Suppose The city of London is experiencing a surge in bicycle thefts, with reports of stolen bikes increasing by 20% in the past month. Police are urging residents to secure their bikes with high-quality locks and to register their bicycles with the local authorities to help track them in case of theft. Despite these efforts, the number of stolen bikes continues to rise, causing concern among the cycling community.
Can we infer that "London has effectively reduced bicycle theft in the past month"? Yes, no, or maybe?