Students taking Lyft and Uber to class are taking LA’s smog problem from bad to worse

February 7, 2019 by  
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Environmentalists are concerned by the number of students using transportation services like Lyft and Uber to get to classes. Students at UCLA specifically use these alternative means of transportation around 11,000 times per week, and that is troublesome for a city that is already dealing with significant smog issues. “The  pollutants  coming out of the tailpipe heavily contribute to Los Angeles’ smog problem,” Yifang Zhu, a professor at UCLA, explained. Transportation staff at the university said that the majority of these trips are short in duration. Students who oversleep are also more likely to use Lyft or Uber, because they need to get to class in a hurry without being tardy. School officials believe this increase in traffic plays a part in the growing smog problem in Los Angeles. Related: Toxic smog causes school closures in Bangkok Part of the issue with these services is that the vehicles are idling for a significant portion of time before picking up passengers. In fact, the idling can sometimes contribute more smog that actually driving to the destination, which is troublesome for a densely populated city like  Los Angeles . According to The Washington Post , younger generations are more apt to use services like Lyft or Uber , because they have an aversion to owning their own vehicles. These services can be more affordable than purchasing a car, especially on a student’s budget. While economics is clearly a factor to consider, previous research shows that millennials are the driving force behind these ride-hailing apps. For example, a 2016 study conducted by the Pew Research Center discovered that around 25 percent of young adults between 18 and 29 years old had used services like Lyft or Uber. Adults over the age of 65, meanwhile, barely register at only 4 percent. Although it may be more environmentally friendly to not own a car or truck, using alternative transportation services can be just as damaging. The transportation staff at UCLA gathered the information by combing through data from Uber and Lyft, two of the most widely used services on campus. Via The Washington Post Image via Josh Saldana

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Students taking Lyft and Uber to class are taking LA’s smog problem from bad to worse

Sydneys vibrant Green Square Library and Plaza collects and reuses rainwater

February 7, 2019 by  
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Former marshland in Sydney has been transformed into the new Green Square Library and Plaza, a striking project that’s not only revitalizing one of the city’s oldest industrial areas but is also a shining beacon for sustainability. Designed by Sydney-based architecture and urban design practice Stewart Hollenstein in association with Stewart Architecture , the Green Square project features a semi-submerged underground library with a plaza on top. Energy efficiency drove the design as well, from the numerous skylights that let in natural light to the library’s low-energy displacement ventilation system engineered by Arup. Created as a central gathering space for the growing Green Square neighborhood, the Green Square Library and Plaza draws the eye with its playful geometric cutouts and pavilions that punctuate the 8,000-square-meter plaza. The triangular-shaped glass pavilion on one end marks the entrance to the 3,000-square-meter underground library , while the large circular opening next to it brings light into the circular sunken garden at the heart of the library. Also on the plaza is a six-story glazed rectangular volume that includes a double-height reading room, computer lab, black-box theater, music room and community space. An outdoor amphitheater is found on the other end of the plaza. The four areas are visually connected with a series of 49 circular skylights that funnel light into the library, while the rest of the plaza is left open for other activities, from pop-up events on the lawn to a water play zone. Underground, the open-plan library is centered on a sunken garden with a children’s circle and “story tree.” Placing the library underground was no easy feat; because the project sits on former marshland, the area came with a permanent water table above excavation level. Waterproofing with four layers of defense was crucial to protecting the library from damage. The feat of engineering allowed for ample green space above — a key detail that earned the design first place in the global design competition for the public library. Related: This canopy walkway elevates Shenzhen library-goers into the treetops Daylight floods the library thanks to the weatherproof skylights that have been engineered to be walked on and to limit external heat gain. At night, the skylights are illuminated to bring visual interest and safety to the plaza. Reduced energy usage is also achieved with Arup’s bookshelf-integrated displacement ventilation system that brings improved indoor air quality and greater cooling efficiency. The landscaping on the plaza was designed to manage stormwater runoff and capture rainwater for reuse in the library. + Stewart Hollenstein Images by Tom Roe and Julien Lanoo via Stewart Hollenstein

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Sydneys vibrant Green Square Library and Plaza collects and reuses rainwater

NASA finds cavity the size of Manhattan underneath Antarctic glacier

February 7, 2019 by  
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NASA just made a disturbing discovering underneath the Antarctic ice. A team led by the space agency found a huge cavity — around 1,000 feet high — under a glacier in Antarctica, and it is steadily expanding in size. Experts have predicted they would a large cavity somewhere underneath the Thwaites Glacier, which is located in West Antarctica, but they did not expect such a large one between the ice sheet and bedrock. NASA scientists discovered the expansive chamber using a mix of radar and satellite imagery techniques. The cavity has been forming over the past three years as higher global temperatures have steadily melted the ice. The cavity, which is close to the size of Manhattan, is large enough to have housed around 14 billion tons of ice at one time. “[The size of] a cavity under a glacier plays an important role in melting,” Pietro Milillo, who works for the Jet Propulsion Laboratory (JPL), explained. “As more heat and water get under the glacier, it melts faster.” Related: Oceans warming 40 percent faster than previously thought NASA believes the cavity illustrates a need for more Antarctic studies in the near future, especially as global temperatures continue to rise. Keeping tabs on how fast these glacier’s are melting will also give us better insight on rising sea levels and climate change around the world. The space agency hopes that additional studies will help better predict how much oceans will rise — which has a direct impact on coastal populations. Being similar in size to Florida, the Thwaites Glacier has contributed to a four percent increase in sea level over the past few years. NASA discovered the Antarctic glacier has enough mass to raise sea levels around the world by around two feet. Even more concerning, melting glaciers affect nearby bodies of ice, which leads to additional runoff. Scientists previously found that sea levels are rising faster than they have over the past 2,800 years. Experts also anticipate that oceans might double their current pace over the next 100 years. The vast majority of the rise in sea levels is due to melting Antarctic glaciers. These massive chunks of ice contribute an astounding 14,000 tons of water per second into surrounding oceans . Via Fortune Image via NASA

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NASA finds cavity the size of Manhattan underneath Antarctic glacier

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