We’ve all heard at various times about the problem of plastic debris in the ocean: Birds and marine animals eat it, and larger items can entangle and even strangle fish and sea mammals. In part, the danger to animals has led to bans on plastic bags in some cities—although discarded items and even the plastic pellets used in manufacturing plastic goods can pose an even bigger threat.
Now, an oceanographer and a researcher at the University of Delaware have discovered there is more plastic in the water than we thought. Although estimates are usually based on surface water measurements, oceanographer Giora Proskurowski observed how wind drives the debris beneath the surface. He began collecting samples from different levels and found an abundance of plastic not only floating on the surface but also lurking at depths of about 20 meters. He believes there is about two and a half times more debris in the oceans than previously estimated.
His research was done in the North Atlantic, using a tow net to collect samples from specific depths. Surface water is considered to be the top 25 centimeters or 9.8 inches of water; he found debris down as far as 25 meters, or 82 feet.
Upcoming Forester University Webinars
May 2nd, 2012
Limitations of Commonly Found Construction Site Sediment Control BMPS
Are your temporary BMPs reliable? Join Jerald S. Fifield and Tina R. Evans for the third installment of our advanced Sediment and Erosion Control Master Class Series and the second part of our Effective Sediment Containment Systems Series, Limitations of Commonly Found Construction Site Sediment Control BMPs, exploring temporary BMPs, their limitations (e.g., barrier BMPs), and the principals and practice in assessing and evaluating the effectiveness of barrier BMPs.
May 3rd, 2012
How to Conduct a Water Audit and Avoid the Pitfalls
Avoid the water auditing pitfalls! Join Troy Aichele, LEED AP (O+M) of Aichele and Associates LLC for How to Conduct a Water Audit and Avoid the Pitfalls on Thurs., May 3rd to learn the step-by-step process of performing a water audit; the key information, tools, equipment, rebates, and typical pitfalls in performing successful audits; and learn how to use a custom plumbing fixture water audit spreadsheet. Learn how to successfully conduct your own water audit and avoid common water auditing pitfalls to ensure your audit goes smoothly.
May 17th, 2012
Effective LID Stormwater Reduction
Improve your stormwater reduction through effective low impact design (LID). Join Douglas Beyerlein, P.E., P.H., D.WRE to explore the different types of LID (e.g., green roofs, rain gardens / bioretention, impervious runoff dispersion, etc.), how they work
May 31st, 2012
How to Calculate Water Audit Payback Periods and Write Water Audit Reports
Maximize your payback! Join Troy Aichele, LEED AP (O+M) of Aichele and Associates LLC for How to Calculate Water Audit Payback Periods and Write Audit Reports on Thurs., May 31st addressing the most essential skill in water auditing: how to calculate payback period and incorporate it effectively in your water audit report. Within this discussion, Aichele will explore how to calculate water audit improvement periods using a custom-built payback spreadsheet calculator; how to calculate use rates; how to incorporate savings, rebates and utility increases into your payback calculations; and how to write a water audit report letter incorporating water audit results and payback periods.
April 18th, - May 25th, 2012
Sediment and Erosion Control
Master Class Series
Join industry expert and bestselling author Jerald S. Fifield, Ph.D., CISEC, CPESC and Tina R. Evans, PE, CISEC for a comprehensive 6-part online master class and workshop series (0.9 CEUs / 9 PDHs) exploring the ins and outs of effective sediment and erosion control plan design and review based on Fifield’s recently released 3rd edition of the bestselling manual Designing and Reviewing Effective Sediment and Erosion Control Plans (included in your Master Class Series package).
April – May 2012
Water Auditing Master Series
Learn the ins-and-outs of water auditing! Join 2010’s Speaker of the Year, Troy Aichele, LEED AP (O+M) of Aichele and Associates LLC for the Water Auditing Master Series, a 3-part webinar/webcast series focusing on getting you up-to-speed on the key attributes, uses, and opportunities in water auditing, as demonstrating step-by-step how to conduct a water audit, avoid the pitfalls, calculate payback periods, and incorporate these into your reports.
* Water Auditing 101: Introduction to Water Auditing
* How to Conduct a Water Audit and Avoid the Pitfalls
* How to Calculate Water Audit Payback Periods and Write Water Audit Reports