Monday, November 25, 2013

CLIMATE CHANGE

Sa bawat paglipas ng araw ay may nangyayari sa ating mundo. At ngayon, kawawa ang mga taga Visayas dahil sa napakalakas na bagyong sumalakay sa kanilang lugar ang bagyong Yolanda. Paano ba natin malalampasan ang mga ito? Kasalanan rin kaya natin kaya tayo binabagyo,binabaha at kung anu ano pa?

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 such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as global warming.

On the broadest scale, the rate at which energy is received from the sun and the rate at which it is lost to space determine the equilibrium temperature and climate of Earth. This energy is distributed around the globe by winds, ocean currents, and other mechanisms to affect the climates of different regions.

Factors that can shape climate are called climate forcings or "forcing mechanisms". These include processes such as variations insolar radiation, variations in the Earth's orbit, mountain-building and continental drift and changes in greenhouse gas concentrations. There are a variety of climate change feedbacks that can either amplify or diminish the initial forcing. Some parts of the climate system, such as the oceans and ice caps, respond slowly in reaction to climate forcings, while others respond more quickly.

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