The Abundance of Invasive Species
October 25, 2013 04:05 PM - Robin Blackstone, ENN
Recognizing that invasive species are major catalysts for environmental change, researchers from the University of Wisconsin—Madison are relooking at how we account for invasive species populations. Instead of researching the behaviors and habits of the invasive species, researchers Gretchen Hansen and Jake Vander Zanden are considering abundance distributions of invasive species. They hypothesize that measuring abundance in an area is a more helpful determinate for defining the most optimal methods of prevention, containment, control and eradication.
Introduction to Persistent, Bioaccumulative, Toxic (PBT) Compounds in the Environment
October 24, 2013 05:03 PM - Robin Blackstone, ENN
Global chemical contamination is a worldwide concern affecting every being on earth. Chemical exposure, whether it is through air, water, plants, soil or our modern living environment is unavoidable. But certain chemicals and compounds having Persistent, Bioaccumulative, Toxic (PBT) characteristics are more dangerous to our environment than others because of their inability to break down easily, are easily transferred throughout all forms of environmental media, and posing risks to human health and the ecosystem due to their toxicity at low concentrations.
Ecology: Life's Connections
October 24, 2013 04:41 PM - Glen Barry, Ecologist
Ultimately, all humanity and all life have is the biosphere, the thin layer of life just above and below Earth’s surface, composed of ancient, miraculously evolved natural ecosystems. The natural Earth is a marvel - a complex coupling of species within ecosystems, whereby life begets life. Ecology is far more than the study of life and its environment. The word is used here as a synonym for ecosystems - the vibrant connections that emerge between species across scales, which cumulatively make life on Earth possible.
A ground-breaking, legally-binding global treaty on reducing mercury pollution has been signed by 92 countries. The treaty spells "the beginning of the end of mercury as a threat to human health and the environment", UN Environment Programme (UNEP) executive director Achim Steiner, told a diplomatic meeting in Japan earlier this month (10-11 October) where the treaty was signed. But much work remains to provide the funding and technical and scientific advice needed to implement the treaty, and to expand mercury monitoring capacity worldwide, experts say.
Air Pollution and Cancer Spikes linked in Alberta
October 23, 2013 11:48 AM - Editor, ENN
Alberta is Canada's industry epicenter and home to more than 40 companies that produce industrial emissions. Recent studies conducted by the University of California and the University of Michigan have indicated higher levels of contaminants which can potentially be linked to spikes in the incidences of cancer in the region.
Green Building is Now the Law in Dallas
October 23, 2013 09:45 AM - Stuart Kaplow, courtesy Green Building Law Update via, Clean Techies
Dallas has now accepted the first building permit applications under its green building ordinance. Dallas is one of the first major cities in the nation to implement comprehensive mandatory green building standards for both all new residential and commercial construction. By Resolution 08-1070 adopted unanimously on April 9, 2008 Phase 1 of the law was effective in 2009 and Phase 2 (originally to be effective October 1, 2011) was fully implemented October 1, 2013.
Great Progress in Fukushima Daiichi Nuclear Accident Remediation Efforts
October 23, 2013 08:27 AM - Editor, ENN
United Nation experts are encouraging the Japanese government to better communicate contamination goals with the public but are otherwise very positive about the progress that has been made in the Fukushima Daiichi nuclear accident remediation efforts in Japan. The experts are from the International Atomic Energy Agency (IAEA) a U.N. task force who oversees and reviews remediation efforts. They have been conducting ongoing reviews of the situation since the 2011 earthquake.
Red Smog alert chokes northern China
October 21, 2013 12:23 PM - Robin Blackstone, ENN
A red alert has been issued for several cities in northern China including Changchun and Harbin. A red alert is the highest level on the four-tiered alert system and is defined as serious air pollution for three consecutive days. According to Xinhuanet News, "the density of PM 2.5 -- airborne particles measuring less than 2.5 microns in diameter, exceeded 500 micrograms per cubic meter on Monday morning." Visibility is presently less than 50 meters in the downtown capital city of Harbin of Heilongjiang Province.
Stricter Standards are Needed for Cruise Ship Sewage Treatment
October 21, 2013 09:43 AM - Editor, ENN
Cruise ships are no doubt engineering marvels that are meant to provide vacationers a luxurious and entertaining vacation. In 2012, there were approximately 200-300 active cruise ships, and with most of these ships operating 24 hours/day year-round, one can imagine all of the resources that go into daily operations. From the endless buffets and drinks available to staff making sure guests have access to clean drinking water and amenities, these floating cities are faced with some other hidden issues — one being what to do with all that sewage. While cruise ships operating are required to discharge only treated wastewater within three miles of the shore, beyond that limit, pretty much anything goes in terms of sewage discharge. According to Friends of the Earth (FoE), the Environmental Protection Agency estimates an average cruise ship with 3,000 passengers and crew produces 21,000 gallons of sewage daily — and this is a conservative estimate, since some new ships can carry as many as 8,000 passengers and crew.
In the UK, fracking debate distracting public from energy efficiency
October 21, 2013 06:56 AM - Staff, ClickGreen
Public debates such as fracking for shale gas is distracting the nation from focusing on energy efficiency, according to new research from the Energy Saving Trust. The findings of the new poll also reveal one in four households are worried about how the UK will generate enough energy in just FIVE years' time.