Global warming is a global phenomenon which can be defined as the huge dramatic changes, unpredictable unusual weather condition with increase in average temperature of the earth including surface air and oceans over time due primarily to human influences.”The temperature of the earth has been increased by 1degree Fahrenheit in the last 100 years” which was propounded during industrial revolution when emission of carbon dioxide and other greenhouse gases in the atmosphere increased. The main cause of global warming is human generated CO2. If this process is continued then the pattern of weather and temperature will not be simmilar as now.Philippines will be one of the most severely affected areas, with its archipelagic formation and strategic locations as time hits the pearl of the orient by climatic and environment condition in coming years.
Now a day’s global warming has become a greatest” environment issue” in the present context we can watch news update commercials, different talk show in different channel. There are different advertisement program advocacy campaigns about the global warming or greenhouse effect which we can experience now a day.
It was first suggested in 1863 that changes in the composition of the atmosphere due to pollution could lead to climate change. According to the first actual calculations of the effect of greenhouse warming made by Swedish scientist Svante Arrhenius in 1896 estimated that a doubling of carbon dioxide [in the atmosphere] would increase the global average temperature by 4 ° C to 6 ° C. By the middle of 1980 there was wide appreciation of global warming and its consequence to the planet. The United Nations Framework Convention on Climate Change (UNFCCC) developed The Kyoto Protocol as an international agreement to reduce greenhouse gas emissions worldwide. The Protocol was entered into force in February 2005, and signed by countries committed to reducing CO2 emissions and 5 other greenhouse gases. Up to now 141 countries have ratified the agreement but neither united state of America nor Australia has been participated. In 1988 United nation established The Intergovernmental Panel on Climate Change (IPCC), a scientific body for the purpose of evaluating the risk of climatic changes. During the 20th century, the sea levels rose by 17 cm (6.7 inches) and 18 to 59 cm (7 to 23 inches) during the 20th century and 21th century respectively. During the time period between 1920 and 2005 snow cover in the Northern Hemisphere declined by 4%. Eastern Arctic Archipelago decreased by 15% between 1969 and 2004.
The indication of global warming is rise in sea level, decrease snowfall, change in weather rise in temperature and so on.
The causes of global warming:
The cause of global warming is mainly of two types
1. Natural causes
2. man made causes
Natural causes includes exploding of sunspots, solar output variations or solar activities, volcanic eruptions and changes in the Earth's orbit. Considering these natural causes, many scientists are of the opinion that the Earth will have to experience global warming, even without the influence of industrial and human activities.
Man made causes includes excess amount of GHG ;burning of fossil fuels which released CO2, ozone and other gases which traps the solar energy.leading to increase in temperature. Power plants generate the highest GHG, while automobiles rank second. Another man-made cause of global warming is Deforestation; with a decline in the number of trees, the amount of carbon dioxide getting absorbed will be less.Due to human civilization excessive amount of CO2 is being deposited in the atmosphere through furnances of power plants, automobiles, factories, burning of charcoal or fossil fuels, etc. To some extent an increase in CO2 level in atmosphere increases the rate of photosynthesis but further increase pollute the air and water. There are some gases also which cause the global warming like CO, SO2, NO2, methane and CFCS.
Effect of global warming
Many consequences of global warming once controversial or thought to be unlikely are now being observed. Arctic shrinkage and Arctic methane release, alongside large reductions in the Greenland and West Antarctic Ice Sheets, accelerated global warming due to carbon cycle feedbacks in the terrestrial biosphere, and releases of terrestrial carbon from permafrost regions and methane from hydrates in coastal sediments are accelerating, leading to expectations of runaway climate change.
EFFECT & CONQUENCE OF GLOBAL WARMING
The effect of global warming on the environment and human life are numerous and varied, One of the main effects of global warming is the climatic change, which is evident from the melting of glaciers, rising of sea level, changing pattern of precipitation and drying of cloud forests. Eventually, the potential risks of global warming includes species extinction, ecological imbalance, disturbed food chain and web, coastal flooding, shrinkage of rainforest, increased drought, extreme weather condition, increased health hazard and change or decreasse in crop yield. The rise in temperature of the earth's atmosphere results increase in sea level due to melting of polar ice-caps, more hurricanes and cyclones nearby the oceans, evaporation of water form the farms, thus reduce the crop yield. The melting of glaciers causes rising in sea level causing flood. Sea level is expected to rise 18 to 59 cm (7.1 to 23.2 inches) by the end of the 21st century. High temperature also causes the concentration of ozone in the lower atmosphere. Ozone is a harmful pollutant and causes respiratory disease. Researchers have found that the risk of extinction for mountain birds due to global warming is greatest for species that occupy a narrow range of altitude. In fact, a species vertical distribution is a better predictor of extinction risk than the extent of temperature change they experience, the researchers report. A threat to animal and plant life even in biodiversity hot spots once thought is less likely to suffer from climate change due to global warming, according to a new study. With these potential threats, there have been many issues regarding the responsibilities that should be taken up against global warming.
