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We are now beyond debate that the Climate of our beautiful planet is changing rapidly!
What is Climate?
There are few main elements that directly affect the working systems of our fine earth and hence all its habitants. These are elements such as air pressure, water vapor, air temperature, atmospheric pressure, wind, rainfall, and atmospheric particle count. The present condition of these elements, and also their variations for a period around 2 weeks, is what we call as Weather. The condition of these same elements over a long period of time and on a given region is what we call Climate.
What is Climate Change?
Within countries and regions there is a consistent change in climatic conditions which gave specific climatic character to the specific country or region. Within these geographical areas the climatic conditions (Climate) also did change periodically and predictably on a set pattern which we were accustomed to as the Seasons. All living things on earth, the land and the sea then can be said to have had a rhythm of existence in tune with these seasons.
What’s going wrong?
Now there is measurable and experienced evidence (rapid changes in weather and hence the climate) that the Climate is changing way beyond a set pattern and the rate of change is alarmingly increasing. Hence the rhythm of existence of all living beings, the sea and the land can be considered completely out of tune with the new rhythm of Climate Change and trying hard to cope with it. As the current changes in climatic conditions does not have a trend or a pattern the dependant systems of the earth can only adopt re-actively which greatly effects accustomed natural rhythm of things. The result of course is natural disasters (rise in sea level, melting of ice caps, land slides, floods, winds, gales, heavy loss of lives etc).
What created rapid climate changes?
This is a much debated topic. In the absence of any other closely related indicator there is a majority consensus that the accepted rapid changes in Global temperature is by far the main contributor to climate change. Hence Global warming is now seen as the closet cause for accelerating Climate Change.
Source
http://climate.nasa.gov/evidence/
Sea level rise
Global sea level rose about 17 centimeters (6.7 inches) in the last century. The rate in the last decade, however, is nearly double that of the last century
Republic of Maldives: Vulnerable to sea level rise
Shrinking ice sheets
The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost 150 to 250 cubic kilometers (36 to 60 cubic miles) of ice per year between 2002 and 2006, while Antarctica lost about 152 cubic kilometers (36 cubic miles) of ice between 2002 and 2005.
Flowing meltwater from the Greenland ice sheet
Declining Arctic sea ice
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
Visualization of the 2007 Arctic sea ice minimum
Source
http://www.treehugger.com/galleries/2008/11/natural-disasters-proof-of-global-warming.php?page=3
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