Climate=Health is a brilliant initiative run by the Norwegian Medical Association. It is a campaign focusing on how climate change will impact health, both worldwide and locally.
From January to March they are arranging a comprehensive competition with great prices for the winners! Suitable for everyone who has a good idea about how to reduce emissions of greenhouse gases. Globally or locally! Or maybe both?
If you're not so steady in Norwegian, I suggest you send in your idea in English or use Google Translate. Visit Climate=Health's website (in Norwegian) here!