Now a day’s global warming has become a greatest” environment issue” in the present context we can watch news update commercials, different talk show in different channel. There are different advertisement program advocacy campaigns about the global warming or greenhouse effect which we can experience now a day.
It was first suggested in 1863 that changes in the composition of the atmosphere due to pollution could lead to climate change. According to the first actual calculations of the effect of greenhouse warming made by Swedish scientist Svante Arrhenius in 1896 estimated that a doubling of carbon dioxide [in the atmosphere] would increase the global average temperature by 4 ° C to 6 ° C. By the middle of 1980 there was wide appreciation of global warming and its consequence to the planet. The United Nations Framework Convention on Climate Change (UNFCCC) developed The Kyoto Protocol as an international agreement to reduce greenhouse gas emissions worldwide. The Protocol was entered into force in February 2005, and signed by countries committed to reducing CO2 emissions and 5 other greenhouse gases. Up to now 141 countries have ratified the agreement but neither united state of America nor Australia has been participated. In 1988 United nation established The Intergovernmental Panel on Climate Change (IPCC), a scientific body for the purpose of evaluating the risk of climatic changes. During the 20th century, the sea levels rose by 17 cm (6.7 inches) and 18 to 59 cm (7 to 23 inches) during the 20th century and 21th century respectively. During the time period between 1920 and 2005 snow cover in the Northern Hemisphere declined by 4%. Eastern Arctic Archipelago decreased by 15% between 1969 and 2004.
The indication of global warming is rise in sea level, decrease snowfall, change in weather rise in temperature and so on.
The causes of global warming:
The cause of global warming is mainly of two types
1. Natural causes
2. man made causes
Natural causes includes exploding of sunspots, solar output variations or solar activities, volcanic eruptions and changes in the Earth's orbit. Considering these natural causes, many scientists are of the opinion that the Earth will have to experience global warming, even without the influence of industrial and human activities.
Man made causes includes excess amount of GHG ;burning of fossil fuels which released CO2, ozone and other gases which traps the solar energy.leading to increase in temperature. Power plants generate the highest GHG, while automobiles rank second. Another man-made cause of global warming is Deforestation; with a decline in the number of trees, the amount of carbon dioxide getting absorbed will be less.Due to human civilization excessive amount of CO2 is being deposited in the atmosphere through furnances of power plants, automobiles, factories, burning of charcoal or fossil fuels, etc. To some extent an increase in CO2 level in atmosphere increases the rate of photosynthesis but further increase pollute the air and water. There are some gases also which cause the global warming like CO, SO2, NO2, methane and CFCS.
Effect of global warming
Many consequences of global warming once controversial or thought to be unlikely are now being observed. Arctic shrinkage and Arctic methane release, alongside large reductions in the Greenland and West Antarctic Ice Sheets, accelerated global warming due to carbon cycle feedbacks in the terrestrial biosphere, and releases of terrestrial carbon from permafrost regions and methane from hydrates in coastal sediments are accelerating, leading to expectations of runaway climate change.
EFFECT & CONQUENCE OF GLOBAL WARMING
The effect of global warming on the environment and human life are numerous and varied, One of the main effects of global warming is the climatic change, which is evident from the melting of glaciers, rising of sea level, changing pattern of precipitation and drying of cloud forests. Eventually, the potential risks of global warming includes species extinction, ecological imbalance, disturbed food chain and web, coastal flooding, shrinkage of rainforest, increased drought, extreme weather condition, increased health hazard and change or decreasse in crop yield. The rise in temperature of the earth's atmosphere results increase in sea level due to melting of polar ice-caps, more hurricanes and cyclones nearby the oceans, evaporation of water form the farms, thus reduce the crop yield. The melting of glaciers causes rising in sea level causing flood. Sea level is expected to rise 18 to 59 cm (7.1 to 23.2 inches) by the end of the 21st century. High temperature also causes the concentration of ozone in the lower atmosphere. Ozone is a harmful pollutant and causes respiratory disease. Researchers have found that the risk of extinction for mountain birds due to global warming is greatest for species that occupy a narrow range of altitude. In fact, a species vertical distribution is a better predictor of extinction risk than the extent of temperature change they experience, the researchers report. A threat to animal and plant life even in biodiversity hot spots once thought is less likely to suffer from climate change due to global warming, according to a new study. With these potential threats, there have been many issues regarding the responsibilities that should be taken up against global warming.
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