What is global warming?
Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. A warmer Earth may lead to changes in rainfall patterns, a rise in sea level, and a wide range of impacts on plants, wildlife, and humans. When scientists talk about the issue of climate change, their concern is about global warming caused by human activities.
http://www.epa.gov/climatechange/kids/gw.html
What causes global warming?
Global Warming is a major issue due to the industrialization and progress by humankind since the past few years According to the solar variation theory, the sun has been gaining strength and is at it's strongest since a sixty years. Therefore, it may now be acting as a cause of global warming. Sunspots are also said to be a cause or catalyst for Global Warming. Recent reports suggest that the number of sunspots in an area directly affects the amount of time the nearby earth takes to cool.

http://www.buzzle.com/articles/what-causes-global-warming.html
What are the effects of global warming?

The effects of global warming and climate change are of concern both for the environment and human life. Evidence of observed climate change includes the instrumental temperature record, rising sea levels, and decreased snow cover in the Northern Hemisphere. To reduce the risk of large changes in future climate, many countries have implemented policies designed to reduce their emissions of greenhouse gases.

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Everyone, study hard during this 1 week holiday, exams r coming real soon!!! btw, someone plz update this blog. Cannot be me always rite? wanna noe the msn & password? add me in msn n ask me :D. TYVM 4 ur attention. Jia Yous!

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