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Abrupt rise in greenhouse gases at end of last ice age may be because of permafrost
November 20, 2014 12:30 PM - Alfred Wegener Institute

One of the most abrupt rises in the carbon dioxide concentration in the atmosphere at the end of the last ice age took place about 14,600 years ago. Ice core data show that the CO2 concentration at that time increased by more than 10 ppm (parts per million, unit of measure for the composition of gases) within 200 years. This CO2 increase, i.e. approx. 0.05 ppm per year, was significantly less than the current rise in atmospheric CO2 of 2-3 ppm in the last decade caused by fossil fuels. 

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ENERGY STAR's first multifamily properties announced today
November 13, 2014 08:31 AM - ENERGY STAR

Roughly one-third of the U.S. population lives in the country’s 500,000 multifamily buildings, and they spend $22 billion on energy every year. Until this year, apartment and condo managers lacked the tools to measure how much energy they were wasting and compare their performance nationwide. Meanwhile, energy costs for renters have risen by 20 percent over the past decade.

 

Today, a new era of savings will be ushered in when the U.S EPA announces the first set of multifamily properties to earn the ENERGY STAR certification. The ENERGY STAR first became available to the sector this September, after a three-year partnership with Fannie Mae to develop the scoring system for multifamily properties.

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SPOTLIGHT

A 600,000 year long continental archive revealed in Near East study

The University of Bonn

If you want to see into the future, you have to understand the past. An international consortium of researchers under the auspices of the University of Bonn has drilled deposits on the bed of Lake Van (Eastern Turkey) which provide unique insights into the last 600,000 years. The samples reveal that the climate has done its fair share of mischief-making in the past. Furthermore, there have been numerous earthquakes and volcanic eruptions. The results of the drilling project also provide a basis for assessing the risk of how dangerous natural hazards are for today's population. In a special edition of the highly regarded publication Quaternary Science Reviews, the scientists have now published their findings in a number of journal articles. In the sediments of Lake Van, the lighter-colored, lime-containing summer layers are clearly distinguishable from the darker, clay-rich winter layers — also called varves. In 2010, from a floating platform an international consortium of researchers drilled a 220 m deep sediment profile from the lake floor at a water depth of 360 m and analyzed the varves. The samples they recovered are a unique scientific treasure because the climate conditions, earthquakes and volcanic eruptions of the past 600,000 years can be read in outstanding quality from the cores. 

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5 Holiday Habits That Will Make You More Eco-Friendly

November 12th, 2014
Bet you’re starting to plan your holiday menu, or maybe picturing your holiday decorations. How about a holiday-getaway? Give your family the best celebration with a good conscience by painting your holiday green with these 5 holiday eco-friendly habits!
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Carbon Monoxide – The Silent Killer

November 7th, 2014
With cold weather coming, we start operating appliances like furnaces, stoves, ovens, wood and gas fireplaces, and wood-burning stoves, that can generate carbon monoxide. Guest contributor Penny Atkinson reminds us about risks associated with carbon monoxide and how to protect our homes from this silent killer.
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