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Posts Tagged "air quality"

Observations

Dimming city lights may help reduce smog

LA at night

SAN FRANCISCO—City lights may do more than hide a starry sky: they could indirectly worsen daytime smog. Measurements of light pollution over Los Angeles have revealed a brighter glow than chemists expected—bright enough to destroy chemicals that would otherwise help cleanse the air during a dark night. “Light pollution can slow down nighttime cleansing,” said [...]

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Did Congestion Charging Just Go Viral?

Congestion charging point in Stockholm. Image courtesy of Transport Styrelsen.

What is congestion charging? Congestion charging or pricing is the practice of setting up cordon tolls around the city on a large-scale to charge entrants for entering during peak hours. Ideally, this is done in an automatic fashion with cameras registering your license plate and directly billing you. This is different from low emissions zones, [...]

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The Cyclic Nature of “Crazy Bad” Air Pollution and Fuel Transitions

Photo of Beijing Skyline (2005) by Bobak

  China has become an icon for global air quality discussions – with its infamously horrible airpocolypses leading to widely publicized health impacts on the local population including widespread headaches, respiratory distress, and anxiety. On January 14, 2014 one such event led to air quality that was so “crazy bad,” measurement tools housed at the U.S. Embassy in Beijing [...]

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Top 10 (Transport) Sights in Paris

Image courtesy: Kathleen Sullivan

Few tourists travel explicitly to see a city’s or country’s mode of transportation, but I dare say that besides transport nerds such as myself, there are examples which qualify as must-see, including Japan’s Shinkansen high-speed train, Lisbon’s old tram system, and the streetcars of New Orleans, among others. While Paris is most recently known for [...]

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Battleship Barcelona: When Child-Like Simplicity Saves the Day

Barcelona's new bus system is based on its century-old grid pattern streets. Copyright: Tali Trigg.

I am one of those people who always thought Barcelona would be my favorite city in the world. I visited several times, and though the weather, design, and food leave you wanting little else, there was always something about the sheer number of tourists (besides myself) and traffic that put me off the whole experience. [...]

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Map Monday: 50+ Shades of Air Pollution

One-fourth of the world is breathing unsafe air. Courtesy of Hsu et al/The Atlantic

In today’s installment of Map Monday, I wanted to focus on air pollution as mapped by Hsu et al and The Atlantic. Go to this link to see the full interactive map, which details air pollution by country and city. Below, I have copied in a global snapshot with some perhaps unsurprising shades of pollution [...]

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Should public transportation be free in cities with bad air quality?

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This weekend, Parisians and those visiting the city will enjoy free public transportation as they move from Versailles to La Tour Eiffel. This initiative comes as much of Northern France experiences dangerously high levels of local air pollution, leaving local governments desperate to get cars off the road. According to air quality measurements across the [...]

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Understanding Eagle Ford shale’s impact on air quality

EmissionsGraphic

This morning, the Weather Channel, InsideClimate News, and the Center for Public Integrity released a documentary on the air quality impacts oil and gas development in Texas’s Eagle Ford shale. They also released a series of infographics on sources of air emissions during development, including the following:   According to a new documentary, the air quality impacts [...]

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China enveloped in smog, as seen from space. Again.

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Heavy smog that paralyzed eastern China is visible from space in this satellite image from NASA.

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Guest Post: Tighten up your house, but not too much…

energystar

The following is a guest post written by Joshua Rhodes and Brent Stephens, PhD students at The University of Texas at Austin. As a part of their research, they work on two different aspects of buildings, with Josh focusing on energy use and efficiency and Brent focusing on indoor air quality. Their post compliments David [...]

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