The ecological consequences of global climate change are expected to be drastic although not much is known as to how individual species will react to these changes. Irrespective of the causes of climate change, whether anthropogenic or natural, it is imperative that we address these concerns, as they will have widespread impacts on the human species, both directly and indirectly through forcings on other species. The climate is not expected to shift evenly and the ways in which certain species adapt or migrate due to these changes could be erratic and unpredictable. The rate at which the earth's climate is currently changing is unprecedented and has not been seen in the past 450,000 years. Although many species have simply migrated northward or vertically up mountainsides to escape warming habitats, others do not have this luxury or cannot migrate fast enough to survive. The earth's temperature has risen by over one degree Fahrenheit over the past century, based on land and sea level measurements. The temperature is expected to continue rising at a faster pace over the next century, possibly increasing by as much as seven degrees Celsius. In comparison, the earth's average global temperature was only twelve degrees cooler than it is now during the last great ice age. A vast majority of species now living do so within a narrow spectrum of temperature ranges and will not be able to adapt to a warming climate on such a large scale. If humans are the cause of a warming climate we will ultimately be responsible for the destruction of millions of species. Indicator Species Polar bears are one species that are currently feeling the effects of a warming climate. Over the past twenty years, NASA satellite data has shown a 2.9 percent decline per decade in Arctic sea ice, resulting in shorter feeding seasons for polar bears. The species" main food source, ringed seals, which live on the ice of Hudson Bay are becoming increasingly inaccessible due to earlier ice melts.
Second, the country has clear climate and few vehicles ; but the city has pollution and too many vehicles. ... All in all,. the both of them have special qualities. also there is the question of working from home enviromental impact of traveling.. ...
A U.S enviromental protection agency stated second-hand smoke is the third major cause of lung cancer in the United States. ... The four major health hazards fall into air, water, and noise pollution. Air pollution can lead to various forms of respiratory disease. The main problem of smoking in a public place is indoor air pollution. Some of these problems that result indoor air pollution is building ventilation that has been reduced to conserve energy, with the result that ventiliation is simply inadequate. ...
The air pollution in Los Angeles was so bad that it was equaled to the amount of smoking 2.5 packs of cigarettes per day. ... The federal government also took interest in controlling the pollution. Congress passed laws that served as important examples for future lawmaking action on pollution issues. ... To enforce federal regulations, the Environment Protection Act (EPA) was also created in 1970 by President Nixon to set the limits on pollution, to support state and local governments in the cleanup of polluted sites and to conduct environmental research. The EPA was basically created to re...
Other countries, either less developed or more climate aware, do not agree with the countries that are more industrial, because they want strict regulations on air pollution that the more developed countries do not want. ... If you ask the U.S. if their doing a good job in trying to reduce pollution they will tell you yes they are. ... Prime example, "The European Union and the United States remain far apart on key provisions, including the amount of credit a country can get by investing in climate- protection projects abroad and how much credit towards emissions cuts could be gained by usin...
I agree with the congressional Office of Technological Assessment that the real amounts of toxic chemicals are much higher. Probably as much as double what the industry is reporting. I have no doubt that there are countless cover ups concerning chemical spills and intentional polluting. These peo...
Before beginning to explore this topic, it is vital to have clear definitions of what both utopia and dystopia are. Unfortunately, it is difficult to pin down exact definitions of these two words. Thomas More, in his 1518 book Utopia, originally conceived the term, although not the actual concept...
