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Arrival Cities
being an immigrant or living in a "slum" is a feature not a bug
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The science of cities: Life in the concrete jungle

The science of cities: Life in the concrete jungle | Arrival Cities | Scoop.it
Nathan Phillips, an ecologist at Boston University in Massachusetts, and his colleagues are using roof-top data obtained from skyscrapers to model how carbon dioxide and other gases move through the city, as compared to rural areas.

The work is part of an interdisciplinary project to study Boston's 'metabolism' — how elements are exchanged between natural and human systems. Phillips and his team are now focusing on atmospheric carbon — particularly carbon dioxide and methane. Next, they plan to look at carbon in the city's soils and water, and to track the flow of water, nitrogen and pollutants. “The goal is to understand the function of a major city,” Phillips says. (...)

Using ecological methods to tease apart those relationships can improve urban areas for people as well as natural systems, says Phillips. “The scientific study of cities should yield practical benefits in terms of making our cities more sustainable,” he says.
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Healthy Interactions: Also see Pollution and Sustainability

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Urban forestry for green city

Urban forestry for green city | Arrival Cities | Scoop.it

According to World Health Organization (WHO) there should be 9 sq. meter green space per city dweller for ensuring better life. In developed countries, normally, they have more trees (more than 20 sq. meter green spaces per city dweller) to meet the ecological balance for human well-being compared to cities in developing countries, which often fall below the minimum standard of open green spaces set by WHO. For example, most of the cities of China have 6.52 sq. meter green coverage per head.


Department of Environment (DoE) pointed out that air pollutant (SOx, NOx and CO2) levels in Dhaka city are about 4 to 5 times higher than the prescribed levels of Air Quality Standard (AQS) in Bangladesh. Such pollutants remain and persist with air due to lack of tree coverage. Several research in US shows that trees can remove pollution by intercepting airborne particles. Another study of BAPA (2002) pointed out that air pollution causes headache, burning of eyes, pain in throat, bronchitis, breathing problems, heart disease, anemia, mental problems, kidney disease and even cancer. According to experts, about 33% of Dhaka dwellers suffer from hearing problems due to noise pollution. In US one research estimate suggests that 7db noise reduction is achieved for every 33 meter of forest. Therefore, vegetation can play an important role in attenuating noise and absorbing sound energy.

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Smart Growth: Fighting sprawl with walkable communities

Smart Growth: Fighting sprawl with walkable communities | Arrival Cities | Scoop.it

Governments are embracing "smart growth" planning principles to create jobs and more environmentally sustainable communities.


The Atlantic shares how walkable neighborhoods with easy access to local shops and mass transit can reduce the transportation and housing costs of the average household budget, as well as reduce the effects of pollution. Smart growth also has the potential to boost an area's economy by increasing foot traffic at local shops.


"The Environmental Protection Agency predicts that smart growth developments will likely increase over the next 30 years as household demographics and housing preferences change and the U.S. population grows."

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America and the West’s dirty little secret

America and the West’s dirty little secret | Arrival Cities | Scoop.it
By importing goods from polluting factories in Asia, Americans and others in developed countries underwrite carbon emissions...

 

This is a compelling question: are reductions in greenhouse gases best measured by production or consumption?  The question that this article is posing is essentially trying to find blame for greenhouse gas emmision, but thinking geographically, ponders where along the commodity chain should the bulk of the blame be placed.  What do you think?  


Via Seth Dixon, Lauren Moss
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For a truly sustainable world, we need zero waste cities

For a truly sustainable world, we need zero waste cities | Arrival Cities | Scoop.it

Choosing sustainable building materials and systems goes beyond considering durability. We need to take life cycle analysis and supply chain into account, and specify the most appropriate materials for a project – the least polluting, most easily recyclable, most energy efficient (least embodied energy) – and from sustainable sources. (...)


The zero waste ethos is a big call, radical in its ramifications, and it requires more than a top-down, government-imposed approach. To be successful, zero waste needs to be embraced and implemented by citizens and community groups, business and industry.

It is already technologically possible to build a zero-waste and zero-carbon-emission city.


The question is – are we willing to do so and transform from consumers to citizens?

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Global Warming: a new report on loss of life and global economic damage

Global Warming: a new report on loss of life and global economic damage | Arrival Cities | Scoop.it

From devastating floods in China and the Philippines to droughts in Africa, the extreme weather patterns that hit the United States have impacted sites around the world as the face of global warming.

According to a new report, climate change has already contributed to 400,000 deaths per year and over $699 billion, 0.9 percent annually, in loss to gross domestic product (GDP). The report estimates even greater damage from air pollution caused by the burning of fossil fuels. also driving global warming.

'Climate Vulnerability Monitor: A Guide to the Cold Calculus of a Hot Planet (2nd Edition)' was written by over 50 scientists, economists and policy experts, and commissioned by 20 governments. The study calculates and compares the vulnerability of 184 countries in terms of environmental disasters, habitat change, health impact and industry stress.

Read on for statistics, implications and global health issues related to these new findings, proving that 'failing to deal with global warming will have real and lasting impacts on local communities, economies, health and safety, and people around the world.'


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Why Cities? Ending Climate Change Begins in the City

Why Cities? Ending Climate Change Begins in the City | Arrival Cities | Scoop.it
The climate change debate has been going on for years, with people on both sides of the fence arguing for its existence — and against it.

 

It’s hard to argue or turn a blind eye to the fact that, as the world’s population continues to grow, cities are becoming more and more crowded and the day-to-day pollution put into the environment by humans is starting to have an effect on our world. The C40 Cities Climate Leadership Group (C40) is a network of the world’s mega cities committed to addressing climate change, and have a meaningful global impact. They have created this stellar interactive graphic to help spread the news...


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How Can We Create 1.5 Million Jobs And Reduce Pollution? Recycling. — Green For All

How Can We Create 1.5 Million Jobs And Reduce Pollution? Recycling. — Green For All | Arrival Cities | Scoop.it

"A new report called More Jobs, Less Pollution was released this week, showing that a national 75% recycling rate would create nearly 1.5 million new jobs while reducing an amount of climate pollution equal to shutting down 72 coal-fired power plants, or taking 50 million cars off the road. This report describes the benefits of building a resource recovery economy that creates community jobs with family-supporting wages."


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