Nudging me to save tissues (trees)

This is how they nudge me not to not use a tissue in the toilet (see picture). I found this in a toilet in the Indian Institute of Management Bangalore (IIMB). The sign reads "Each day 27,000 trees are cut for producing tissue papers. Use handkerchief as much as possible". Since I don't carry a handkerchief with me, I wiped my hands on my shirt and walked out of the toilet. The nudge works!




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