Pollution

Why a Southern California Refinery Explosion Could Kill Thousands
February 17, 2017 02:58 PM - Laura Goldman, Care2

One morning in February 2015, I felt a rumble. Was it an earthquake? No. It was an explosion at the ExxonMobil oil refinery a few miles away. The refinery is located in the middle of a residential area of Torrance, Calif.

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Four-Stroke Engine Cycle Produces Hydrogen from Methane and Captures CO2
February 17, 2017 10:46 AM - Georgia Institute of Technology

When is an internal combustion engine not an internal combustion engine? When it’s been transformed into a modular reforming reactor that could make hydrogen available to power fuel cells wherever there’s a natural gas supply available.

By adding a catalyst, a hydrogen separating membrane and carbon dioxide sorbent to the century-old four-stroke engine cycle, researchers have demonstrated a laboratory-scale hydrogen reforming system that produces the green fuel at relatively low temperature in a process that can be scaled up or down to meet specific needs. The process could provide hydrogen at the point of use for residential fuel cells or neighborhood power plants, electricity and power production in natural-gas powered vehicles, fueling of municipal buses or other hydrogen-based vehicles, and supplementing intermittent renewable energy sources such as photovoltaics.

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SPOTLIGHT

The Dangers Behind Fast Food Packaging

Susan Bird, Care2

We’ve all known for a long time that eating fast food is bad for you. It’s greasy, fatty, high in sodium and the calorie count is obscene. Now comes news that even the packaging that food comes in might be dangerous to your health.

A new study found dangerous chemical compounds in almost half of the 400 fast food containers it tested from 27 fast food franchises. Packaging tested in this study came from the Big Four: McDonald’s, Chipotle Mexican Grill, Starbucks and Yum! Brands, Inc., which operates Taco Bell, KFC, Pizza Hut and WingStreet.

The substances in question are perfluorinated chemicals (PFCs). That’s the same stuff that once was used to make Dupont’s Teflon before it had to be removed from the market. It’s also used in carpeting, furniture, clothing and cosmetics because of its water-repellant and stain-resistant qualities. We’re exposed to it every day.

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