Tuesday, 30 October 2012

Global Warming

                                           GLOBAL WARMING PART-1

As every one knows about global warming that what it is and why its happening. The main point to see in this is that

1.How it is effecting on Human being and Earth?
2.What are the possible reason for its to become a major issue?
3. If it continues than where we will be reaching in our future.







So let start with this major issue in details............

Firstly

Effects of Global Warming on Earth





“Climate change is expected to have the most severe impact on water supplies. “Shortages in future are likely to threaten food production, reduce sanitation, hinder economic development and damage ecosystems. It causes more violent swings between floods and droughts.”" – Guardian: Global warming causes 300,000 deaths a year

“Climate change is expected to have the most severe impact on water supplies. “Shortages in future are likely to threaten food production, reduce sanitation, hinder economic development and damage ecosystems. It causes more violent swings between floods and droughts.”" – Guardian: Global warming causes 300,000 deaths a year


“Climate change now represents at least as great a threat to the number of species surviving on Earth as habitat-destruction and modification.” Chris Thomas, conservation biologist at the University of Leeds



  • The role of the oceans in global warming is a complex one. The oceans serve as a sink for carbon dioxide, taking up much that would otherwise remain in the atmosphere, but increased levels of CO2 have led to ocean acidification. Furthermore, as the temperature of the oceans increases, they become less able to absorb excess CO2. The ocean have also acted as a sink in absorbing extra heat from the atmosphere.The increase in ocean heat content is much larger than any other store of energy in the Earth’s heat balance over the two periods 1961 to 2003 and 1993 to 2003, and accounts for more than 90% of the possible increase in heat content of the Earth system during these periods.Global warming is projected to have a number of effects on the oceans. Ongoing effects include rising sea levels due to thermal expansion and melting of glaciers and ice sheets, and warming of the ocean surface, leading to increased temperature stratification. Other possible effects include large-scale changes in ocean circulation.


  • The amount of oxygen dissolved in the oceans may decline, with adverse consequences for ocean life.




Thursday, 25 October 2012

Introduction


Side Effects of Human on Earth(Green Planet)


Basically this is for the activities that have been done by Human on earth from long times and its effects that have started seen on earth as in term Side Effects. All the major activities done by human has resulted in arising of various problems like:
1. Water Pollution
2. Air Pollution
3. Land Pollution
4. Green House Effect
5. Signal Pollution etc.....

All these are becoming major problems,slowly and gradually and will make end of living on this green planet. In this i will be trying to just represent scenario of today's earth and how its conditions are getting worst day by day.

Recently related to this i read one article on BBC news which says some facts shown below:

"The most comprehensive survey ever into the state of the planet concludes that human activities threaten the Earth's ability to sustain future generations.

The report says the way society obtains its resources has caused irreversible changes that are degrading the natural processes that support life on Earth.

The Millennium Ecosystem Assessment (MA) was drawn up by 1,300 researchers from 95 nations over four years.t reports that humans have changed most ecosystems beyond recognition in a dramatically short space of time."

For more details of this article go through this link: http://news.bbc.co.uk/2/hi/science/nature/4391835.stm