What's Up Survival Kit
Green is Power. Ask Hulk
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Renewable energy doesn't cost the earth
Photo: Colourbox.com
Don't blow it. Good planets are hard to find!
Model photo: Colourbox.com
Being wasteful is just trashy!
Photo: Colourbox.com
Wind, Water, Sun: energy for the long run.
Image: © picture alliance / dpa
Being cool has never been so hot!
Image: © picture alliance / dpa