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Canal network’s ‘ecological footprint’ mapping shows its value for nature
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Cooking oil used in takeaways 'deliberately dumped' in London canal
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Waterways charity braced for huge clean-up after storms
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Canal weeds removed after people mistook them for grass and fell in
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Regent's Canal is the 'cleanest it's been in years' at Mile End
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London canals turn green after 'explosion' of duck weed forms on water
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