A consortium of 12 partners led by Wageningen Environmental Research (Alterra) including Nature For Health investigates the effects of a high-quality green environment on vulnerable elderly people, their informal carers, and the savings that green can deliver to health care costs. Previous research has already shown that green has a positive effect on people’s health. The “Green for Grey” project, which started on 1 September 2015 and ends on 1 September 2019, provides new insights that will be shared on Pifworld and on the Nature For Health website.