In reply to ian2u:
The point of the environmental aspect to the ML syllabus is that the candidate has learned about the many facets involved through active participation and personal interest over a number of years.
I agree that it would be very convenient to simply be able to pick up a book and read the chapter titled "All you need to know for the ML Environment paper". However, this goes againt the ethos of what this award is about.
Assessors are looking for an understanding and awareness of many different issues. These include local history, folklore, geography, geology, environmental problems and more.
A candidate does not have to an expert in any of these, but show that they have taken an interest, learned about the area(s) they are leading groups in and can enthuse others in these aspects.
If you are concerned about not knowing enough I would suggest two things. First of all go for a walk on your own in the area you are being assesed, ie Snowdonia, Lakes, wherever. Stop every so often get out a notebook and write down all you know about where you are. You will probably be quite surprised!
Secondly, go to a library, local bookshop / giftshop and do some more background reading. It is the breadth of knowledge as opposed to the depth of knowledge on one or two subjects that is important.
Hope this helps,
Rich White.