Quotes

Video: See Soil Microfauna Up Close

Remember how exciting it was to use a microscope for the first time? I remember looking at our own hair in fifth grade (I went to a hippy dippy school where we could design many of our own experiments, and we were obsessed with the idea of conditioner causing “buildup,” which, is that even really… More

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Manhattan wetlands?

After Sandy: Are Trees Worth It?

It’s been over a month since Hurricane Sandy whirled up the eastern seaboard, but its effects remain. Hundreds of thousands of people are still reeling and recovering. I’m from New York City, so for me it was intensely upsetting and scary to see my hometown underwater. On a phone call with my brother shortly after the… More

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Where's the tree?

Make The Place Right for the Tree

It’s a common refrain in arboriculture, and you’ve probably heard it before (maybe even here): plant the right tree in the right place. It seems so sensible. It is sensible! But it’s an incomplete rule of thumb, because it doesn’t acknowledge one of the fundamental challenges of growing mature trees in urban environments: the need… More

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It's important to protect trees during construction

Green Building from the Outside InPreserving Trees During Construction

Today’s post from monthly guest author Ellyn Shea is about a truly important, but often overlooked, issue: protecting existing trees during construction. I’m a sucker for success stories, and this is a great one. -LM Every time we lose a mature tree, we lose those benefits. A young replacement tree takes up to 30 years… More

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Video: Where Do Trees Come From?

This video by Australian company Veritasium about how trees create their mass – trunks, branches, so on – was originally linked to by NPR-crush Robert Krulwich. Would it be too embarrassing to admit that I learned something from it?

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In the Aftermath of Hurricane Sandy, a Modest Proposal

This post is by Bert Cregg and was originally posted on The Garden Professors. It is reprinted with permission from the author (thanks, Bert!). Initial estimates from insurers indicate that Superstorm Sandy may be the second costliest storm in US history.  A large portion of the damage attributable to Sandy and several of the deaths associated… More

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A well-trained tree with good structure. Photo by Ellyn Shea.

Training You to Train Young Trees

After a big windstorm, we who work with and love trees take note of the damage with trepidation. Large trees that have split apart or lost a major part of their structure often cannot be saved and must be removed. Fortunately tomorrow’s urban forest has a better chance – if we act today!

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Target Center green roof

The Costs and Benefits of Green Roofs

While green roofs have been used for the past 30-40 years in Europe, the spread of green roof technology in North America is much more recent. Need for low impact stormwater management techniques is one of the biggest drivers for green roof technology in North America.

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Large trees make us healthier

Aren’t Urban Trees A Public Health Issue?

Sometimes, in order to bring new understanding to an issue and cut through the meaningful-but-sometimes-numbing-data, you need to reframe it. There are so many ways that big trees enhance life for people and other living things: air quality, safety, water quality, lower temperatures. These cross environmental, development, and design boundaries. All are fundamentally public health… More

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Minimum Soil Volumes for Trees Part 1: Lessons Learned from Municipalities

Trees need an adequate volume of rootable, oxygen-rich soil to thrive, and minimum soil volume policies are a powerful tool for arborists and other advocates to leverage better growing conditions for trees, especially in urban areas. In preparation for Peter MacDonagh’s presentation at the 2012 ISA conference in Portland, OR, “Leveraging Healthy Urban Forests with… More

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