London river was declared 'biologically dead' in 1957; decades later it is filled with sharks and seals
- In 1957, parts of London's famous River Thames were in such bad shape that scientists declared them 'biologically dead'.
- The water had been starved of oxygen and decades of sewage and industrial pollution had made it extremely difficult for aquatic life to survive.
- About 70 years later, the waters are now brimming with sharks, seals, seahorses, eels and many other aquatic organisms.
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- In 1957, parts of London's famous River Thames were in such bad shape that scientists declared them 'biologically dead'.
- The water had been starved of oxygen and decades of sewage and industrial pollution had made it extremely difficult for aquatic life to survive.
- About 70 years later, the waters are now brimming with sharks, seals, seahorses, eels and many other aquatic organisms.
Sources: Times of India