Since 2007, every year in late March the world celebrates WWF’s Earth Hour with a global voluntary environmental action of switching off the lights. As part of this year’s Earth Hour global celebration slated for March 31 (8.30pm–9.30pm) people all around the globe are invited to participate in a new activity, the ‘I Will If You Will’ activity, which encourages them to make commitments and promise to do something unusual if the others will pledge to take ‘green’ actions’ to save. The new platform, created in partnership with Leo Burnett and launched at youtube.com/earthhour, is open for everyone who wishes to inspire their friends, family and just people around to set personal sustainability goals.

A bunch of positive and negative things can happen within just one hour, one can get yet more in a single day—to say nothing about seven billion people living on the planet now. Vimeo, WWF, UN, Water.org, American Red Cross, The International Red Cross and Red Crescent Movement and around 60 humanitarian organizations are supporting the One Day on Earth project, which is launched to showcase the life of people across the globe in 24 hours. Everyone is invited to contribute their voice to the project by sending in footage about how they and people around them live on 11.11.11. The registration is now running on the OneDayOnEarth.org website.

Polar bears have been Coca-Cola’s for almost a century, and now they really need the brand to help save the endangered animals from extinction. The iconic brand has teamed up with WWF, its longstanding partner in nature focused activities, to launch the new campaign dubbed Arctic Home, encouraging people across the USA to contribute to the polar bear conservation effort during winter season. The brand is making the initial donation of $2 million to WWF, hoping to raise up to $1 million through consumer texting donations. To spread the message across the nation, the brand is changing its visual identity—for the period of the campaign, which is running from November 2011 till March 2012, the iconic red cans will become white with the red ‘Coca-Cola’ inscription and polar bears (a mother bear and her two cubs), and other drinks from the company’s portfolio will get white caps.

Genuine green advertising is not commercials promoting eco-friendly goods—to have a legitimate right to be called ‘green,’ the message should be placed in the medium made of natural elements, literally. This notion underlies Coca-Cola’s idea to construct a plant billboard in Philippines—the project was developed in collaboration with WWF, which have partnered with the soft drink giant on climate protection and water conservation in the country. Earlier this year, Coca-Cola unveiled an orange-powered Energie Naturelle advertising stand for its Tropicana brand in France, and now it has created a billboard using CO2 absorbing plants.