DAN Member Profile: John Thompson
DAN member John Thompson shares why he is a DAN member and what he values most with the organization. Thompson also discusses his work with SUDS.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Do You Know What You’re Breathing
A rebreather diver respires an artificial atmosphere that changes dynamically with depth over the course of a dive.
A Perfect Storm of Warm
Thanks to warming ocean temperatures, animal encounters have changed and increased. Read about the unique sea creatures divers are interacting with.
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Trinidad’s Leatherbacks
This 100-million-year-old species is not your ordinary turtle. They are one of the world’s largest reptiles and travel the globe because of an evolutionary adaptation.
Twenty-Two Ancient Shipwrecks Found in Greece
On Greece’s coast, ancient shipwrecks were found dating back to Roman times. Ancient shipwrecks are a different treasure than simply diving regular shipwrecks.
A Different Light
LED lighting can be used successfully for underwater still photography thanks to advancements in technology. Learn how to harness the power of LED lighting for great images.
Sunscreen Pollution
While helpful for humans, sunscreen is detrimental to corals and underwater environments.
Shooter: Zena Holloway
Zena Holloway has evolved into one of the world’s top commercial underwater photographers in a circuitous and nontraditional fashion. Today she is one of the most creative and in-demand producers of underwater fantasy images in both stills and video. Her client list includes Nike, Speedo, Umbro, Sony, Jacuzzi as well as publications such as GQ, Observer Magazine and How To Spend It.
Defensive Dive Profile Planning
Decompression safety may be achieved by staying within dive computer or dive table limits, but decompression sickness (DCS) can develop even after dives that remain within prescribed limits. This article will discuss concepts important for conservative practices, some of the pitfalls that must be overcome, and practical strategies for defensive dive-profile planning and implementation.
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