Argentina’s Upsala glacier is melting at alarming levels when it is still winters, as per a recent research conducted there. Surprised? Consider this,the IPPC report claims that the sea level has risen at about 17 inches in the twentieth century, and may rise up to 22 inches in the twenty first century. The world is clearly facing Global Warming. The clear cut questions out here are why? what is the adverse impact of this intense warming on the world?
The global climate studies show that our earth has experienced a number of glacial and interglacial periods in the recent past, subject to the amount of solar radiation reaching the earth‘s surface. There are many past evidences of land submergence and marine transgression to prove this theory. The submergence of Dwarka under water is just one example to this. Many marine fossils have been recovered from landmasses. The current warming that we are experiencing is the interglacial period succeeding a global ice age. The warming that we are experiencing today coincides predominantly with the end of last interglacial period, thus it may be concluded that we are nearing the end of the warming phase and transiting into a global glaciation.
Extensive and widespread volcanic activity also causes Global warming. The eruption of volcanoes brings out hot lava to the surface along with the volcanic ash. This hot molten volcanic material contributes substantially to the process of warming, as the molten material flows through acres of land charring everything that hits its path. The extensive volcanic activity in Mexico in North American continent has recently become a cause of concern for the scientific community
However, the most important contributing factor for Global warming is the increase in the Greenhouse gases in the atmosphere, which, in turn trap the heat of the sun within the blanket cover of the atmosphere, thus warming up the environment. These Greenhouse gases are Carbon-di-oxide, methane, nitrous oxide, sulphur hexafluoride, HFCs, PFCs, and CFCs are considered the major greenhouse gases that are contributing to the Greenhouse effect. These are mostly emitted as a result of anthropogenic activities. Burning of fossil fuels, vehicular and industrial pollution, use of refrigerators, aerosols, etc are a few causes for the emission of these greenhouse gases.
The impact of the Global climate change is no less than catastrophic. The Argentina meltdown is just the tip of the iceberg, there are other such indications as meltdowns are being experienced in Peru, Chile, Bolivia, etc. our very own Himalayas are nowhere left behind. These glacial melt are leading to a rise in the sea level. This rise is predicted to be so great that as per certain predictions within 50 yrs most of the currently populated landmass would be submerged under the marine waters.
Not only is this, the change being experienced by the climates all over the world, is leading to extinction and endangerment of many species of flora and fauna the world over. This means that the world will soon experience food crises too, as the change in temperatures and humidity conditions would effect the growth of crops that require specific climatic conditions. Thus the economic conditions of almost all the nations of the world would degenerate.
Thus it is important for us to take appropriate measures to bring under control at least, the anthropogenic factors that are, folds contributing toward Global warming. The effects of warming is not going to demarcate the rich and the poor nation so, it is important that all nations of the world sit together and decide the much needed plan of action that each is going to take. If there is one place the politics should take backstage, it is here. We have to understand that as citizens of the world community we have our own set of responsibilities to practice restraint wherever possible and needed, it is us who can make a great difference.
Global warming is a phenomenon that has been happening for long and if no action is taken now, then the consequences definitely going to be regrettable and definitely not to our liking. The impact is going to positively affect us and our future generations. What could be the intensity of this impact, I leave to your imagination. Think, ponder and act because that is the need of the hour.