"- What does sustainability mean? - Why are we currently unsustainable? - What is an ecological footprint? - What's the problem with plastic? - What about water? - And biodiversity? - How are people faring? - How can we find a sustainable path? - What are some great sustainability initiatives? This video introduces the concept of sustainability and explains our current situation on this planet, even before any potential challenges from climate change are involved. From the Australian Research Institute for Environment and Sustainability (ARIES) at Macquarie University, Sydney. "

This Blogspace is a collective of writers and is devoted to conversation about cities as ecological spaces…about the nature of cities.

"Fast, efficient and individualistic, the bicycle is no ordinary mode of transport. It's a church, a gym, a community creator, a cash printer, a protest placard, a dopamine generator, a mechanical expression of self-determination, an icon of hope. It is touchable, attainable freedom. It is also a tool for nature conservation and one that the City of Cape Town-indeed, any city-stands to benefit from."

"When people think about green buildings, what generally comes to mind is solar panels, geothermal energy, improved insulation, green roofs, high-performance windows, rain-water recuperation, and so forth. However, the milieu in which the building is rooted also ought to be considered. Although we often forget it, being green also includes what lies beyond the walls! Landscaping, for instance, plays a major role in energy consumption. Trees, plants and the way you take care of them can have a significant impact on GHG emissions, and consequently, on your energy bills."

This report describes the outcomes from a CSIRO global foresight project. It presents six megatrends that will redefine how the world's people live.

"THE Customer DATA centers run by Apple are now entirely fueled by renewable energy, as are 75% of all its corporate facilities, according to the company's recently released 'Apple and the Environment` report. But despite the commitment demonstrated by building one of the world's largest solar arrays, as well as a biogas plant, beside its new iCloud facility in Maiden, North Carolina, the annual review of environmental impact also acknowledges that the total greenhouse gas emissions attributable to Apple's products and operations rose by 34% in 2012."

"Ocean warming has already affected global fisheries in the past four decades, a new international study has found, driving up the proportion of warm-water fish being caught and posing a threat to food security worldwide."

"Today, the most comprehensive analysis of peer-reviewed climate research to date was published in the journal Environmental Research Letters. Our analysis found that among papers expressing a position on human-caused global warming, over 97% endorsed the consensus position that humans are causing global warming. Overwhelming agreement among scientists had already formed in the early 1990s. And the consensus is getting stronger."

Australia has one of the highest incidences of pet ownership in the world with latest data showing that 63% of the 7.5 million households own a pet. As the dog population in Australia continues to grow, so will the issue of dog 'waste' disposal in a waste management system of increasing urbanisation, a limited amount of suitable park spaces and shrinking landfill sites. On average, a dog produces 0.34 kilograms (kg) of feces per day. Consequently, there is approximately 1,400 tonnes (t) of dog waste to be disposed of every day in Australia; 490,000 tonnes (t) per year. Therefore we want to build an anaerobic methane digester to process the dog waste (and other appropriate wastes) to create a biogas that can serve as renewable energy source to super-power your dog parks. 

It's a youth climate summit. This July, 2,000 young people will come together to shift Australia away from fossil fuels towards renewable energy. Together we can change the game on climate. WHEN, WHERE? Melbourne.  July 13-15th. 

"Unless urgent action is taken to reduce carbon emissions, more than half of common plants and a third of animal species around the world are likely to see their living space halved by 2080, predicts a new study."

"If you're thinking about building green, keep this infographic nearby, as it covers thirteen elements that you'll want to consider in the design and construction of your home. Also keep in mind that this list isn't definitive; it does, however, demonstrate well that building green involves big-picture thinking beyond "Hey, let's put solar panels up.""

"Another young creative mind working towards bettering our world. 19-year-old Boyan Slat has revealed his plans to the world regarding his Ocean Cleanup Array that could remove 7,250,000 tons of plastic waste from the world's oceans."

Solar Citizens is a new community project to bring together existing and future solar owners to ensure the rights of solar owners are protected and to help see Australia put a panel on every rooftop.

"In the US, utilities are now seeking to protect their business models by pushing hard against net metering and seeking to influence the pace and manner of deployment of other technologies and new energy market concept that don't fit the decades old model. In Australia, much the same has been happening. RenewEconomy reported on the concerns of utilities in this article last month. Feed-in-tariffs have been wound back, as they were supposed to have been as technology costs fell, but now the pendulum is swinging the other way, and utilities - with the apparent complicity of state-based pricing regulators - are now trying to extract as much revenue from solar customers as they can."

"Watch the world change over the course of nearly three decades of satellite photography. These Timelapse pictures tell the pretty and not-so-pretty story of a finite planet and how its residents are treating it - razing even as we build, destroying even as we preserve. It takes a certain amount of courage to look at the videos, but once you start, it's impossible to look away."

"A home energy audit will help you to understand where you use energy at home and where you may be able to make savings.  You can do your own home energy audit online using the links on this page.  Each section contains questions about how you use energy and should take less than 10 minutes to complete. By the end of the audit you'll know what you can do to reduce your energy use and minimise your bills. "

"Find out more about greenhouse gases and how they can influence our climate and weather."

"Food writer Hilary McNevin is half way through the Live Below The Line challenge, feeding herself and her two children for $30 over five days. It's been challenging and confronting, but most of all an eye-opening learning experience."

"Live Below the Line is a tough, but meaningful challenge. It means strictly planned meals, a few hunger pains and the odd caffeine withdrawal. But you won't be alone. You can pool money with housemates, colleagues and families to stretch out the $2 to go as far as possible."