Global warming is a problem that is often overlooked by many and is hindered among other problems that require immediate actions. Over the last 136 years the temperature in earth has increased 1.7°¬¬¬F. Although an increase of 1.7°¬¬¬F over 136 years may not seem like a lot but humans are destroying the earth at a faster rate than ever before. Human omissions are roughly equal to 4 Hiroshima atomic bombs exploding across the planet every second leaving future generations of human in jeopardy. With warmer climate comes with catastrophic outcomes like drought, which can destabilize the food sources on earth leaving millions of people hungry. Widespread extinction of most species on earth and the melting of polar ice caps can raise the sea level leaving most of the world’s coastal cities under water. This cannot happen overnight but if humans keep omitting at the current rate the outcome of climate change will become prominent
The clock is ticking! Global Co2 emissions have increased exponentially since the industrialization of today’s developed world. Emissions have now passed the absorptive capacity of the earth and are accumulating in the earth’s atmosphere, warming the surface of the earth and inducing localized climatic changes. Climate change is often a localized issue. Many regions of the world will continue to become hotter, while others may experience highly variable weather patterns. Climate change poses a serious threat to ecosystems, economic sectors, and human welfare. Although almost entirely caused by the developed world, climate change will disproportionally affect the world’s poor.
As small mobile groups of hunter-gatherers adopted a sedentary lifestyle, they mastered both agriculture and animal domestication. These small settled groups quickly evolved into cities and towns that encompassed the entire globe. Today the estimated population of the world is over 6.2 million people.1 As the population has grown, it has had several deleterious effects on the Earth. These include climate changes, the spread of diseases, declining food production, deforestation, and environment pollution (particularly air pollution). As people have become more conscious of these harmful effects, they have begun to devise strategies to combat this problem. Among the suggested responses include a switch to renewable energy, a call for zero population growth, and adopting sustainable agricultural practices.
The world’s population has been growing faster and faster, which projects potential problems with maintaining world food and water supply, and altering biodiversity worldwide. Fortunately, there are practical and manageable ways to keep the world’s human population in check to make sure that overpopulation is avoided. According to the population reference bureau the world population is reaching close to 7,200,000,000 people and increasing fast. The University of Washington estimated the world population to reach a massive 11 billion people by 2100; this was even increased from the U.N.’s prediction in 2011 of 10.1 billion. The current rate of population growth could have a crippling impact on the future welfare of the human and the natural world in this century. There are about 78 million more births than deaths each year; this is alarmingly fast, even with most women having 2 or fewer children. That’s equivalent to the entire population of Germany every year.
In today’s world, many changes have occurred to the climate. It is believed that the man-made process is leading to climate change. Global temperatures have increased which has resulted in more extreme weather events such a flooding, heat waves etc. There are many issues arising within the world today relating to climate change. Over the years, human societies have changed local ecosystems and modified regional climates. At present, human influence has accomplished a global scale. This reflects upon recent increase in population size, energy consumption, intensity of land utilisation, international trade and travel etc. The global modifications have enhanced awareness that long term good health of population is dependent on the continuous stability and functioning of the earth’s ecological, physical and socioeconomic systems. The world’s climate system is an essential aspect of the complex of life-supporting processes. Climate and weather have a major impact on human health and wellbeing, however unlike other natural systems; the global climate is beginning to come under pressure from human activities. Global climate hence is a current challenge in ongoing attempts to protect human health (McMichael, 2003).
There is widespread agreement in the scientific community that the climate is changing and it has likely received contributions from humans in the form of increased carbon emissions. The Fourth Assessment Report of the Intergovernmental Panel on Climate Change has stated that there is ninety percent certainty that human activity has been the primary cause of temperature rises seen since 1950; if the climate rises by more than two degrees Celsius, scientists predict dire consequences to be faced by humans and the world (McMichael and Lindgren, 2011, p. 402). Changes in climate, no matter how small, bring with it changes in other seemingly unrelated aspects of life. As current research suggests, climate change will have negative effects on human health and nutrition, increasing disease states while having a negative effect on the world food supply. Both of these effects will have negative implications on the quality of life for people living around the globe. Climate change is a global matter, so policy on climate change should consider the health impacts it brings since climate change will ultimately affect the wellbeing of everyone living on this planet. It is therefore the responsibility of every individual to take measures that will help slow down the rate of global warming that is currently going on.
The causes of climate change are also known to them that though it is not only the human action playing role but it is the main cause of climate change. The effects of climate change does include harm and loss of environment and organisms but it also has impact on the human health. Semenza (2014) displays an assessment report which states that throughout the 21st century, the rapidly occurring climate change will lead to increase in number of humans with ill health in many regions mainly in those of developing countries where citizens face low income. Semenza (2014) also mentions how there are physiological limits to intense heat exposure and the global climate change will turn some parts of the world which are currently highly populated into uninhabitable even if the global temperature rises by 7 degrees Celsius. Johnson (2014) states how El-Niño-related hydroclimate variability will lead to being intensified under global warming mainly in areas as southern Asia which are already stressed by different droughts, floods, and crop yields. Dettinger, Udall, and Georgakakos (2015) mentions how climate change puts risk and threat on water resources in the western United States to an extent that no other part of the country matches it. Dettinger, Udall, and Georgakakos (2015) also states how recent research and studies strictly point a limited number
The worldwide population is approaching 7 billion and is expected to reach 9 billion by 2050 (Baird). This projected population number is down from a once predicted 16 billion (Baird) and while some are not concerned, others are worried about any increase in population. Population growth is discussed in the articles “Too Many People?” by Vanessa Baird; “Population Control: How Can There Possibly Be Too Many of Us?” by Frank Furedi; and “The Population Bomb Revisited,” by Paul R. Ehrlich and Anne H. Ehrlich. Baird and Furedi concur that a concern for population growth has been around since mathematician Thomas Malthus, in 1798, warned that overpopulation could lead to “the collapse of society” (Furedi). Furedi claims that too much human life is being used as an excuse, by population control supporters, for the world’s current and future problems. Baird tries to discover if “the current panic over population growth is reasonable.” For Ehrlich and Ehrlich the concern over population growth is very real, and they reinforce and support their book “calling attention to the demographic element in the human predicament” (Ehrlich and Ehrlich 63). While taking different approaches to their articles, the authors offer their perspectives on population growth, population control and the environmental impacts of a growing population.
The human population growth rate is an alarming issue that brings with it irreversible consequences, that will likely effect the way of life for future generations to come. With the serious incline in population statistics comes catastrophic processes such as global warming and deforestation that have major ‘knock on’ ramifications. It’s issues such as these that need to be considered when we think about the growth of the human population, and we must take into account why these issues are occurring. We must also explore the options available to us that may assist in limiting the problems, or eliminating them all together, to provide a better place, not only for us in existence now, but also those who will walk this earth in the future decades and centuries to come.
In 1927, for the first time in history, the world’s population reached two billion people. In 2011, less than one hundred years later, it passed seven billion (Worldometers). Some may think that this is a positive increase, creating economic growth and significant innovations in fields such as agriculture, industry and medicine. However, the amount of difficulties our species will encounter over the next century because of this population increase, will greatly outweigh those few optimistic beliefs. For example, twelve to fifteen million hectares of forest are lost every year, the equivalent of thirty six football fields per minute (World Wildlife Fund). In 2011, there were an estimated nine and a half billion metric tonnes of carbon emissions put into our atmosphere (CO₂ Now). The list could go on and on, but ultimately, these are all just contributors to what might be humanity’s most challenging problem yet: climate change.