A jumble of steel scrap.
If the US were to stop dumping these valuable metals in landfills and to cease exporting them as cheap scrap, its imports could fall, and there would be less of these metals being made from scratch.
The study showed that boosting the office temperature a little can save energy and keep office workers comfortable without sacrificing their cognitive performance.
Mami Kempe / The Conversation
Our study found that office workers performed just the same, whether the air conditioning was set at 22°C or 25°C. But making that tweak can cut energy use by 18%.
This episode is all about bitcoin. Will it be the currency of the future? Who’s trying to capitalise on the legal loopholes of cryptocurrencies? And is it possible to make mining them more green.
Falling back or staying put?
Advocates say daylight saving time saves energy and wins wars. But studies show that injuries and illnesses rise when the clocks change. Some states may end the practice; others could make it permanent.
Solar panels are integrated into a block of flats in the Viikki area of Helsinki, Finland.
Not everyone can afford to pay for solar panels up front, but local planners can help disadvantaged households overcome energy poverty in several ways.
Soaring heating costs mean many vulnerable Australians endure cold houses and the associated risks to their health.
Paul Vasarhelyi from www.shutterstock.com
The idea of a hot and sunny land is so baked into our thinking about Australia that we've failed to design and build houses that protect us from the cold.
Solar panels are still a rarity in WA’s lower-income areas.
Western Australia has huge amounts of sunshine and wind, yet only 7% of its energy comes from renewables. What's more, most households in the poorest suburbs are still locked out of the solar panel boom.
Cutting energy use takes more than just the flick of a smartphone.
Smart appliances, which let you control lights and power outlets via your phone, promise to cut energy bills. But research suggests these gadgets are confusing, and can just as easily raise power use.
If you’re feeling hot this summer, consider a retrofit.
Fan image from www.shutterstock.com
Before you spend up on heating and cooling, here are a few simple retrofits to try first.
Pets suffer just as badly as their humans in the heat.
As the weather heats up, Australian households won’t just be cranking up the air conditioning for themselves. Some households will also be turning it on for their dogs or cats.
Cities today are flooded with light and we seldom think of its harmful impacts on the natural world.
Urban greening programs need to consider the harmful impacts of artificial lighting on ecosystems. Fortunately, we can do a lot to create more biosensitive lighting.
Spring forward, fall back … why?
Daylight saving time advocates say it conserves energy and wins wars. But studies show that injuries and illnesses rise when we switch the clocks. One solution: staying on DST year-round.
Calek / shutterstock
Most people say they want to save money and the environment, but their actions suggest otherwise.
Airlines have saved energy by changing flight routes and modifying wings for better fuel use.
Plane image from www.shutterstock.com
Companies could improve their profits 2-10% each year by saving energy, according to a world-first attempt to assess energy performance.
Hepburn Wind in Victoria is Australia’s largest community renewable energy project.
Australia, like much of the rest of the world, is in the midst of an energy transition, driven by falling demand and uptake of renewables. Community energy is one way we can mange this transition to the benefit of all Australians.
Conventional forecasts have consistently overestimated energy use, leading to increased investment in energy infrastructure.
Indigo Skies Photography /Flickr
Electricity forecasts just 4 years ago predicted strong, uninterrupted growth in electricity demand. In reality, demand has fallen for the past four years. Why?
Batteries to store excess solar power will be a game-changer. But energy-efficient appliances will mean you can use a smaller battery.
AAP Image/Raoul Wegat,file
The unveiling of Tesla's Powerwall home battery has been hailed as a huge moment in renewable energy. But don't forget the other innovations that can help you use that stored power more efficiently.
A Facebook server farm in Sweden: the energy you don’t see.
Smartphones may have been around for a while but demand for digital traffic is still growing fast. During the new year celebrations, mobile providers in the UK and Australia reported a 50% increase in…
Can your oven handle the pressure?
At Christmas, size is everything: so says an online “oven selector guide”. And it is true, ovens are designed and optimised for roasting large birds. As a result, they are typically oversized for regular…
Roof-top solar panels are just one part of the micropower revolution.
There is no shortage of shouting and dire warnings about the state of the climate and our need to phase out fossil fuels. But there is a more silent revolution happening too — in micropower. Small-scale…