Did you know…

Although two thirds of the Earth's surface is covered with water, only less than 1% of the world's water is fresh water..
During photosynthesis, green trees absorb carbon dioxide and release oxygen - one oak tree provides enough oxygen for two people per day.
Half of the Earth's rainforest has been cleared in just 20 years!
Currently, the tropical rainforests are being destroyed at an approximate rate of one acre per second.
Scientific observations show that the global sea level has risen by about 10cm over the last 100 years. The predicted increase as a result of the emissions of greenhouse gases (carbon dioxides, CFCs, methane, etc.) from human activity is about 20cm by the year 2030, and 65cm by the year 2100. Global warming will cause thermal expansion of the oceans and melting of glaciers and polar land ice sheets leading to a rise in sea level.
The major causes of ozone depletion are man-made chlorine and bromine compounds, particularly the CFCs (chlorofluorocarbons) and halons. When CFC molecules arrive in the upper atmosphere, UV-radiation from the sun splits off their chlorine atoms. Each chlorine atom can destroy up to 100,000 ozone molecules!
It is estimated that four hundred bird and mammal species have died out since the seventeenth century. Many others, such as the snow leopard, are also becoming increasingly threatened. At present, it is estimated that one species becomes extinct every hour!