1 :  People will develop alternative sources of energy.

Alternative sources will be developed of energy
2 : With that device people will change the wave energy into electricity.

With that device the wave energy will be changed into 

3. People will construct more wind turbines in that area to produce electricity.

More wind turbines will be constructed in that area to produce electricity

4. Scientists will find solutions to reduce pollution in our city.

Solutions will be found by scientists to reduce pollution in our city

5. Governments will make more regulations to reduce industrial pollution.

More regulations will be made to reduce industrial pollution by

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1. Alternative sources of energy will be developed.
2. With that device the wave energy will be changed into electricity.
3. More wind turbines will be constructed in that area to produce electricity.
4. Solutions will be found to reduce pollution in our city by scientists.
5. More regulations will be made to reduce industrial pollution by governments.