This week, we're excited to introduce some very special 10:10ers to you, look back to a very successful zero-carbon-festival in Buenos Aires and wish we were in Denmark for a very special get-together being run by the 10:10 team over there. 

• Here in the UK, we're super proud to introduce the 10:10 Pioneers. Get free one-on-one advice, insight and inspiration from some of the UK's most successful 10:10ers. Sounds good? Then check out their profiles and get in touch.

In 2012's first round up blog, we share a celebratory compilation of our 2011 10:10 highlights, an update on what might be the most exciting week in the life of the Lighter Later campaign to date, and an invitation to Argentina's very first zero carbon festival.