Oceans produce most of the oxygen we breathe, and they are threatened by climate change.
Every day, enough of the tiny plastic spheres wind up in aquatic environments to cover more than 300 tennis courts.
We eat wild fish without a thought, and it's having a devastating effect on ocean ecosystems.
Scientists say the biggest extinction event ever was caused by comparable rate of cO2 emissions to those seen today.
A global survey estimates there are 5.3 trillion pieces of plastic circulating on ocean surfaces.
The melt rate has tripled in just the past 10 years.
The iconic sea creatures are dying off, and no one knows why
The discovery of damaged coral far from the spill's epicenter signals widespread damage.
The move would double the area of ocean protected globally
Rolls-Royce are developing unmanned ships - but are they the future or just an easy catch for pirates?