UGC NTA NET Exam Preparation |Impact of Climate Change (Socio-Economic & Political Dimension| Unit-9|Part-7|

 UGC NTA NET Exam Preparation |Impact of Climate Change (Socio-Economic & Political Dimension| Unit-9|Part-7|

The climate change greatly affects the geographical, socio-economic and political life of people, which can be seen through the following points.

1. Rise in Sea Level: Human activities, such as burning coal and oil, cutting down the forest have increased atmospheric concentration of heat trapping gases and caused the planet to warm by 1.4 degrees Fahrenheit since 1880. It leads melting of ice and glacier at a faster rate. Rising temperature of warming ocean waters, which expand as the temperature increases. this thermal expansion was the main driver of global sea level rise for 75-100 years after the start of the industrial revolution.

2. Melting of Ice: After exhausting for many millennia, the northern section of the Larsen B ice shelf in Antarctica collapsed b/w January and march 2002. Since 1995, the Ice shelf's area has shrunk by 40 percent. According to NASA, the polar ice cap is now melting at the alarming rate of nine percent per decade. Arctic ice thickness has decreased to 40 percent since the 1960s.

3. Change in Ocean Current: Far beneath the surface of the ocean, deep currents act as conveyer belts, channeling heat, carbon, oxygen and nutrients around the globe. A new study has found that recent climate change may be acting to slow down one of these conveyer belts, which may lead to potentially serious consequences for the future of the planet's climate.

for e.g., according to meteorologists, if the global conveyer belt stops, then there will be a severe increase in the formation of glaciers and it will start an ice age on earth, which will affect all the sphere of human life.

Change in currents also leads to late arrivalcy of monsoon or sometimes heavy rainfall which affects the agricultural production and socio-economic as well as political life of people.

4. Impact on Biodiversity: In its most recent assessment, the IPCC reiterates that 20-30 percent of species assessed so far a likely to be at increased risk of extinction (relatives to 1980-1999)and as global average temperature increase exceeds about 3.5 degree calcium, model projection suggest significant extinctions (40-70 percent of species assessed) around the globe. Global warming doe snot only make vegetation gasp for air but also leads to animal habitat loss. this is especially a big problem for sensitive species. 

The loss of these habitats leads to extinctions of the amphibians dependent on these forests for their survival.

Many species may be seriously affected by the spread of viruses and bacteria which normally thrive in warmer conditions. this, among many other things, may push these animals even closer to the brink of extinction.

The loss of biodiversity also has direct and indirect impacts on human life.for e.g., with the loss of mangroves and coral reefs, which are excellent natural buffers against floods and storms,coastal communities have increasingly   suffered from severe floods which affected their socio-economic, and political life.

5. Impact on Human Health: Warming oceans and a changing climate are resulting in extreme weather patterns which have brought about an increase of infectious both new and re-emerging.

These extreme weather patterns are creating extended rainy seasons in some areas, and extended period of drought in others as well as introducing new climates to different regions. Thus, it collectively affects the social as well as economic life of people.

6. Impact on Climate: There is a clear evidence of changes in the compositions of the greenhouse gases in the lower atmosphere, with CO2 in particular steadily increasing to its present level of about 400 ppm.
for e.g., in may 2013, the daily mean concentration of carbon dioxide in the atmosphere of mauna loa, hawaii, the primary global benchmark site, surpassed 400ppm for the first time since measurements began there in 1958.

It has increased by one third in the last 200 years and half of that in the last 30 years.

7. Impact on Global Relations: Climate change also affects global relations at great level. As there are many conventions at world level to reduce carbon emissions by minimising development activities. this creates pressure on developing and less developed countries which are on the path of development.

Whereas many developed countries, which already have developed their economy, are also pressurising the developing and less developed nations to minimise their developmental activities in order to achieve the desired goals of these environmental conventions.

This type of situation sometimes creates political tensions among countries, thus affect the global relations of these nations.

Post a Comment