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67ac286a0d2716a8bfa1c588bc12ba7b
2010-02-02 07:06:13

Climate change appears to be driving accelerated growth Speed is not a word typically associated with trees; they can take centuries to grow. However, a new study published the week of Feb. 1 in the Proceedings of the National Academy of Sciences has found evidence that forests in the Eastern United States are growing faster than they have in the past 225 years. The study offers a rare look at how an ecosystem is responding to climate change. For more than 20 years forest ecologist Geoffrey...

2010-01-11 10:51:00

VIRGINIA BEACH, Va., Jan. 11 /PRNewswire/ -- STIHL Inc., a leading manufacturer of handheld outdoor power equipment, has renewed its title sponsorship for the STIHL Tour des Trees to benefit the TREE Fund. This weeklong cycling event has become America's largest fundraiser to improve the care of trees through research and education. The 2009 STIHL Tour des Trees raised nearly a half million dollars to benefit the Tree Research and Education Endowment (TREE) Fund. Since its inception in...

2009-12-11 19:39:08

A groundbreaking scientific study, i-trees began today with pupils from Manchester Academy joining scientists from The University of Manchester to start the two year project, which will accurately measure the important impact of trees in the fight against climate change. There are nine i-trees plots all located on the Corridor, the Oxford Road area of the City. Each plot consists of three 3m x 3m grids of tarmac, grass and a tree which are linked to monitoring equipment that gathers...

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2009-12-04 08:15:11

Isotope analysis provides accurate information The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada. Scientists have long looked at the width of tree rings to estimate temperature levels of past years. Larger rings indicate more tree growth in a season, which translates into warmer summer temperatures. But the analysis of carbon and oxygen isotopes in tree rings can also provide accurate...

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2009-11-17 05:55:00

Ancient high-altitude trees grow faster as temperatures rise Increasing temperatures at high altitudes are fueling the post-1950 growth spurt seen in bristlecone pines, the world's oldest trees, according to new research. Pines close to treeline have wider annual growth rings for the period from 1951 to 2000 than for the previous 3,700 years, reports a University of Arizona-led research team. Regional temperatures have increased, particularly at high elevations, during the same 50-year...

2009-10-08 15:00:00

NEBRASKA CITY, Neb., Oct. 8 /PRNewswire/ -- As part of its one-year anniversary celebration of the official launch of the Tree Campus USA program, the Arbor Day Foundation and Toyota will plant trees on five college campuses across the United States this fall. The first tree-planting event will be held at the University of Maryland on Sunday, Oct. 11. In the fall of 2008, the Arbor Day Foundation started the Tree Campus USA program to recognize colleges and universities that practice...

2009-10-02 14:05:00

SANTA CLARA, Calif., Oct. 2 /PRNewswire/ -- Chegg.com, the number one online textbook rental company, has helped the environment by planting a tree for every book rented, sold or bought. Today, the company announced that it has planted over one million trees in 2009 through a partnership with the American Forests' Global ReLeaf® program. The tree-planting program demonstrates that Chegg not only gives back to students in the form of serious savings on their textbooks,...

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2009-09-23 13:44:44

If past is prelude, trees and shrubs may have a harder time keeping pace with global warming Can we predict which species will be most vulnerable to climate change by studying how they responded in the past? A new study of flowering plants provides a clue. An analysis of more than 5000 plant species reveals that woody plants "” such as trees and shrubs "” adapted to past climate change much more slowly than herbaceous plants did. If the past is any indicator of the future, woody...

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2009-09-18 08:47:20

Researchers at North Carolina State University are working to demonstrate that trees can be used to degrade or capture fuels that leak into soil and ground water. Through a process called phytoremediation "“ literally a "green" technology "“ plants and trees remove pollutants from the environment or render them harmless. Through a partnership with state and federal government agencies, the military and industry, Dr. Elizabeth Nichols, environmental technology professor in NC...

2009-09-15 11:20:00

One-hour NGC Episode Premieres Tuesday, September 29, 2009, at 10 p.m. ET/PT --October Magazine Includes Pull-Out Poster of Full-Length Digital Portrait of Redwood Tree, Composed of 84 Images Stitched Together WASHINGTON, Sept. 15 /PRNewswire-USNewswire/ -- This fall, National Geographic journeys deep into the great redwood forests on the American West Coast. For the first time, we'll size up the health and future of the entire redwood range and scale the trees to glimpse rich canopy...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'