Essay on Environmental threat to Public Health

Global warming poses the gravest environmental threat to public health in the United Kingdom in the second decade of the twenty-first century. It should be noted that the appropriate forms of intervention by the UK government can address this threat and eliminate it. Environmental Health practice with particular respect to the environmental factors poses as threat to public health, and also influences health and wellbeing. There is also the certain impact of environmental health on public health, poverty and well being.

Global warming – is a gradual increase in average temperature of Earth’s atmosphere and oceans in the XX and XXI centuries. The position of Intergovernmental Panel on Climate Change (IPCC), consistent with national academies of sciences of the “Big Eight”, lies in the fact that the average temperature on Earth has risen by 0,7 ° C since the Industrial Revolution (in the second half of XVIII century ) and that “a large proportion of observed warming over the last 50 years is attributable to human activities”, especially the emission of gases causing the greenhouse effect, such as carbon dioxide (CO2) and methane (CH4).

Estimates obtained in climate models referenced by the IPCC, said that in the XXI century the average surface temperature could rise by between 1.1 to 6,4°C. In some regions, the temperature may drop slightly. In addition to sea-level rise and global temperature rise will lead to changes in the quantity and distribution of rainfall. The result may be more frequent natural disasters, for example droughts, floods, or hurricanes, and other fall harvest crops in the affected areas and will increase – in other zones (by increasing the concentration of carbon dioxide). Warming should, in all likelihood, increase the frequency and magnitude of these phenomena.

Environmental health, according to World Health Organization, is “the discipline that comprises those aspects of human health including quality of life and social welfare, which are also determined by environmental factors, physical, chemical, biological, social and psycho-society. It also refers to the theory and practice of assessing, correcting, controlling and preventing those factors in the environment can potentially adversely affect the health of present and future generations”, as described in Environmental health.

The awareness that an environment, a working environment and domestic conditions deteriorated produces a new scenario is to undertake study and improvement. The environment and the direct impact on the regulation of genes is driven by the interaction of heredity and environment. This explains why people who are genetically identical, like twins, end up being different over time, as described in Climate change costs lives, as stated in Environmental health.

Climate warming may cause displacement of species ranges to the polar zones and increase the probability of extinction of indigenous species – the inhabitants of coastal areas and islands whose existence is now threatened by. Climatic changes of the system as a result of natural internal processes and in response to external influences, both anthropogenic and non-anthropogenic, and the geological and paleontological data indicate the presence of long-term climatic cycles, which in the Quaternary period took the form of periodic ice ages, and now accounts to interglacial, as stated in Climate change.

Causes of climate change remain unclear, but among the major external impacts of Earth’s orbit, solar activity (including changes in solar constant), volcanic emissions and the greenhouse effect. According to direct observations of climate (change in temperature over the last two hundred years), average temperatures on Earth have risen, but the reasons for this increase remains a subject of debate, but one of the most widely discussed is the anthropogenic greenhouse effect. It can not be said that there is a dispute between those who “believes” and “does not believe” the theory of greenhouse effect. Rather, contested the final effect of increasing amounts of greenhouse gases in the atmosphere, which is not offset by a warming effect of greenhouse effect changes in the distribution of water vapor, clouds, the biosphere and other climatic factors. However, the observed increase in the last 50 years the earth’s temperature contradicts the theory of compensating role of the above feedback.