I teach Geography, in addition to Science, so I am one of the non-specialist teachers that are one of the problems with the subject.
In my defence, I do feel that I know what I am teaching, and do a lot of research for each lesson. I am also fairly enthusiastic about my lessons. I did up to Higher Geography, and loved all aspects of it.
I was intrigued when I heard on the news this morning about the call for more money to be invested in Geography, and wondered what this really meant. If it's to do with resources then I see the issue that they are constantly out of date. We have reasonably recent textbooks, but when they mention population, GDP etc, the info is often not correct. I was teaching a lesson on the EU this week, and they of course made no mention of countries which joined in the last few years. Fortunately, Wikipedia set us straight, and I was able to project this onto the board.
One of the criticisms that I have come across of the Geography Curriculum (especially at KS4) is that it is overlapping too much with Science HSW, and between the two there is too much on global warming etc., to the point that it is all too depressing. I don't teach KS4 Geography, but on reflection, an awful lot of what we teach has a very negative slant.