Global warming - a gradual increase in the temperature of the Earth's surface caused by the greenhouse effect and causing climate change on a global scale. - презентация

1

2 Global warming - a gradual increase in the temperature of the Earth's surface caused by the greenhouse effect and causing climate change on a global scale.

3 Over the last hundred years the average temperature over land has increased by more than half a degree. Scientific opinion is that the average temperature of the Earth has risen by 0,7 ° C.

4 Much of the warming observed over the past 50 years due to human activities primarily emissions of gases that cause the greenhouse effect.

5 Global climate change is not limited to warming. There is also a change in the density of the saline oceans, increase humidity, the changing nature of rainfall and melting arctic ice.

6 In addition to sea level rise increase in global temperatures will also lead to changes in the amount and distribution of rainfall.

7 The result can pochastishaty natural disasters such as floods, droughts, hurricanes and others.

8 Some researchers believe that global warming - is a myth, some scholars reject the possibility of human impact on this process.