1. When more people drive cars, we will release more carbon dioxide into the air
--> When cars are driven, more carbon dioxin will be released into the air
2. solar panels will convert solar power to electricity more efficiently
--> Solar power will be converted by solar panels to electriclty more efficiently.
3. They will use biogas for coming soon
--> Biogas will be used for coming soon.
4. they will use low energy lights to save electricity
--> Low engergy lights will be ised to save electricity
5. On the next earth day, they will discuss global warming effects
--> On the next earth day, global effects will be discussed.