What's not talked about so much, is how photographing is making our earth dark. Every time you take a photo, your camera, film or digital, absorbs some light, which is never returned. As photographing increases, especially with all the use of cell phones, we will be losing light at increasing rates. How long before we darken our earth? This will cause less plant growth, which will be detrimental to endangered species of plants, and in turn, animals. It will also reduce the output of solar panels, reducing the amount of renewal energy available. Of course, it should reduce 'Global Warming', which may be a good thing.
So the question I see is, should we ban or tax photography?