Here below listed are the important aspects about Unit Two.

 

1. The Powerful Influence of Weather

The weather conditions of the atmosphere greatly influence people’s health, thinking and feelings. For example, different winds will affect people on physical health. Some people will get heart diseases, strokes and headaches. And temperature change is also the factor which can influence people’s health. Besides, people’s moods are also influenced by weather. Some people will feel nervous and irritable on rainy days and they will get better in they work on brighter days. Seasonal Affective Disorder is one of the effects of weather on people. The influence of weather is powerful and around us everywhere.

 

1. Global Climate Changes
2. 1)Weather and Climate

Weather means “the atmospheric conditions at a specific place and time.” It can be various everyday. And climate is“the general or average atmospheric conditions of a region.”Every year it almost stays same.

 

1. 2)Global Climate Changes

Global climate is changing slowly. And there are many people arguing that global climate is going to extreme. There are longer periods of very cold and very hot temperatures. There are more and more powerful hurricanes and tornados and blizzards. Floods and long droughts are causing greater and greater physical damage to the human communities on earth.

 

1. 3)Global Warming and El Nino

Global warming is a slow increase in the average yearly temperature of the planet. The cause is an increase of gases in the atmosphere. El Nino may cause drought in the southern and western Pacific. Blizzards, snow and long periods of low temperatures may follow in the northern regions of the globe.

1. 4)Human Activities

Some scientists believe El Nino is not the main cause of global warming. So the reason why the temperature is going up is human activities. People are more likely to use cars and at the same time there are more gases like carbon dioxide into the earth’s atmosphere.