jueves, 21 de febrero de 2013

Enviromental Problems 1

CLIMATE CHANGE:

 *The climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions, or in the distribution of weather around the average conditions. 

  *Climate change is caused by factors that include oceanic processes , variations in solar radiation received by Earth, plate tectonics and volcanic eruptions, and human-induced alterations 
of the natural world; these latter effects are currently causing global warming, and climate change is often used to describe human specific impacts.