Often presented as one of the best ways to save energy, eco-efficiency often proves to be less effective than one might think.
Making better use of existing building space is a neglected but essential way to cut our carbon emissions. The key is human behaviour. Good low-carbon citizens will help create good low-carbon cities.
The United Nations is calling on world governments to step up action against climate change. Can China, the world's biggest carbon emitter, fulfill its pledges?
The research has been done. The evidence is in. We know how to create cities that are sustainable, liveable and affordable. But we have yet to apply that knowledge widely across Australian cities.
Australia requires a minimum six-star energy rating for new housing. New homes average just 6.2 stars, so builders are doing the bare minimum to comply, even as the costs of this approach are rising.
Fires and building failures highlighted serious gaps in Australian building regulations. But recent revisions and recommendations still fall short of preparing our buildings for climate change.
Rail advocates often make the case that trains are a cleaner mode of transportation, but why is that so? And what would it take to expand rail in the U.S.?
Unless it sparks joy, go ahead and scratch this task off your spring-cleaning checklist.
It's often more effective, cheaper and less controversial than other efforts to confront climate change.
People who use an appliance a lot save more from an energy efficient model. With the right app, they could easily get a sense of their own potential savings when they shop.
In the wake of the Paris Climate Agreement, France has committed to cutting achieving carbon neutrality for its building stock by 2050. While the goal is ambitious, the challenges are significant.
The Internet of Things is contributing to climate change. Innovation in computer design could help mitigate the problem.
Encouraging people to buy LED bulbs is not a long-term solution. We need lighting which is kind to the planet and our health.
The case for pragmatism, not dogma.
The University of Melbourne is the first institution in Australia to have its nitrogen footprint calculated – it's 139 tonnes per year, mainly because of food production, energy use and transport.
Since the federal government started setting fuel economy standards, US-built cars have doubled their fuel efficiency, saving money for consumers and reducing pollution.
We must develop the capability to meet our computing needs while using much less power and producing negligible heat waste.
Lowering your carbon footprint by living off-grid is a sustainability dream. But how possible is it using current technology?
Those on low incomes get less back from home improvement schemes than they pay in government charges.
Buildings are central to creating more sustainable cities, and green ratings are often used to assess how well a building measures up against this goal. But the current system has serious flaws.