Earth’s Magnetic Poles Swapping ??

“The Earth’s magnetic field surrounds our planet like an invisible force field – protecting life from harmful solar radiation by deflecting charged particles away. Far from being constant, this field is continuously changing. Indeed, our planet’s history includes at least several hundred global magnetic reversals, where north and south magnetic poles swap places. So when’s the next one happening and how will it affect life on Earth?

During a reversal the magnetic field won’t be zero, but will assume a weaker and more complex form. It may fall to 10% of the present-day strength and have magnetic poles at the equator or even the simultaneous existence of multiple “north” and “south” magnetic poles.

Geomagnetic reversals occur a few times every million years on average. However, the interval between reversals is very irregular and can range up to tens of millions of years.

There can also be temporary and incomplete reversals, known as events and excursions, in which the magnetic poles move away from the geographic poles – perhaps even crossing the equator – before returning back to their original locations. The last full reversal, the Brunhes-Matuyama, occurred around 780,000 years ago. A temporary reversal, the Laschamp event, occurred around 41,000 years ago. It lasted less than 1,000 years with the actual change of polarity lasting around 250 years.

Power cut or mass extinction?  (Read More)

For the climate group – “The difficulties of predicting the weather beyond a few days are widely known, despite us living within and directly observing the atmosphere. Yet predicting the Earth’s core is a far more difficult prospect, principally because it is buried beneath 3,000km of rock such that our observations are scant and indirect”

Training Profile – “Tracking Carbon“?

Forestry Training and Tree Planting Grants in Pennsylvania PA Department of Conservation and Natural Resources.

TreeVitalize state-wide 2017 grant applications available

The Pennsylvania Urban & Community Forestry Council has secured funding for tree planting grants and innovative projects grants throughout the state through our partnership with the PA Department of Conservation and Natural Resources.

Tree planting grants will be available to Pennsylvania municipalities and non-profit agencies throughout the state for projects related to tree plantings with a strong volunteer base. Applicants are required to have the assistance of their local service forester and/or Penn State extension forester in developing a planting plan. Interested applicants should begin by contacting their local DCNR service forester or Penn State Extension Forester and include them in any conversations concerning proposed tree plantings. Those foresters can provide necessary guidance pertaining to grant opportunities as well as native species and sustainable projects. Applications are due September 30, 2016. Notifications will be posted by November 1st with grant terms to include January 1, 2017 – December 31, 2017.

For more information, or for a copy of the grant application, please contact Jessica Cavey, Development and Grants Coordinator, at (717) 599-8650 or c-jcavey@pa.gov.

Tree Tenders on-site classes
Join thousands of other concerned citizens like yourself. Become a Tree Tender and help increase tree canopy cover in your community. Tree Tenders® is a training program that empowers concerned residents to make dramatic strides towards restoring and caring for the tree canopy in their communities. The course is designed for lay people and experts alike. Become one of the Tree Tenders restoring and tending your part of the forest. Instruction is provided by DCNR’s Bureau of Forestry, in partnership with Penn State Extension, PHS, and other local urban forestry experts.

Tree Tenders training includes: Tree Biology, Urban Stresses on Trees, Tree Identification,Tree Pruning and Root Care, Tree Planting Techniques, Community Organizing

Upcoming classes offered by Pennsylvania Horticultural Society:

September 21, 28, and October 5 – Philadelphia, PA – 5:45 PM to 9 PM

September 22, 29, and October 6 – New Hope, PA – 5:45 PM to 9 PM

September 28 and October 5 and 19 – Haverford, PA – 5:45 PM to 9 PM

 

Register online at http://phsonline.org/programs/tree-tenders

Stay tuned for next month’s email for dates and locations of other Tree Tenders classes around Pennsylvania this fall.

 

Managing Invasive Plants

August 19, 2016, 8:30 AM to 3 PM

Williamsport, PA

Invasive weeds and pests are a major threat to our natural and cultivated landscapes, spreading quickly and displacing or killing native plants. The Managing Invasive Plants program will provide participants with the knowledge and skills to properly identify invasive plants and develop strategies for treatment and control. Topics discussed will include invasive species identification, invasive plant control, and herbicide application methods, equipment, and safety. A morning classroom session will be followed by an afternoon field demonstration.

 

PDA pesticide applicators update credits will be offered: Category 05 (4 credits), Category 06 (4 credits), Category 10 (4 credits), Category 23 (4 credits), Core (4 Credits)

ost: $35

Online registration is available at http://extension.psu.edu/invasive-plants

For more information, contact Vincent Cotrone at (570) 825-1701 or vjc1@psu.edu.

 

2016 Tree Canopy Conference: Preserving Trees in Our Communities

October 13, 2016, 9 AM to 5 PM

Haverford College, Stokes Hall Auditorium

Why is Tree Canopy So Important? A healthy tree canopy provides important ecosystem services including air pollution removal, storm water runoff reduction, and energy conservation. Tree canopy provides habitat for wildlife, and also has a positive impact on human wellbeing, community cohesion, and economic stimuli. In this conference, we will look at tree canopy preservation and reduction, and consider some of the greatest threats communities are facing as they try to preserve canopy cover.

Featured Speakers:

  • Joseph Townsend, University of Delaware – The important benefits of trees in the urban environment
  • Jason Henning, USDA Forest Service – Computerized tools, like iTree, to measure canopy cover
  • Scott Wade, Longwood Gardens – Pennsylvania Champion Trees

Cost: $125 (includes lunch and break refreshments)

Continuing Education Units: This conference carries CEUs for ISA certified arborists and PA landscape architects.

Register online at https://online.morrisarboretum.org/canopy

For more information or to register by phone, call the Morris Arboretum Education Department at (215) 247-5777.

This conference sponsored by Morris Arboretum School of Arboriculture and Haverford College Arboretum. Co- Sponsored by John E. Ward & Company Tree Experts.

Brian Wolyniak

Extension Urban Forester

Email: bjw229@psu.edu

(412) 482-3455

The Penn State Center – Pittsburgh

Extension and Outreach

1435 Bedford Avenue, Suite A

Pittsburgh, PA 15219

Julianne Schieffer

Extension Urban Forester

Email: jxs51@psu.edu

(610) 489-4315

Penn State Ecosystem Science &

Management

1015 Bridge Rd

Collegeville PA 19426

More Training Courses in Water Resources and Ecology.