1Greening the Government Through Waste Prevention, Recycling, and Federal Acquisition, Executive Order 13101of September 16,http://www.epa.gov/oppt/epp/pubs/13101.pdf
2Greening Government Through Leadership in Environmental Management, Executive Order 13148 of April 22, 2000http://www. ecs.noaa.gov/eo13148.html
3.Government of Canada''s Green Plan绿色政府纪事[EB/OL].http://www.greeninggovernment. gc. ca/default. asplang=Enn=737456BC-1,.
4Johanne Gelinas. Sustainable Development in Canada. Viewed in 2002,http://www. sdsymposium. org/txt_chs/f12. htm
5Greening Government policy, http://www. scotland.gov. uk/environment/greeninggovernment/env_policy. asp