The College's efforts to improve environmental sustainability began, like many things at King’s, as a spontaneous grassroots movement amongst students, staff, and Fellows alike. In 2009 this passion and commitment led to the College implementing an Environmental Policy, which asserted its commitment to acting sustainably at every level of its institutional operations. In recent years we have seen sustained reductions in our energy use, with insulation improved, inefficient boilers replaced, and new buildings constructed to efficient Passivhaus standards. In order to reduce our carbon emissions, we have adopted a decarbonisation strategy, based on an initial report, with the aim of becoming carbon net-zero by 2038. A second decarbonisation report has recently been commissioned to more accurately assess the carbon emissions across all the College's buildings and operations.