http://www.guardian.co.uk/science/2005/mar/30/environment.research

Had just finished reading the article in the link above and oh my, how devastating to see the world suffering from all kinds of human activities. " Two-thirds of world's resources used up." Wow, how serious is that. I started wondering how our future will be like. Will there be enough resources in the years to come. How about our future generations? Are they able to enjoy the benefits the world has to offer?

There are a few issues brought up in the article that is causing harm not only to the world but also humans and animals. Those issues are deforestation, global warming and climate change and extinction of animals. 

In economics, we learn about scarcity. I think this article truly reflects on scarcity where humans desire unlimited wants and without careful planning before producing a good, this causes the world's resources to be "used up" so quickly. 

Deforestation. Forests around the world are now facing deforestation. Deforestation occurs because humans population are increasing and trees are then chopped down for building new houses. If it continues this way, can you imagine the world in years to come? NO.MORE.TREES.. How serious is that? Trees are our main source of oxygen and if there were no more trees, where are we getting our oxygen from? Humans will be having a shorter lifespan as we live in a world full of pollution. Humans will be suffering from respiratory or cardiac illnesses when inhaling those polluted air.

Deforestation indirectly leads to the next issue which is global warming and climate change. Global warming is when greenhouse gases (carbon dioxide gas) traps heat from the sun in the earth's atmosphere thus causing the climate change to increase. Global warming causes icebergs at the North pole to melt. The melting of icebergs is a threat to polar bears because it is their home. Global warming also causes sea level to rise. Rising sea level can be frightening and dangerous because it causes islands to disappear underwater and the death rate might increase. All these causes a change in climate is linked to the deteriorating of humans health. 

The next issue is extinction of animals. Global warming and deforestation are the reasons why animals extinct. Animals lost their habitats and become endangered species. Examples are giant pandas, Javan rhinoceros and tigers which are losing their habitat due to deforestation. Clownfish, polar bears, arctic fox, ringed seals are a few endangered species due to global warming. 

All these issues need to be controlled to sustain a peaceful planet for humans and other living things to live in. Before any good is produced, a careful planning needs to be carried out taking into consideration the externalities and what are the negative externalities that will affect the third parties.