sentences:  In 2019, it was reported that the group's total environmental protection expenditure rocketed by 117.9%.The cornerstone of Nornickel's £20 billion environmental programme is the $2.5bn 'Sulphur Project' aimed at recycling toxic SO2 emissions, cutting those emissions by 75% by 2023 in its hometown of Nickel.The project will help capture 1.5 to 1.7 million tonnes of sulphur dioxide per year and recycle those emissions into marketable products.