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"This 18th edition of Greenpeace's Guide to Greener Electronics evaluates leading consumer electronics companies based on their commitment and progress in three environmental criteria: Energy and Climate, Greener Products, and Sustainable Operations. The Guide scores companies on overall policies and practices - not on specific products - to provide consumers with a snapshot of the sustainability of the biggest names in the industry. This Guide is not an endorsement for buying products from one company or another. Read"

"Gadgets get discarded at ever faster rates and account for millions of tons of consumer electronic waste every year. To feed production, more and more resources are claimed and we are beginning to suffer from the immense burden on the natural and social environment. What is the purpose of driving the technological advancement? Does it help us create something that will last? Where are we going so fast? We don't know. Or do we?"

"As I write these words, 7.4 per cent of the electrons powering my laptop come from wind farms - travelling at the speed of light between hundreds of silently whirring generators and the complex electronics in my computer. The output of wind farms over the past nine days - the span of National Science Week - has been particularly excellent, and it's worth diving into some data to have a closer look."

"Along with being a fun holiday for tricks and treats, Halloween is an opportune time to shine a ghostly light on the evil energy vampires lurking in homes. Those ghoulish fangs - also known as plugs in the wall - suck frightening amounts of electricity all night (and day) long, even when bloodthirsty electronics and appliances are turned off or doing nothing useful. The chilling truth is that as much as one-tenth of the electricity devoured in our homes vanishes as "standby power" - electricity feeding perpetually plugged-in electronics and appliances even when they're idle for long periods of time, like in the dead of night."

"The highly anticipated iPhone 5 is finally in millions of people's hands.  Within three days of its September 21st launch, Apple had sold a record-breaking five million units. And within a year, analysts project that sales of the iPhone 5 will reach 170 million. The popularity of the new device got us thinking: how much juice does it take each year to charge a next-generation smartphone? And how does the energy consumption of smartphones compare to that of other consumer electronics? To find out, we got our hands on a new iPhone 5 and also a Samsung Galaxy S III - currently the hottest Android handset - then headed into the Opower Lab for some testing. Here's what we found, and our assessment of what it suggests about the energy impact of our increasingly on-the-go digital lifestyles…"

"What happens to electronic waste (e-waste)? Watch this clip about the physics of recycling to find out the way that useful materials are captured from waste at a local materials recovery facility. Presenter Tanya Ha investigates e-waste, the products it comes from, and the sustainability challenges it poses."

"Batteries are so ubiquitous today that they're almost invisible to us. Yet they are a remarkable invention with a long and storied history, and an equally exciting future. A battery is essentially a device that stores chemical energy that is converted into electricity. Basically, batteries are small chemical reactors, with the reaction producing energetic electrons, ready to flow through the external device. Batteries have been with us for a long time. In 1938 the Director of the Baghdad Museum found what is now referred to as the "Baghdad Battery" in the basement of the museum. Analysis dated it at around 250BC and of Mesopotamian origin."

"This smart garden uses cutting-edge research in plant biology for higher yields, faster growth and more nutritious produce. It provides plants with the perfect amount of water, light and nutrients at up to 80 percent less than the cost to set up a comparable hydroponic or aeroponic system. It features professionally selected seeds that grow in the nanotech Smart Soil growth medium, ultra-efficient grow lights and electronic precision irrigation (EPI) that makes it possible to use up to 95% less water than traditional farming methods."

"Eco Electronic Brands" Green Gadgets, Flexible Solar Panels, Solar Chargers

"Imagine having a wafer-thin touchscreen on your sleeve that, like a scene out of a Philip K. Dick novel, gives you all the functionality of a smartphone without the awkwardness of a cumbersome battery. The best part about this scenario is it may not be as far from reality as you think."

"Turn your old mobile phones and gadgets into cash."