2005 in the environment

	… 1995; 1996; 1997; 1998; 1999; 2000; 2001; ; 2002; 2003; 2004; 2005; 2006; 2007; 2008; ; 2009; 2010; 2011; 2012; 2013; 2014; 2015 …;
	Art; Archaeology; Architecture; Literature; Music; Philosophy; Science; +...

This is a list of notable events relating to the

environmental issues

.

Events

The Millennium Ecosystem Assessment is released. It is an international synthesis by over 1000 of the world's leading biological scientists that analyses the state of the Earth’s ecosystems and provides summaries and guidelines for decision-makers. It concludes that human activity is having a significant and escalating impact on the biodiversity of world ecosystems, reducing both their resilience and biocapacity.
The
Singapore Green Plan 2012
was reviewed and was adopted the following year.

The Multi-effect Protocol, also known as the Gothenburg Protocol, comes into force. It is a multi-pollutant protocol designed to reduce acidification, eutrophication and ground-level ozone.

The Asia-Pacific Partnership on Clean Development and Climate, an international, voluntary, public-private partnership among Australia, Canada, India, Japan, the People's Republic of China, South Korea, and the United States, was announced at an Association of South East Asian Nations (ASEAN) Regional Forum meeting.
A writ was filed in Victoria, Australia by the forestry company Gunns against the "
Gunns 20
", a group of 20 individuals who were critical of their environmental practices.
Gaylord Nelson, an American politician and founder of Earth Day, dies at the age of 89.

The Malaysian haze was a week-long choking smog-like haze over Malaysia that almost brought the central part of Peninsular Malaysia to a standstill, prompted crisis talks with Indonesia and caused widespread inconvenience. The haze was at its worst on August 11, 2005 and was related to the haze crisis which last hit Malaysia in September 1997.
The Murphy Oil USA refinery spill occurred as a result of the failure of a storage tank at the Murphy Oil USA refinery and spoiled the flood-waters following the levee breaks of Hurricane Katrina in residential areas of Chalmette and Meraux, Louisiana.
US president
Clean Air Act, Clean Water Act and the Safe Drinking Water Act
.