Diesel Engines will be replaced by hydrogen engines

HYDRAIL RAIL SYSTEM:
                  As the fossil fuels are getting decreased in their quantity,we people must find an alternative one for the fuels.one of the greatest and cheapest method is the use of fuel cells,which is becoming a successful one in the present era.

If you can run a car or a truck with a help of fuel cell,then why can't we built a train locomotive by using fuel cell.It is 100 percent possible,but still not in existence.I expect it will also be invented in a few years.

Hydrogen is one of the most abundant element in earth.we can obtain hydrogen either from atmosphere or from water source.

Now how to use this hydrogen in train locomotive.we can use either hydrogen to burn in an IC engine or else we can build a hydrogen oxygen fuel Cell.the fuel cell is the best method because  the by product is water and it's also pollution free,whereas burning may cause pollution.

And also a fuel cell has a capacity t

Thus using diesel is not possible in the forth coming  decades and we must adopt and change the technology from today.