Change In The World: The Issue Of Climate Change

In the old days, the biggest challenge facing mankind was how to feed people. Until four hundred years ago, we live like every other animal in the limits of food supply depending on the sun to calls photosynthesis and provide the food we eat. Now the biggest problem we face is how to feed all those people without doing yet more damage to the environment so that our grandchildren and their grandchildren have something to enjoy. One of the key challenges that faced at the moment is the issue of climate change. So what caused the phenomenon?

Since from the last ice age around eleven thousand years ago, the earth climate has remained relatively stable with global temperatures averaging about 14 degrees Celsius, however in the last century. Our climate has started to change rapidly. The evidence points to a long-term change in our climate which is happening at an unusual rate. But how can we prove if these changes are natural or whether they come from us?

Nature may know all the answers, but science can explain all of these things. Science is important because it helps us to understand the natural world. During the early era, science brought ideas around maths, architectures and theories to our world.

According to statistics, The air quality of some cities reaches the historically highs, especially in China. Due to the global warming that comes from the carbon pollution, as the planet warms, we will have increases smog which will lead to more premature deaths, heart attacks and other tropical diseases in the world. Lately we will have extreme weather events and all those threaten human lives. This has been aggravated by burning or throwing waste and rubbish. An easy way to reduce pollution on our planet is recycling. In 2005, New Zealanders recycled 39,100 tonnes of plastic (Environment NZ 2007 report). After you toss it into the recycle bin, do you ever wonder where it