Zombie river? London's Thames, once biologically dead, has been coming back to life
Oxygen levels, necessary for fish, are up and dangerous phosphorus levels are down in the historically polluted waterway. But a new report points to climate change as a possible wildcard.
In 1858, sewage clogging London's Thames River caused a "Great Stink." A century later, parts of the famed waterway were declared biologically dead.
But the latest report on "The State of the Thames" is sounding a surprisingly optimistic note.
The river today is "home to myriad wildlife as diverse as London itself," Andrew Terry, the director of conservation and policy at the Zoological
