The face that the wold is getting warmer should definitely concern us, but we shouldn't exaggerate the problem. AT the end of the day. there is a strong possibility that the dangers are not as great as we fear.
There have been computer predictions that in fifty years' time parts of Europe could be under water. With higher temperatures, the polar ice caps are melting and making sea levels rise. Yet many scientists say that the global climate is too complex for current computers to predict and that we shouldn't believe these predictions.
Most of us think of global warming as something that is bad for our planet. Every time you open a newspaper, there is an article about how the temperature on Earth is rising, causing floods, droughts and perhaps even earthquakes. Another common complaint is that winters used to be cold and summers hot, but now there Isn't much difference between them.
Scientists say that global temperatures have risen 0.6 degrees centigrade over the last 140 years. The question is, should we see this as something unnatural? Climate change is not something new. When talking about global warming, we should look at more than the last century. This is because Earth has been in existence for billions of years, and during that time there have been both warm periods and ice ages.