Not a bad suggestion -- would need some way to authenticate the markings so that subsequent photos could be compared and which would we weather resistant and compatible with the materials so as not to damage the structureWhy don't you do it, since several of your posts since your return have made some reference to the fallacy of climate change. It's time we get some real data, and you look like the perfect guy for the job.
You do however, mistake my comments which downplay the Catastrophist view from my stating that climate doesn't change
The former is almost unknown among people with a background in science and technology -- its adherents and public promoters are mostly ignorant politicians. The latter view that climate never changes is also ignorant.
Climate --is just like weather except on a longer time scale -- and like weather the Climate is constantly evolving. However, one of the challenges is that our measurement systems were never designed to track these kinds of changes over long periods of time
The real questions about any observed changes in the climate are:
- is it caused solely by human emission of so-called "green house gases"
- is there a contribution from other human activities such as changes in land use
- is there a natural component
- how large is the changes compared to natural variability
- how do we adapt to any significant changes
The steps and similar ways to see where the sea is -- are a nice device to educate the public about natural variability on many time-scales