In honor of Blog Action Day on the topic of water, here is a bit of good news about a new low-cost, energy efficient method for purifying drinking water without the use of chlorine. Scientists at Stanford University have developed a new kind of water filter that uses a combination of silver, cotton, and electricity to kill up to 98 percent of E. coli bacteria in contaminated water. The system was recently described in the American Chemical Society journal.

With rapid industrialization, the world has seen the development of a number of items or units, which generate heat. Until now this heat has often been treated as a waste, making people wonder if this enormous heat being generated can be transformed into a source of electric power. Now, with the physicists at the University of Arizona finding new ways to harvest energy through heat, this dream is actually going to become a reality.

Chiều 20/10, tại Thành phố Đà Nẵng, Đại điện Tổng Công ty điện lực Miền Trung và Tập đoàn Điện lực Dongfang Trung Quốc (DEC) đã ký Hợp đồng gói thầu “Cung cấp thiết bị thủy lực và điện nhà máy” thuộc Dự án mở rộng nhà máy Thủy điện Định Bình.

Great efforts have been made to improve public awareness about energy savings. Energy efficient appliances have replaced power consuming equipment. Millions of compact lamps and solar water heaters have been used, while many power saving models have been applied to factories and smart/green buildings.

Diamond Plaza, recognized as one of the most beautiful buildings in Vietnam, has twice been rewarded as "the ASEAN (the Association of South East Asian Nations) Energy Efficient Building". The building always obeys strictest regulations in design, construction and operation to guarantee aesthetic effects and energy efficiency to meet demands of a "Green Building".

Toyota Motor Corp officials have recently announced that the company plans to introduce two new versions of its Prius Hybrid into the auto market. The vehicles will be unveiled at the Detroit Auto Show, scheduled for Jan 2011. This way, Toyota hopes to bolster their dominance of the electric and hybrid vehicle market in the U.S.

After renewing the house, Mr Hieu and his wife decide to reuse the decorative since they thought it is still very new. However, being put into use, the chandelier has caused a complicated problem as it consumes a lot of electricity and is very hot. The chandelier has three tiers, with about 26 40W bulbs, so it consumes 1.040W per lighting hour. Then the chandelier has been“retired” once again after a month.

On October 9th 2010, in Japan, the energy efficiency training course for Vietnamese staff (ECVN7) ended successfully, after 12 days of hard work, studying the theory and practicing to operate machines at Japanese facilities which well implemented energy efficiency.

Chuột túi Kangaroo là biểu tượng của đất nước Australia, tuy nhiên Tổ chức Hòa bình Xanh đã kêu gọi mọi người ăn nhiều thịt chuột túi hơn để giảm lượng khí thải carbon dioxide.

A British business offering turnkey solutions for micro wind power is aiming to become one of the top five producers in the world by 2016. Its innovative new design will provide a fully installed wind turbine for as little as $7000, according to the company’s CEO.

United States’ Environment Protection Agency (EPA) has increased the percentage of ethanol blending optional for cars and light-weight trucks made in or after 2007 to 15 percent (E15). This is the first increment in the ethanol blending standard in more than 30 years. Since 1979, automobiles had an option to use only 10 percent blended ethanol (E10) in gasoline.

Nhật Bản vừa trình làng một sản phẩm công nghệ mới vô cùng thân thiện với môi trường, đó là chiếc tàu hỏa chạy bằng dầu điêden sinh học (BDF) đầu tiên tại thành phố Kasai, thuộc tỉnh Hyogo, miền Tây nước này.

More than 300 students in HCM City on Sunday took part in activities for the International 350 Day for Climate Change. Together with millions of people around the globe, they raised their voices about climate change and environment protection. The students made a painting of five-by-five metres, and 260 small paintings that were combined to depict the number 1,000 in celebration of Ha Noi’s millenium anniversary.

In devising the myriad events, "we just wanted to put it on people's radar to think about things" when it comes to conserving, said Stephanie Ciccarello, the town's energy conservation coordinator. "There's always more that people can do."

ENERGY STAR® qualified, biodegradable supply cores and recyclable packaging make the new Datacard® SD260 card printer the industry’s first desktop printer with environmentally focused features, according to Datacard Group, the world leader in secure ID and card personalization systems.

SunHydro, a hydrogen refueling company is launching their first hydrogen station that will be open to the public. The refueling point will be made available starting Friday in Connecticut, USA, in an attempt of the firm to create a chain of hydrogen refueling stations from Maine to Florida.

In the middle of November 2010, Vietnam Chamber of Commerce and Industry (VCCI), in collaboration with the Ministry of Planning and Investment and the Ministry of Industry and Trade, will host the Business forum for sustainable development with the theme: "Promoting and strengthening the participation of related parties in the process of implementing sustainable development. "

The management of the exploration and exploitation of natural resources should be strengthened to preserve valuable assets for younger generations, according to attendants of a conference in Ha Noi last week. This idea was put forth by experts from several sectors to discuss the draft of the amended law on mineral resources exploitation.

Solar panels are usually mounted in series, to sum up their voltages, and the resulting power is sent to a large inverter, which transforms the DC voltage into AC. One big issue with this scheme is that if shade falls on one panel, or it gets dirty, the inverter lowers the current of all the other panels, and causing power losses through inefficiency.

West Virginia has recently discovered, though a project funded by Google, that it is lying on top of a major resource: geothermal power. The finding is even more significant taking in consideration the state’s high dependence on fossil fuels.