Caring for Our Earth
Water protection
We all know that water is very important in our life.
All kinds of beautiful water
Water scarcity and pollution has become one of the most important things in recent years. In this chapter we’ll discuss both fresh water and wastewater treatment, either for reuse or disposal in the environment "without polluting it. "
volcanoes pollute the earth's atmosphere naturally.
What caused the air pollution?
• 2. people • The most serious kind of air pollution comes
from people. Factories, power stations, and vehicles exhausts pump harmful gases into the air, contributing to global warming, causing acid rain, and destroying the ozone layer.
2. Particulate matter(PM2.5)
A kind of statistics about the diameter of matters we can breathe in.
The most important element of the air pollution
• 1.carbon dioxide(CO2) • 2.carbon monoxide(CO) • 3.suldur dioxide(SO2) • 4. ……
Is it a curse for us?
Bring them back to our life!
What do you think of it?
Aren’t we grieved?
Water pollutiial losses
Aren’t we WHAT DO YOU THINK OF IT ? d• angerous?
now.
Let’s care for our home
These views may be just memories
Long long ago,our mother earth is an amazing planet with deep blue water and sky.There are kinds of wild animals which had a happy life at the sake of god.
The pollution in cities
Smoking cigarettes
Some important point about air pollution
1.Air pollution index.(API)
Air pollution index is a group of numbers which show how serious the air pollution is.
Drought Pollution
NOW
Approximately 300 million nationwide have no access to clean water. Furthermore, over 700 million Chinese drink fetid water below World Health Organization standards. Almost 90% of underground water in cities are affected by pollution and 80% of China’s rivers fail to meet standards for fishing. Almost all of the nation's rivers are considered polluted to some degree, and half of the population lacks access to clean drinking water .Ninety percent of urban water bodies are severely polluted.
➢Automobile exhaust
➢Idustrial waste gas ➢ Incinerted gas
➢The lose caused by pollution occupy 3.05% of all GDP.
Reasons of death Malignant tumor(恶性肿瘤） cerebrovascular disease（脑血管病）
Water pollution manage water pollution
Take action now!
Air pollution
What caused the air pollution?
• 1. nature • Sandstorms and the dust and gases from
What is the reaction of our countries over the world?
• Kyoto Protocol!
Kyoto - success or failure?
• Kyoto should be viewed as a stepping stone to more drastic action. And that action is required