Now-a-days even the railway tracks can be electrified to reduce the consumption of diesel. The diesel locomotives are frequently being replaced by electric locomotives which will reduce the usage of diesel in railway sector, and conserve that much of resource. Even an individual coach can be fitted with solar panels on their top so that each coach will be able to generate their own energy.
Automobile vehicles are the main concerns for acid rains. I recently got to know about a person who used kind of purifier in exhaust pipe of automobile vehicles which separated carbon particles from the exhaust. He used these carbon particles to make leads of pencils. This is a innovative solution for CO2 pollution in air, by doing so we can also start a initiative to reduce global warming.
In some areas where heavy rainfall occurs at that place the excess water destroys the crops. So, in that case we can make a alternative rows of Solar Panels which are perpendicular to field and are connected with each other through a system, with a common switch. When heavy rainfall occurs, and the farmer thinks that the crops have got sufficient water then we would switch on the system of Solar panels which would be covering the crops making a gentle slope towards a small water reservoir, which stores water during excess rain and can be used afterwards when needed in the field.
Similarly, when crops don't need excess sunlight that time also that system of solar panels would be useful for generating electricity, and that also can be used later on for motors for drawing wells.