Global Warming

The global warming is a temperature phenomenon that increases the atmosphere, earth and oceans’ temperature. This aspect has become worst during the last decades, especially during the 20th century (http://en.wikipedia.org/wiki/Global_warming, 2005). There are different causes and consequences; some of them propitiated by us and some other by the nature.
Many people think the global warming is only the result of human activities, but this is not a true. For example, the solar variation and greenhouse gases are the most important natural aspects of global warming because they produce temperature changes, resulting in heat increasing during summer and extreme coldness during winter.
We can also say that human responsibility has had a more impacting effect, because our negligent acts have increased the occurrence of this phenomenon and people have other tools to stop the increasing of temperatures and do not use these tools; for example, people produce more and more garbage and do not recycle, which is a good tool to stop the increase of global warming.
Some important effects regarding global warming are for example: many people dying because of extreme temperatures, many children with breathing problems (asthma), animal species extinction (golden toads) among others.
If we become aware of this problem and take actions, we will be able live many more years enjoying our nature and a healthy world.