jump to navigation

Ozone layer ‘recovering’ 2006-06-22

Posted by clype in Science.
trackback

The ozone layer is showing signs of recovering — thanks to the ban on 'CFCs'. It is nearly 20 years since harmful chlorine gases — then common in 'fridges and aerosols — were outlawed.

Ozone levels are now stable and may have even risen slightly over the past decade, scientists revealed.

Natural factors, such as a lack of volcanic eruptions, have also helped.

Ms.Betsy Weatherhead, who led the study, said:

[picture of betsy]
'The ozone layer is responding to decreases in chlorine levels in the atmosphere due to the levelling off and decrease of "CFCs".'

However, the expert at the University of Colorado in Boulder, USA, warned:

'We're not "out of the woods" yet and the ozone recovery process still faces a number of uncertainties.'

She said other chemicals remained a danger, such as greenhouse gases from cars and nitrous oxide, produced by fertilisers.

Advertisements

Comments»

No comments yet — be the first.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: