continues to increase, we destroy more and more natural habitats, negatively impacting biological diversity by decreasing the abundance of individuals per

ensures that wildlife populations of game species are sustainable from one generation to the next” (Gibbons 1). Land can only feed and house so many animals before all life naturally dies off and kills the surrounding area. Once animals are over populated something must be done to restore balance to the ecosystem. Natural selection in the environment is not enough for many animals to keep populations at a manageable rate. This is where hunters come in, hunters help to lower populations in environments

From 1950 to 2005 the Earth’s population has risen from 2.5 billion to 6.5 billion according to the Population Reference Bureau. One of the first people to say that human population growth is not always a good thing was Thomas Malthus. In 1968 Paul Ehrlich wrote a book called The Population Bomb, which rose awareness on the possible impact of a rapidly growing human population. When this book was written the thought of controlling the population was not a popular opinion, and not all of

Human Geography is defined as the study of spatial pattern and spatial organization of human activities and people’s relationships with their environment. The study of spatial organization of human activities is extremely important as it allows us to understand demography, the study of the characteristics of human populations. Demographics allow geographers and government agencies to look at population data from the past and the present to predict future trends in population growth or decline (Knox

Human consumption is depleting the Earth 's natural resources and impairing the capacity of life-supporting ecosystems. Humans have changed ecosystems more rapidly and extensively over the past 50 years than during any other period, primarily to meet increasing demands for food, fresh water, timber, fibre and fuel. Such consumption, together with world population increasing from 2.6 billion in 1950 to 6.8 billion in 2009, are major contributors to environmental damage.(Human population growth and

China’s population law was instituted in 1979 under the leadership of Deng Xiaoping. This law limited families to one child. One reason why China created this law is because they were afraid that rising numbers in the population would result in another famine. Recently in 2015 the law was changed to allow families to have up to two children. Even with this relaxation in the law, this law has created a great deal of controversy. China’s population law should be abolished because the population infringes