Stock Photo - 23 February 2023, Hamburg: Andreas Treß, principal of the Molkenbuhrstraße elementary school, holds the ""Silver Consumer School 2022/2023"" plaque in the school building. Federal Environment Minister Lemke honored the school as a so-called consumer school in the silver category. At the elementary school, for example, children develop energy-saving measures for the school, tend apple trees and learn how to use digital media. Photo: Marcus Brandt/dpa. - Hamburg/Hamburg/Germany

Stock Photo: 23 February 2023, Hamburg: Andreas Treß, principal of the Molkenbuhrstraße elementary school, holds the ""Silver Consumer School 2022/2023"" plaque in the.

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