Plastic never fully breaks down and is responsible for destroying ocean ecosystems around the world. As of January 1, 2017, India's National Green Tribunal has banned all plastic cutlery, cups, and bags in Delhi. As a city of of nearly 19 million people, this is great news for India, its nearby oceans, and could be a model for other large cities to follow worldwide.
Denmark has onshore and offshore wind turbines that are generating so much power that on one recent day, there was enough wind energy that it could have met the electricity needs for the entire country. It seems that Denmark is well on its way to its goal for 2020 of generating 50% of its power with renewable energy. As early as 2015, 42% of Denmark's electricity was generated by wind.