This is a nice article about your "travels" through Oahu. However it has nothing to do with evidence that climate change is primarily athropogenic.  You've nicely described how things change but that doesn't mean that man is the cause of it.   Here's an example of natural climate change: go visit Ephesus in modern day Turkey for example and you'll notice the sea is nowhere near it, yet in ancient times it was a port city near the Mediterranean. 

Yes we should mitigate the inevitable changes that are slowly and predictably coming, like rising sea levels ( which have been rising for over 24,000 years). Yes we should work towards a cleaner planet.  

But no, we don't cry wolf and put the world on hold due to an imagined coming disaster of which we have zero reliable, predictable scientific evidence to support.