It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
(visit the link for the full news article)
An international team of scientists has returned from the southern ocean after conducting the biggest experiment into geo-engineering.
But environmental groups say meddling with the oceans to try to counteract the effects of global warming could easily backfire. David Shukman reports.