In January and February this year, UNEP and TreeHugger invited green bloggers across the world to write an article for the World Environment Day competition. About 150 successful entries were received and each stood a chance to win a fully paid round trip to Rio de Janeiro, Brazil, to blog for World Environment Day on 5 June 2012.

A UNEP-TreeHugger jury has now selected the top 10 bloggers who are Andrea Newell, an editor at TriplePundit/Sustainable Industries; Carissa Welton, founder of Greening the Beige; Jessi Stafford, a social media strategist and writer; Jonathan Mariano, who has interests in free-market based sustainable solutions; Karin Rives, an online writer and editor; Kendra Pierre-Louis, an environmentalist; Kyle Empringham, a budding ecologist; Leon Kaye,  editor of GreenGoPost.com; Maggie Comstock, a policy analyst; and Scott Bartlett, an aspiring fiction writer and environmental activist.

Beginning 2nd April on the World Environment Day website, the top 10 will battle it out online in The Rio+20 Big Blog Off! This will be a showdown where they prove why each deserves to be the one to be crowned the WED 2012 Green Blogger.

But this year the ultimate decision is yours. You get to choose your favourite blogger by voting for them online, starting 2nd April 2012. Throughout April, they will each publish two new articles and the online community will decide which posts they like best by voting on the page. Whichever blogger accumulates the most votes by April 30th (23:59 GMT) wins the competition.

The Rio+20 Big Blog Off! promises to be an exciting event with a  surprise expert panel of climate heroes and other leading bloggers, to be revealed at launch. The experts will comment on each of the new blogs articles posted for this online showdown to help you make the right choice.

Follow us on Twitter or like our Facebook page to stay up to date with news for The Rio+20 Big Blog Off!