31 August 2012 Last updated at 07:16 ET
Richard Black, Environment correspondent Article written by Richard Black Environment correspondent

Farewell and thanks for reading

This is my last entry for this page - I'm leaving the BBC to work, initially, on ocean conservation issues.

While this page will no longer be updated, it will stay here for reference.

I hope you've enjoyed reading my blog down the years - I've enjoyed writing it, and have appreciated your comments.

To keep up to date with news and views about the environment, I hope you'll keep reading the science and environment pages of the BBC News website, and my science correspondent colleagues Jonathan Amos and David Shukman.

Richard Black, Environment correspondent Article written by Richard Black Richard Black Environment correspondent

Geoengineering: Risks and benefits

18:15 UK time, Friday, 24 August 2012

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