Golf courses are often located on or near waterways and can have a big impact on water quality because of the quantities of pesticides and fertilisers they use. American studies showed that golf course superintendents suffer higher rates of cancer because of exposure to pesticides. The second global anti-golf movement convention was held in 1994 and overseas, golf courses were becoming the target of environmental groups. Even the major chemical companies have put out brochures about turf stewardship. A golf course can use one million litres of water a day!