Local sustainability initiatives
Please see our local or city pages via the Australia category, where of course you can share any more information you may have about local sustainability initiatives.
Initiatives by topic
The per-capita carbon footprint in Australia was rated 12th in the world by PNAS in 2011.
In 2013, the CSIRO released a report stating Australia is getting hotter. In 2014, the Bureau of Meteorology released a report on the state of Australia's climate, which highlighted several key points, including the dramatic increase in Australia's temperatures (particularly nighttime temperatures) and the increasing frequency of bush fires, droughts and floods which have all been linked to climate change. 
Australian climate action groups on greenlivingpedia (category)
Wikipedia: Climate change organisations based in Australia (category)
Campaigns: The Transition Decade (Wikipedia): non-partisan shared campaign which is coordinated by an alliance of Australian community, social, and environmental groups, non-profits and NGO's. The initiative forms a unified plan to campaign, lobby and work to restore safe climate conditions and a sustainable future.
One of the notable issues with marine conservation in Australia is the protection of the Great Barrier Reef. The Great Barrier Reef's environmental pressures include water quality from runoff, climate change and mass coral bleaching, cyclic outbreaks of the crown-of-thorns starfish, overfishing, and shipping accidents. 
Community Power Agency, social enterprise setup to support the development of a vibrant community energy sector in Australia
YourEnergySavings.gov.au, information from the Australian Government as well as state and territory governments.
Solar PV Maps and Tools, Australian Photovoltaic Institute
See also: Energy transition in Australia
Wikipedia: Cycling organisations in Australia (category)
Education for sustainability
Cool Australia, educating for a sustainable future
Clean Up Australia, (Wikipedia): Clean Up Australia Limited is a not-for-profit Australian environmental conservation organisation founded by Australian Ian Kiernan, and co-founder Kim McKay, in 1989. It works to foster relationships between the community, business and government to address the environmental issues of waste, water and climate change. Since its inception, Clean Up Australia has grown to include other projects and campaigns including Business Clean Up Day, Schools Clean Up Day, Clean Up the Alps, Clean Up the Kimberley and Clean Up the World. The organisation is behind Clean Up Australia Day, as well as other environmental projects and campaigns.
Ethical consumer guide, The Ethical Consumer Group is a community based, not-for-profit network set up to help facilitate more sustainable purchasing practices for the everyday consumer.
Australian City Farms and Community Gardens Network - Grow Free, "dedicated to making our food locally grown, organic and free" - Local Harvest, national initiative aiming to help people find local sources of food and grow their own - My Home Harvest - Open Food Network, openfoodnetwork.org.au - Solar cooking resources in Australia
Farmers' markets: Australian Farmers' Markets Association
Resources: Planning and running open farm days, openfoodnetwork.org
Reduce, reuse, repair and recycle
Sustainable transport activism
Trees, woodland and forest
Wikipedia: Forests of Australia: Australia has many forests of importance due to significant features, despite being one of the driest continents. Australia has approximately 147 million hectares of native forest, which represents some 19% of land use. The majority of Australia's trees are hardwoods, typically eucalypts, rather than softwoods like pine.
Australia is one of the most urbanized countries in the world. Many Australian cities have large urban footprints and are characterised by an unsustainable low density urban sprawl. This places demand on infrastructure and services which contributes to the problems of land clearing, pollution, transport related emissions, energy consumption, invasive species, automobile dependency and urban heat islands.
The urban sprawl continues to increase at a rapid rate in most Australian cities, particularly the state capital cities, all of which (with the exception of Hobart) are metropoleis. In some centres, such as Sydney and Greater Western Sydney, Greater Melbourne and South East Queensland large metropolitan conurbations threaten to extend for hundreds of kilometres and based on current population growth rates are expected to become megacities in the 21st century.
In recent years, some cities have implemented transit-oriented development strategies to curb the urban sprawl. Notable examples include Melbourne 2030, South East Queensland Regional Plan and the Sydney Metropolitan Strategy. 
News and comment
See separate article: Australia news
Nov 13 - 19 National Recycling Week
Nov 7 - 13 National Recycling Week
November 9 - 15 National Recycling Week
March 23 -29 Meat Free Week Australia
March 2 Clean Up Australia Day
October 3 - 12 National Organic Week
Ocotber 15 Ride2Work Day
October 18 National Divestment Day
Apps for sustainability
Citizens data initiative
Wikipedia: Australia, State of the Environment reports
Local communities in Australia