Apex ocean predator and top of the food chain, studying orca can give us a good indication of how polluted our oceans really are.
"Blowhole samples taken from killer whales [in Puget Sound] have revealed fungi, viruses and bacteria living in their respiratory tracts, some of them antibiotic-resistant and once found only on land."
The Guardian looks at how cities like Seattle will be adopting 'green infrastructure' as a solution:
http://www.guardian.co.uk/environment/2012/aug/23/how-cities-nature-cut-pollution?newsfeed=true
"Blowhole samples taken from killer whales [in Puget Sound] have revealed fungi, viruses and bacteria living in their respiratory tracts, some of them antibiotic-resistant and once found only on land."
The Guardian looks at how cities like Seattle will be adopting 'green infrastructure' as a solution:
http://www.guardian.co.uk/environment/2012/aug/23/how-cities-nature-cut-pollution?newsfeed=true
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