International Day of Happiness was observed on 20 March 2016 across the world. Red, the leader of the Angry Birds mobile game characters, was as appointed by the United Nations an envoy to inspire climate action toward a sustainable and happier future for all.

• Red’s appointment, as Honorary Ambassador for Green, is part of a UN campaign launched on 18 March 2016 in partnership with the globally renowned characters to make a direct link between tackling climate change and people’s happiness and well-being on the occasion of the International Day of Happiness.
• The campaign, in partnership with Sony Pictures Entertainment, the UN Development Programme (UNDP) and UN Foundation, asks the general public across the world to make the Angry Birds happy by taking actions on climate change.
• The campaign also requests the public to share their photos and commitments on social media platforms using the common hashtag #AngryBirdsHappyPlanet.
• Since 2013, the United Nations has been celebrating the International Day of Happiness as a way to recognise the importance of happiness in the lives of people around the world. Concept behind the International Day of Happiness.
• 20 March was declared as the day of International Happiness following a Bhutanese Concept that was coined by the fourth king of Bhutan Jigme Singye Wangchuck in 1970’s.
• It was when the country for the first time adopted Gross National Happiness (GNH) over Gross National Product (GNP) as its major goal.