...on the subject of sharks, I just wanted to mention (Only found on 2 other threads - and not really explained) a great resource I found recently on finding out where to dive with the sharks that do remain.
After all, people need inspiration in order to take action.
Shark Watcher's Handbook (Available on Amazon)
Hardcover book
Discusses shark tourism, myth of dangers - while not dismissing it altogether.
Also discusses shark conservation / finning - though the links posted earlier will surpass the detail in the book on this subject.
But, the great thing about this book is it has 2 page spreads of hand drawn color pictures of about 20 or so of the most common sharks / sharks that divers would want to see. Including an underwater silhouette image of it (Cool!), and a text box describing where to see the shark in question at particular sites - broken down into MOST dives / MANY dives / OCCASSIONAL dives. Relative danger info is also noted. (Notably that most shark attacks attributed to Great White, Bull, Tiger, Oceanic Whitetip?) Also noting the ones that are moderate or minimal risk (Whale, the various varieties of reef sharks) If dangerous - notes under what conditions.
Those cross - references are mapped to a listing of 267 sites around the world, categorized by region. Every region is covered, the only notable missing country was Indonesia. But, Papua New Guinea is included as well as more obscure sites in Europe, Central / South America, Africa, and every place in the Pacific ocean. Specific site info is provided, with tour operators and their websites (Very helpful!), and best season to dive information based on shark type(s) and water temp, other fishlife there, and dive site description.
This handbook works like a quasi-dive guidebook. As for where sharks roam, they are usually good dive sites. Some of the sites even have notes that reveal if shark counts have decreased due to finning / overfishing.
This book was written in conjunction with the Blue Planet series I believe. it is a BBC publication. Published 2002 so very up to date. Can't recommend more highly - and I read dozens of books (diving and non) / year.
