Global warming

The global warming, panic or reality?


Global warming is already under way. The evidence is vast and the urgency of taking action becomes clearer with every new scientific study. Some of the most obvious signs are visible in the Arctic, where rising temperatures and melting ice are dramatically changing the region’s unique landscapes and wildlife as well as people’s lives and livelihoods. Across the globe, other early warning signs include melting glaciers, shifting ranges of plants and animals, and the earlier onset of spring.



1. The message of the video:

We are destroying our planet with a lot of factories and irresponsible people, that pollute rivers and nature, we're cutting a lot of threes of the forest so we are killing a lot of wild animals. 
We are exploiting very natural resources like petrol, so in years this energy ends and we have a very big problem if we do not start to using  renewable energy for all people. 
If we not improve the respect of earth and nature, we not survive.

2. Answer the questions:

1- What is global warming?
Is the gradual increase in the overall temperature of the earth's atmosphere due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.



2- What is the process involved in the greenhouse effect?
The "greenhouse effect" is widely discussed in the media, and although its details are complicated, its principles are not difficult to understand. Without a greenhouse effect, radiation from the Sun (mostly in the form of visible light) would travel to Earth and be changed into heat, only to be lost to space. This scenario can be sketched as follows: 
Sun’s Radiation → absorbed by Earth → some re-radiated to space as heat → some trapped by the atmosphere








3- What signs warn us about global warming?
The climate change.



4- Explain: Global warming, panic or reality?
Absolute reality, because we are experiencing the effects of climate change and more.



5- What can we do to stop the global warming? Suggest 5 ideas
-Use renewable energy
-Travel with bicycle
-No contaminate the rivers
-Cultivate orchards
-Travel with electric cars