From Stephen Chu's farewell letter, as he steps down from the position of Secretary of Energy. I want to conclude by making a few observations about the importance of the Department of Energy missi...
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From Stephen Chu's farewell letter, as he steps down from the position of Secretary of Energy. I want to conclude by making a few observations about the importance of the Department of Energy missi...
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A new breed of high-rise architecture is in the process of being born, thanks to the collaborative efforts of modern design pioneers. Envisioned as the best sustainable option for meeting world housing demands and decreasing global carbon emissions, wooden mega-structures are now one step closer to becoming a reality. “Big Wood,” a conceptual project to the eVolo 2013 Skyscraper Competition, builds on the premise that wood, when harvested responsibly, is one of the best tools architects and engineers have for reducing greenhouse gas emissions and creating healthy communities. Aspiring to become one of the greenest skyscrapers in the world, Big Wood challenges the way we build our cities and promotes timber as a reliable platform to support tomorrow’s office and residential towers... Via Lauren Moss
Geovanni's curator insight,
May 8, 9:32 AM
Fascinating place. Must of been a lot of wood to be created.
Bubba Muntzer's comment,
May 13, 11:44 AM
It takes around 30 years for a seedling to grow into the kind of wood that can be used in construction. A little maintenance is required during that period. Meanwhile it's soaking up CO2 and making oxygen. The only industrial processes required are to cut it down and cut it into boards and 2 x 4s. If you stagger your planting you have an endless supply.
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An amazing 13-second NASA animation depicting how the globe has warmed during the period of 1950 to 2012.
From our friends at NASA comes this amazing 13-second animation that depicts how temperatures around the globe have warmed since 1950. You’ll note an acceleration of the temperature trend in the late 1970s as greenhouse gas emissions from energy production increased worldwide and clean air laws reduced emissions of pollutants that had a cooling effect on the climate, and thus were masking some of the global warming signal.
The data come from NASA's Goddard Institute for Space Studies in New York (GISS), which monitors global surface temperatures. As NASA notes, “All 10 of the warmest years in the GISS analysis have occurred since 1998, continuing a trend of temperatures well above the mid-20th century average. Via Lauren Moss, Stephane Bilodeau, Diedert Debusscher
Diedert Debusscher's curator insight,
January 28, 4:25 AM
Why we should care about global warming. And keep working on solutions (they exist). Delete the scoop?
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As concerns mount over the accessibility and quality of meals in cities, urban agriculture is becoming a practical solution to give communities more choice—all while helping address greenhouse gas emissions from centralized agriculture. Via Lauren Moss, Digital Sustainability Delete the scoop?
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A very long, very bold to-do list for the next 20 years. The city of Toronto has already begun to sketch out policies that could reduce the area’s greenhouse gas emissions in the coming decades. Officials have proposed greening the electric grid, banning incandescent light bulbs, promoting green roofs on commercial buildings, retrofitting 1960s-era high-rises and implementing a stricter energy-efficient building code for new construction. With transportation, the city wants to expand bike lanes and transit infrastructure, all while it anticipates that electric vehicles will grow slowly more common. This is a pretty standard menu of ideas, and according to scientists it will get the city part of the way toward the kind of changes broadly needed to really keep global temperature rise below 2 degrees Celsius. But to really alter the future prospects for climate change, much more will have to happen in Toronto, and every other city. Researchers used the city as a case study to model what a truly aggressive framework might look like. If Toronto wants to cut emissions by 70 percent by 2031, all of these actions (or others with a similar impact) might be required in tandem... Via Lauren Moss, Stephane Bilodeau, Lockall, Territori, Ursula Sola de Hinestrosa
Pamela D Lloyd's curator insight,
February 13, 6:13 PM
While the steps being proposed in Toronto may not be as aggressive as those recommending by researchers concerned with reversing the climate changes caused by humanity's activity, they are at least a step in the right direction and far more than what seems likely in most U.S. cities.
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According to the United Nations Environment Programme, buildings account for approximately 40 percent of worldwide energy use and are responsible for 30 percent of greenhouse gas emissions. They also play an important role in the health and wellbeing of those who inhabit them each day. The mass of information about what makes a building green tends to concentrate on new and innovative designs that create beautiful photo spreads. While such examples are inspiring, they make up a very small percentage of all buildings in operation. Green Buildings Alive is an environmental initiative aimed at collecting and sharing data on existing buildings between 10 and 60 years old. The data is collected from office towers in Australian Central Business Districts (CBDs) and shared on a public website.
Via Lauren Moss, Stephane Bilodeau, Hans De Keulenaer Delete the scoop?
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From
www.iea.org
-
May 25, 2012 12:07 PM
Global carbon-dioxide (CO2) emissions from fossil-fuel combustion reached a record high of 31.6 gigatonnes (Gt) in 2011, according to preliminary estimates from the International Energy Agency (IEA). This represents an increase of 1.0 Gt on 2010, or 3.2%. Coal accounted for 45% of total energy-related CO2 emissions in 2011, followed by oil (35%) and natural gas (20%).
Are there any more words to attack this stupidity of our so-called world leaders? Start preparing for the final reckoning. Via Willy De Backer Delete the scoop?
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