New zero-energy districts: A mile high and growing

January 4, 2017 by  
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Colorado takes the cake for upcoming net zero energy districts to watch in 2017 and beyond.

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New zero-energy districts: A mile high and growing

Are ‘open source’ seeds necessary for a resilient food system?

January 4, 2017 by  
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As the global agriculture industry consolidates with the recent merger between Monsanto and Bayer, the question is raised: What does it mean for the rest of us?

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Are ‘open source’ seeds necessary for a resilient food system?

RECIPE: Organic rainbow cake made without artificial food coloring

July 16, 2016 by  
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Make your kid’s next birthday party the most magical ever with this delicious, organic rainbow cake. This cake is made without artificial food coloring and tastes as good as it looks. Read on for the full recipe.

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RECIPE: Organic rainbow cake made without artificial food coloring

10 great plants for a living roof

July 16, 2016 by  
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Rooftops are tough place for plants: they’re vulnerable to intense heat, cold, wind and drought, plus they can’t support a lot of weight, so the plants need to grow in just a few inches of soil (actually, ultra-lightweight soilless growing mediums are typically used). Thus, it’s plants that grow naturally on desert cliffs, alpine crags, and other such inhospitable places that are used for green roofs . Fortunately, these include many truly stunning species—some exquisitely beautiful, others absolutely bizarre and even a few that are edible or otherwise useful. Green roof plants fall into four general categories: Related: Need a Rooftop Farm? Call this Company Succulents These are the mainstays of any green roof and should form the bulk of the planting, unless provisions are made for the roof to support soil deeper than the 3 to 4 inches that is typical. These tiny succulents thrive with virtually no water or soil. They are available in a kaleidoscope of colors, giving a broad palette with which to design your living roof . Sedum spp. Also known as stonecrop , because the succulent foliage resembles smooth, polished stone, sedums are the royalty of living roof plants. There are literally hundreds of varieties, found growing in cliff-side cracks and crannies around the world and were the first species employed in the green roof industry. With so many distinctly colored varieties available, you can paint a beautiful picture on your roof. Sempervivum spp. Called houseleeks (because they were used as a traditional Scandinavian rooftop plant) by some and hen and chicks by others (the mature rosettes “give birth” to tiny replicas of themselves as they spread), sempervivum means “evergreen” in Latin, indicating that your roof will be attractive year-round with this type of succulent. Like sedums, they stay low to the ground and come in many colors. Delosperma spp. are spreading succulents grown for their daisy-like flowers , which bloom throughout the growing season. There are white, yellow, red and purple varieties and most have the habit of changing their shade of color as the flowers fade, creating a monochromatic effect Aenoium arboreum is a variety of houseleek that grows as a tiny tree (usually less than two feet tall) that looks like it would be more at home on Mars than planet Earth. It’s not a spreading ground cover like the other succulents in the list, but it can create a bit of vertical variation in your roof garden. The variety Zwartkop  or Schwartzkopf (black head, in Dutch or German) will create plenty of interest with its color as well—it’s such a deep purple that it’s almost black. Related: How to Make Your Own Green Terrarium Grasses Most grasses would fail on a living roof , unless they were watered constantly in the summer. However, there are a few that have what it takes to withstand the conditions. To be honest, most green roof grasses are not considered as such from a botanical perspective, and are more accurately termed “grass-like plants”. Like the succulents, they are good for covering a lot of territory and create a pleasing contrast when combined with succulents. Many seed themselves, making your rooftop garden a self-replenishing landscape. Armeria maritima is not at all related to what grows in lawns, but the foliage appears as a tidy green clump of grass. In nature, it grows in ocean-side cliffs and dunes (hence the name maritima ), making it well adapted to rooftop conditions—especially those by the sea. It is also called sea thrift and, unlike any grass, it is crowned with pink or purple flowers in summer. Carex nigra is technically considered a sedge and is often used on living roofs, because its roots require less soil than most other grasses, or grass-like, plants. Wildflowers These are used more sparingly and benefit from a bit deeper soil than the other species listed here. This can be accomplished by mounding the planting medium here and there to create little wildflower hummocks. Use them for a taller accent in sporadic locations in your living roof design . Aster alpinus is an aster from alpine regions, meaning it is no stranger to intense weather and thin soil. Nonetheless, it produces brilliant sprays of deeply saturated purple flowers with yellow button centers, which attract hordes of butterflies. Achillea millefolium is commonly known as yarrow; a wildflower that, unlike asters, will spread across the surface of your living roof as a ground cover. This powerful medicinal plant has ferny, aromatic foliage and tall flower stalks capped with broad concave blossoms which make great landing pads for butterflies. Yarrow has the added benefit of tolerating light foot traffic. Related: The Biggest Hospital in North America to Feature a Green Roof with Medicinal Herbs Aromatic Herbs This is where a living roof crosses over to become an herb garden. Many of the most common culinary herbs happen to grow in dry, rocky places, making them ideal candidates for a green roof . The varieties listed here are low-growing, wide-spreading groundcovers; the other key trait for a living rooftop carpet. Thymus vulgaris is the standard garden variety of thyme that creeps along just a few inches tall and, like yarrow, can tolerate being walked upon.  It makes a luxurious aromatherapy bed for rooftop sunbathing and, of course, can be harvested on demand for the kitchen. Origanum vulgare is common oregano . Like thyme, it is native to the rocky hills of the Mediterranean basin and it can bring that special flavor to your rooftop if you choose to plant it. It’s also a ground cover, growing 4 to 6 inches tall. All images via Shutterstock  

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10 great plants for a living roof

How can I reuse or recycle muffin/cupcake cases?

March 29, 2010 by  
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(Oooh, alliteration!) We’ve had a Compost This email from Charlie: Can I compost those paper fairy cake cases? I’m presuming the question is about used ones rather than a box of new ones (you’re not going to use them

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How can I reuse or recycle muffin/cupcake cases?

More Green Modern Gingerbread

December 21, 2009 by  
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Images via Inhabitots Well, it is a stretch to call this green gingerbread, it doesn’t have solar panels or turbines or heat pumps, but it is modern, and is even called the Cake Study House in homage to the Case Study houses of the early sixties. It’s from Kristina Hahn Atelier, who call …

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More Green Modern Gingerbread

Most Bizarre Climate Change Denying Argument by a Politician Yet? (Video)

December 2, 2009 by  
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Photo via Politico Sure, Sen. James Inhofe has got some good ones. But Congressman McCotter may have just taken the cake

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Most Bizarre Climate Change Denying Argument by a Politician Yet? (Video)

Yves Behar on the Integrative Sustainable Design at Opportunity Green (Video Interview)

December 2, 2009 by  
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Image by Matt Grigsby.

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Yves Behar on the Integrative Sustainable Design at Opportunity Green (Video Interview)

One High School Student’s Big Idea to Harness Wasted Energy

December 2, 2009 by  
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Image credit: Good Countless people spend an hours in the gym every week. While there, they do a lot of rowing, spinning, and running

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One High School Student’s Big Idea to Harness Wasted Energy

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