Greenhouse gas `altering` ocean food chain

Increasing levels of carbon dioxide in the atmosphere could be weeding out the bacteria that form the base of the ocean`s food chain and selecting certain strains for survival, a new study has suggested.

Plastic from synthetic clothes threaten food chain

Microscopic plastic debris that are released from washing synthetic clothes are accumulating in the marine environment.

Loss of large predators hits ecosystem

Large animals shaped the structure and dynamics of ecosystems.

Radioactivity leaking from Japan could contaminate food chain

Exposure to radioactivity has the potential to cause various cancers.

`Declining algae threatens ocean food chain`

The algae in the oceans has declined over the last century which threatens ocean food chain.

Anti-depressants in sea water could upset food chain

Rising levels of anti-depressants in sea water could upset the vital food chain.