Natural lab shows sea's acid path

Call to settle ocean care dispute
Governments are urged to agree measures to protect oceans and the sea floor at a UN conservation meeting.

Climate secrets of marine snail
Tiny sea creatures called pteropods may teach scientists about how climate change will affect the oceans.

Slow progress on ocean protection
Two year after pledging to protect 10% of the oceans, governments have protected less than 1%, a survey finds.

Final plea on Earth observation
Leading Earth observation scientists urge Gordon Brown to back Europe's environmental monitoring project, GMES.

Rare penguin took over from rival
Human arrival in New Zealand led to the extinction of one penguin species to the advantage of another, scientists suggest.