March 2023
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A quarter of the world's surface, lit up with lights.![[creative commons]](/images/creativecommons_16.png)
Publication date: 2023-03-15
CLEAN wants to hear from you! An option to share how you are making use of CLEAN in your classroom or your work by taking a moment to upload a short testimonial - either a video or a written statement.
March 2023 PDF (Acrobat (PDF) 480kB Apr4 23)