Dalhousie University and McGill University are taking steps to lessen their environmental impact. Dal will be embarking on renovations to improve the energy efficiency of the Killam Memorial Library this month. The deep energy retrofit will reduce water and energy use and improve building performance. At McGill, some labs are turning up the temperature of their freezers to reduce the environmental impact and increase the lifespan of their equipment. McGill is encouraging lab users to participate in the International Freezer Challenge to save energy when storing research samples.