Oceans

Antarctic instability 'is spreading'

25 years of ice loss in the Antarctic. Video, 00:00:3425 years of ice loss in the Antarctic

Deepest-ever sub dive finds plastic waste

Autonomous boat makes oyster run

Hundreds of thousands of viruses in oceans

Can you spot ocean plastic from space?

Sentinel satellites track ocean plastic. Audio, 00:06:07Sentinel satellites track ocean plastic

Satellites used to protect rare sharks

Shark's-eye view of a great white hunting. Video, 00:00:53Shark's-eye view of a great white hunting

Satellite plane-tracking goes global

Blue Planet producer defends turtle release

Drilling climate history in 'Iceberg Alley'

Forest 404. S6: Pan’s Dwindling. Audio, 5 minutesForest 404

Rogue waves 'becoming more rogue'

'Stop plastic pollution or face disaster' warns WWF

Sinking of Viking 1. Video, 00:00:54Sinking of Viking 1

The Andrey Dolgov fleeing. Video, 00:01:39The Andrey Dolgov fleeing

Shackleton ship search called off

Search for Shackleton ship starts. Audio, 00:03:33Search for Shackleton ship starts

Search for Shackleton's lost ship begins

Europa: Our best shot at finding alien life?