Forced to diversify its economy after the closures of the steel plant and coal industries, Sydney has examined a variety of economic development possibilities including tourism and culture, light manufacturing and information technology. Cleaning up the former steel plant, and the toxic Sydney Tar Ponds it left behind in Muggah's Creek, were a source of controversy due to its health effects on residents, although it has provided some employment since SYSCO closed. The tar pond cleanup was completed in 2013 with the opening of Open Hearth Park, which sits on the direct site of the former steel plant and has hosted events such as an Aerosmith concert in September 2014.