Boulogne-Billancourt, France, 2015-3-16 — /EPR Retail News/ —  For 2015 – a year all about climate – Carrefour is joining forces with the Nicolas Hulot Foundation as part of its "My Positive Impact" campaign, supporting innovative solutions developed by SMEs, local authorities and associations for tackling climate change. Carrefour is actively contributing to the fight against climate…