Huge "light cannons" funnel daylight deep within this ultra green eco city in China

April 20, 2017 by  
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Giant “light cannons” funnel natural light deep within this new high-tech “eco city” in China. NBBJ designed the Nanjing Eco-Tech Island Exhibition Center as an incubator for innovative technology and environmental companies. To strengthen the project’s sustainability, the design team included green roofs , water retention systems, natural ventilation , responsive facades and geothermal conditioning. The Nanjing Eco-Tech Park includes an exhibition hall, research offices and residential buildings. The Exhibition Center welcomes visitors a they approach the island from downtown Nanjing. The peaks on the building’s roof each have an oculus that funnels natural light inside the structure. The complex consists of eight, pentagon-shaped office buildings with large interior courtyards. Related: Amazon’s biosphere domes are slowly taking shape in Seattle The architects conducted light studies to come up with optimal daylighting and shading strategies for different times of the day and year. Light gets diffused by the cone geometry of the light cannons, while the overhangs function as passive solar shading devices. Related: Diébédo Francis Kéré unveils 2017 Serpentine Pavilion with rain-gathering roof The Exhibition Center is the first structure to be built on the island, and it has received the MIPIM Asia Best Chinese Futura Project Bronze Award. + NBBJ Via World Architecture News Lead photo by Paul Dingman

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Huge "light cannons" funnel daylight deep within this ultra green eco city in China

Conservation group names America’s most endangered river

April 20, 2017 by  
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The Lower Colorado River is one of the United States’ most vital waterways. Besides providing drinking water to 30 million Americans in cities such as San Diego, Las Vegas, and Tucson, the river also irrigates about 90 percent of the country’s winter-vegetable supply. But it’s in danger of being tapped out, according to American Rivers , an environmental group named it the most “most endangered” river in the nation. The reason is a simple case of demand outpacing supply. Coupled with the trend of intensifying droughts, the Lower Colorado is being depleted faster than it can replenish itself. “The Lower Colorado is the lifeblood of the region and grows food for Americans nationwide, but the river is at a breaking point,” said Matt Rice, Colorado Basin director for American Rivers. “It is critical that the Trump administration and Congress support and fund innovative water management solutions.” Related: The EPA just spilled 1 million gallons of mustard-colored mine waste into a Colorado river Proposed federal cuts , plus Trump’s determination to roll back environmental regulations set by his predecessor, offer no recourse. “Americans must speak up and let their elected officials know that healthy rivers are essential to our families, our communities and our future,” Bob Irvin, president of American Rivers, said. “We must take care of the rivers that take care of us” Other rivers under similar duress include California’s Bear River, Washington’s South Fork Skykomish River, and Alabama’s Mobile Bay Basin. Via U.S.A. Today Photos by Denny Armstrong and Sharon Mollerus

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Conservation group names America’s most endangered river

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