Category Archives: Trees

Why “Fresh Air and Sunshine” is Dangerous

By Daniel Brouse Q: Do you know what are two of the most dangerous exposures for children and the elderly? A: Fresh air and sunshine. Either may be hazardous; however, when fresh air and sunshine are combined, the result can be extreme. On days like today, do not go out and play. The sun can […]

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WARNING! Hold Your Breath / Air Quality Alert

By Daniel Brouse Many days in the Philadelphia region are not healthy for breathing. On “Ozone Action Alert Days” you are advised to avoid outside activities. Children should not play outdoors. Avoid running and other fitness activities. Do not breathe in unconditioned air. Low level ozone is volatile and causes micro-explosions in your lungs that […]

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Losing 10 Billion Trees Per Year

Part of the study Foliage Spoilage & the Trees’ Canopy Collapse Thomas Crowther is a Yale Climate & Energy Institute postdoctoral fellow at the Yale School of Forestry & Environmental Studies (F&ES) and led a study and census of the world’s trees (2015). The study determined there are 3 trillion trees on Earth; however, the […]

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Trees: Sudden Oak Death “Unstoppable”

A new report out of Cambridge University has determined that the sudden oak death epidemic in California is unstoppable. “Sudden oak death – caused by Phytophthora ramorum, a fungus-like pathogen related to potato blight – has killed millions of trees over hundreds of square kilometres of forest in California. First detected near San Francisco in […]

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Climate Change Health Hazard

Physicians For Social Responsibility report: High in the Earth’s atmosphere, naturally occurring ozone is essential to protecting life on Earth from the harmful ultraviolet rays of the sun. However, here on Earth’s surface, ground-level ozone is a harmful pollutant. Source of Ozone: Ground-level ozone is formed when two major classes of air pollutants — nitrogen […]

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12.5 Million Dead Trees in California

CALIFORNIA — In a survey conducted by the U.S. Forest Service, they found the severe drought in California has caused the death of over 12 million trees. California is in its third year of drought. In 2014, a large increase in tree mortality was observed, especially in the Central Coast and Southern Sierra Ranges. Ground […]

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Death Of Ash Trees

Ash trees are dying for a variety of reasons. In the USA, Emerald Ash Borer is killing many trees. In Europe, the fungus Chalara is spreading and killing trees. More about the decline of the forests. Emerald Ash Borer The signs and symptoms of an EAB attack The symptoms an ash tree shows when it […]

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