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The absorbtion of CO2 may have slowed global warming, but there has been a resulting change in seawater chemistry. To understand why the effect of increasing atmospheric CO2, which leads to increased absorbtion of CO2 in sea water, is important, it is necessary to understand some of the chemistry of carbonic acid and its salts. However, before we can discuss the effect of this acidity, we must have a useful description of what we mean by acidity and acid strength. The most common and useful unit to describe the magnitude of acidity is the pH value.
Read moreConservation is not an empty word, it actually helps. Even though the list of threatened marine species continue to grow, there are some remarkable success stories of the recovery of animal populations.
Read moreWhat constitutes an emergency and what kind of emergency may I face?
What do I need to bring in order to reasonably deal with possible emergencies?
Read moreRecently, X-Ray Magazine got the chance to talk to Rob about Sharkwater and his experience filming it. Despite all the awards his film has won, he hasn’t let it go to his head. Impressively, Rob was down-to-earth, accessible, and interesting.
Read moreAlso, a diver may be able to maintain his depth at the bottom by lightly finning. However, finning too hard and for too long could lead to excessive CO2 production.
Read moreIt is reliable, more or less foolproof, and its simple construction is very robust. These are good properties to have when one’s underwater breathing depends on them. However, as we will see, there are also a number of disadvantages.
Read moreThe history of diving in the town began in earnest in the early 1960s when Egersund Frømandsklub [frog man club] was founded. The club folded a couple of years later, but in 1974, Egersund Dykkeklubb [diving club] was founded.
Read moreWho is Richard Pyle really? A biologist or a rebreather diver?
Read moreAs with any topic, there are various degrees of understanding to underwater video.
Read moreI arrived at Sharm El Sheikh airport to be met by my deep diving buddy, Leigh Cunningham, who drove me to my hotel.
Read moreAs pure water is only a liquid between 0ºC and 100ºC, it is not surprising that life, at least as we know it, which depends on water, is to be found on earth where this condition obtains, though most life on Earth lives at temperatures of less tha
Read moreOn the other hand, interpretations plays a big role too. Just think of the caricaturist with his canny ability to make a couple of casual pen strokes who everyone then instantly recognise as George Bush or Dalai Lama.
Read moreFew instructors, however, remember to mention at this point that dive computers or bottom timers can do all this, easier faster and safer.
Read moreBut what is coral bleaching actually? No, it is not mum that has stinted bleach over the lovely colourful tropical corals….although it looks like it. The explanation is quite different.
Read moreDives have that special flavour that result from the meeting of Atlantic species with subtropical ones. Having dived in the rest of Canaries, I am struck by the diversity of the fish life around Hierro.
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