Scuba Headlines:
Air travel in the tropics is worse for climate
A typical flight to the tropics has a greater impact on global warming than a flight in temperate latitudes. As well as producing carbon dioxide and contrails, planes also produce nitrogen oxide, which triggers both the creation of the warming gas ozone, and the destruction of another greenhouse gas, methane. In mid-latitudes, these ozone and methane reactions cancel each other out and you get zero net warming from nitrogen oxide emissions. But the brighter sunlight in the tropics is very efficient at converting nitrogen oxide to ozone - in fact it creates ozone five times faster than in the air of mid-latitudes
Issue 98 of SCUBA News Now Online
In this issue: Red Sea competition results, ocean facts, diving news from the Med, Australia, Mexico, New Zealand and Britain plus the latest underwater research findings.
ROV Finds New Coral Species
Researchers on the third-largest atoll in the world, the Saba Bank in the Netherlands Antilles, have discovered and collected two new species of soft corals (gorgonians) and documented severe anchor damage with the aid of a Remotely Operated Vehicle (ROV) from Seabotix. Experts collected 40 species of soft corals, seventeen of which were collected using the ROV.
the diver go very deep in the water without worrying about coming up for oxygen.
Next of the facts about is that you need specific diving apparel to protect your body and allow you to swim easily. Such apparel includes wetsuits, gloves, hoods, computer watch, etc. The next fact about is that nearly anyone can be certified for scuba diving. More than one million people get certified for each year. As long as you can put on a heavy tank filled with compressed and dive down deep, you can become certified. The thing that scares most people away from is that breathing through the rubber tube connected to the air tank is the only way to stay alive that deep in the water. People have a fear that something will go wrong, but it is rare that something does.
The next of the facts about is that the diver must make a decision on what type of underwater adventure would be preferred. You could dive in warm or cold water, or explore locations of shipwrecks. If you are on a cruise or in other specific instances, you may not have to get certified before going scuba diving. In cruises to the Caribbean, Acapulco, and the Florida Keys, you can get a one day crash course on before you go exploring.
If you want to become a serious diver, you will need to know the mental and physical facts about before pursuing the sport. Physically, you will need to look at your swimming, breathing, and equalizing abilities. You need to be able to swim well, not only for exploring, but also in case of an emergency where you need to be rescued.
Breathing-wise, you need to be able to breath solely through your mouth. This is one of the most important facts about scuba diving, because otherwise you won't be able to stay under water. When it comes to equalizing, you need to know how to "pop" your ears. When you go deep in the water, there is a lot of pressure that builds up in the ears, and so you must "pop" your ears in order to equalize the pressure. To do this correctly, you will need to consult your scuba instructor or a doctor.
The last of the facts about is knowing whether you have any physical conditions that might limit your ability to scuba dive. Such conditions include being overweight, fatigued, having diabetes, heart conditions, or any other ailments, and prone to drowning. It is always a good idea to get a physical done by a doctor before scuba diving.
Mike Walker is webmaster of BigScubadiving.com, which tells all about scuba diving
from instructions to scuba diving vacation. You can read or print out almost anything about scuba diving
from instructions to scuba diving adventure vacation.
