What is the history of selective catalytic reduction (SCR) technology?

SCR technology has been used in automotive applications for several years in Europe and is currently being introduced in North America to meet EPA 2010 emissions requirements for heavy-duty diesel engines for on-road applications. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.