Green Technologies

///Green Technologies

Energy-Efficient Light Bulbs Harder to Find, More Expensive in High-Poverty Neighborhoods

One of the easiest ways for a household to save energy and money is to install energy-efficient light bulbs in as many sockets as possible. But, according to a new University of Michigan study, the low-income households that benefit most from these savings have a harder time finding CFL and LED bulbs than do households

2018-06-12T12:57:45+00:00 Tags: |

In desert trials, next-generation water harvester delivers fresh water from air

Last October, a University of California, Berkeley, team headed down to the Arizona desert, plopped their newest prototype water harvester into the backyard of a tract home and started sucking water out of the air without any power other than sunlight. The successful field test of their larger, next-generation harvester proved what the team had

2018-06-11T07:15:23+00:00 Tags: |

Magic in metal could help put excess carbon dioxide to good use

The chunk of metal sitting on a table in Joel Rosenthal's office at the University of Delaware looks like it should belong in a wizard's pocket. Shiny silver with shocks of pink and splashes of gold, it's called bismuth, and it's currently used to make products ranging from shotgun pellets to cosmetics and antacids, including

2018-06-07T03:49:14+00:00 Tags: |

Atomically thin nanowires convert heat to electricity more efficiently

Waste heat can be converted to electricity more efficiently using one-dimensional nanoscale materials as thin as an atom -- ushering a new way of generating sustainable energy -- thanks to new research by the University of Warwick. Led by Drs Andrij Vasylenko, Samuel Marks, Jeremy Sloan and David Quigley from Warwick's Department of Physics, in

2018-06-02T07:32:53+00:00 Tags: |

What does the future of energy look like?

Fossil fuels like coal, oil and natural gas supply 80 percent of the world’s energy to warm homes, charge devices and power transportation. They are also the primary human source of greenhouse gas emissions. Stanford scientists broadly agree that curtailing our use of fossil fuels would have significant benefits – like improving health and reducing

2018-05-29T08:10:59+00:00 Tags: |

America Should Invest In Distributed Renewable Energy Instead Of Natural Gas Plants, Finds RMI Report

Half of all existing conventional electricity generating plants in the US will need to be replaced by 2030 as they reach the end of their useful life. The question is, what should they be replaced with? The Rocky Mountain Institute has studied this question and concluded that investing in distributed renewable energy makes the most

2018-05-24T04:44:42+00:00 Tags: |

U.S. Plastics Producers Aim to Recycle or Recover 100% of Plastic Packaging by 2040

Three new goals to enhance the circular economy for plastics and reduce packaging waste have been announced by leading U.S. plastic producers including BASF, Dow, DuPont and Braskem. Together as part of the American Chemistry Council (ACC)’s Plastics Division, 15 leading resin manufacturers and an affiliated trade association have strengthened their commitments to capturing, recycling and recovering plastics. The announcement follows recent news that 42 consumer packaged goods

New polymer manufacturing process saves 10 orders of magnitude of energy

Makers of cars, planes, buses – anything that needs strong, lightweight and heat resistant parts – are poised to benefit from a new manufacturing process that requires only a quick touch from a small heat source to send a cascading hardening wave through a polymer. Researchers at the University of Illinois have developed a new

2018-05-12T07:05:24+00:00 Tags: |

Engineers upgrade ancient, sun-powered tech to purify water with near-perfect efficiency

The idea of using energy from the sun to evaporate and purify water is ancient. The Greek philosopher Aristotle reportedly described such a process more than 2,000 years ago. Now, researchers are bringing this technology into the modern age, using it to sanitize water at what they report to be record-breaking rates. By draping black,

2018-05-11T03:59:14+00:00 Tags: |

This Incredible Skyscraper Is Also a Farm That Can Feed a Village

A skyscraper may not seem like the answer to an entire continent’s agricultural challenges, but the best inventions aren’t always what they seem.  In Africa, where 70% of the population lives in rural areas and mostly practices subsistence farming, scraping by on barely $2 USD/day, the scientific advancements of the “green revolution” could introduce modern

Can mini-grids solve sustainable energy access?

Providing sustainable energy access to the world’s population is at the forefront of the widely discussed energy trilemma — how to ensure energy security, equity and environmental sustainability for all. Despite dramatic improvements in electricity access since 2000, 1.1 billion people (PDF) remain without access to electricity. This problem is particularly acute in sub-Saharan Africa, where

2018-04-30T07:52:55+00:00 Tags: |

Pulling valuable metals from e-waste makes financial sense

Electronic waste — including discarded televisions, computers and mobile phones — is one of the fastest-growing waste categories worldwide. For years, recyclers have gleaned usable parts, including metals, from this waste stream. That makes sense from a sustainability perspective, but it’s been unclear whether it’s reasonable from an economic viewpoint. Now researchers report in ACS’

2018-04-09T07:25:38+00:00 Tags: |

Green technologies friendly to environment, profits

Companies looking to reduce their environmental impact without negatively affecting profits may want to consider increasing their investment in green technology and other sustainable IT solutions, according to a new study on information technology and sustainability published in Production and Operations Management. Terence Saldanha, assistant professor of information systems at Washington State University's Carson College

2018-04-07T09:29:35+00:00 Tags: |

Cheap tough E- paper

Optoelectronic engineers in China and Hong Kong have manufactured a special type of liquid crystal display (LCD) that is paper-thin, flexible, light and tough. With this, a daily newspaper could be uploaded onto a flexible paperlike display that could be updated as fast as the news cycles. It sounds like something from the future, but

2018-03-29T07:52:59+00:00 Tags: |

New 4-D printer could reshape the world we live in

NEW ORLEANS, March 21, 2018 — From moon landings to mobile phones, many of the farfetched visions of science fiction have transformed into reality. In the latest example of this trend, scientists report that they have developed a powerful printer that could streamline the creation of self-assembling structures that can change shape after being exposed

2018-03-29T07:45:11+00:00 Tags: |

Water from air

It seems like getting something for nothing, but you really can get drinkable water right out of the driest of desert air. Even in the most arid places on Earth, there is some moisture in the air, and a practical way to extract that moisture could be a key to survival in such bone-dry locations.

2018-03-24T14:48:04+00:00 Tags: |

Researchers figured out how to generate power from falling raindrops

One of the biggest problems plaguing the widespread adoption of solar power is, quite simply, rainy weather. Solar panels are designed to convert sunlight into electricity. But when it's cloudy or rainy, they're rendered useless. There are batteries, like the Tesla Powerwall, designed to store electricity for those cloudy days. But the technology isn't quite effective

The need to power datacentres sustainably

As megatrends go, surging demand for cloud-based services seems unstoppable, says Chris Wellise, chief sustainability officer at Hewlett Packard Enterprise (HPE). “By 2020, half the world’s population is expected to have internet access and machine-to-machine connections will reach 100 billion devices. With this global connectivity, however, come both opportunities and challenges,” he says. The social and

2018-02-20T12:15:06+00:00 Tags: |

Stanford researchers develop new method for waking up small electronic devices

As smartphone users know all too well, a sleeping device can still suck the life out of a battery. One solution for extending the battery life of wireless devices under development by researchers at Stanford University is to add a wake-up receiver that can turn on a shut-off device at a moment’s notice. Angad Rekhi,

2018-02-19T15:38:01+00:00 Tags: |