A T-shirt with a tonne of carbon locked up in it? That must be a pretty big T-shirt right? Not exactly. This new range of T-shirts has been created by Treecreds. Their objective is to save forests from being logged and encourages investment in avoided deforestation offset projects. The T-shirts each contain one tonne of carbon-dioxide equivalent emissions. That is, for every T-shirt purchased, Treecreds retires one carbon credit.