Page last updated at 13:25 GMT, Saturday, 24 October 2009 14:25 UK

Environmental protest at Holyrood

Protesters outside Holyrood
The protesters claim 350 parts per million (ppm) is the most carbon dioxide there should be in the atmosphere

About 100 environmental campaigners have gathered outside the Scottish Parliament to call for decisive action against climate change.

Organisers said they were joining participants in more than 150 countries across the world for the International Day of Climate Action.

The protest was coordinated by the 350.org group in a bid to urge world leaders to cut carbon emissions.

It comes six weeks before a UN climate change conference in Copenhagen.

The protesters formed a human banner in the shape of the number 350 - a reference to claims that 350 parts per million (ppm) is the most carbon dioxide the planet can safely have in its atmosphere.

The target of reducing carbon dioxide levels to 350ppm has already been endorsed by 89 countries, they said.



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