Dear IUFRO Colleagues, the deadline for submitting abstracts for the IUFRO RG 7.01.00 conference 'Vegetation Response to Climate Change and Air Pollution – Unifying Evidence and Research across Northern and Southern Hemisphere' to be held in Ilheus, Brazil, on 1-6 September 2013, has been postponed to May 20, 2013. Further details are available at the conference website http://www.iufro2013.ufop.br/ Best regards Elena Paoletti