Officials issue guidance saying the ammonia in animal urine should be watered down to stop it corroding bark
A neighbourhood in Vienna has introduced guidelines for dog walking, including the use of bottled tap water to rinse away urine and protect vulnerable trees.
Neubau, an up-and-coming, densely populated district dotted with cafes and galleries, rolled out the Schönes Gassi (nice dog walk) campaign this week.
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