Re: Hi from Scotland.
To answer your question - I'm "involved with internal combustion engines despite their problems" - from a historical perspective.
The research work I'm involved with investigates the development of the motor vehicle from the late 19th century up to about the mid 1920's looking at its social and technological impact. As you probably know during these years the internal combustion engine was seen as the answer to all sorts of issues - freedom of movement, economic growth, jobs, commerce, etc, etc. To be absolutely honest, from a research point of view its a hugely interesting subject.
From the environmental perspective I'm an interested onlooker - and a supporter of those who are working towards alternative power sources for transport. Its early days yet from a museum point of view, but it won't be too long before we see the first evidence of early attempts of "environmentally friendly" transport becoming part of the collection, its only a matter of time.