Saturday, October 21, 2006

Climate - it will get worse before it gets better... if it ever does.

Remember the ozone hole? That was way back when global warming was not such a hot issue. It is not much talked about any more. After all, mankind was able to ban the use of ozone-depleting chemicals, and equipment that contain these chemicals. That was fairly easy. It only concerned a handful of nations - all in the in developed world – and just a handful of products that were fairly easy to change.

Yet look at the damage done – new data from both NASA and the (US) National Oceanic and Atmospheric Administration (NOAA) show that the ozone hole over Antarctica is still getting wider and deeper.

"We now have the largest ozone hole on record for this time of year," said Craig Long of NCEP. As the sun rises higher in the sky during October and November, this unusually large and persistent area may allow much more ultraviolet light than usual to reach Earth's surface in the southern latitudes.

This may be a surprise to most of us, but it is not to scientists:

Damage to the upper atmosphere caused by the emission of fluorocarbons won't likely return to the level it was at in 1980 until 2065, according to scientists.

And in fact, it may still get worse, but hopefully not for long:

The maximum depletion of the ozone should occur between 2000 and 2010 before a slow recovery begins.

Yes, nature works on different pace than we do and there is nothing we can do about that. So, imagine how long it is going to take before we can reverse global warming, that is if we ever agree on anything .


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