Pollution

USEPA Proposes One – Hour Sulfur Dioxide Standard, to Drop 24 -hr and Annual Primary Standards
November 18, 2009 07:10 AM - Roger Greenway, ENN

The US Environmental Protection Agency has proposed a new one – hour Sulfur Dioxide (SO2) standard. The SO2 standard has not been changed since 1971. There has not been a health based standard shorter than 24 hrs for SO2 since short term acute effects have not been well known. A secondary standard of 3-hrs has been in effect. This was set to address welfare considerations, not health.

Increase in GM Crops, Resistant Weeds Lead to Dramatic Rise in Pesticide Use
November 17, 2009 03:00 PM - Vanessa L. Bourlier, ENN

The widespread use of genetically modified (GM) crops engineered to tolerate herbicides has led to a sharp increase in the use of agricultural chemicals in the U.S. This practice is creating herbicide-resistant "super weeds" and an increase in chemical residues in U.S. food, according to a new report released today by The Organic Center, the Union for Concerned Scientists, and the Center for Food Safety.

Nanoparticles Used in Common Household Items Shown to Cause Genetic Damage
November 17, 2009 10:35 AM - ScienceDaily

Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to toothpaste to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson Comprehensive Cancer Center. The TiO2 nanoparticles induced single- and double-strand DNA breaks and also caused chromosomal damage as well as inflammation, all of which increase the risk for cancer.

Tiny Bubbles Used to Clean Oil-Contaminated Water and Soil
November 16, 2009 12:32 PM - Vanessa L. Bourlier, ENN

According to a recently published article in the journal Chemosphere, an inexpensive new method has been developed at the University of Utah to remove oil sheen from polluted water by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters.

Recycle! Recycle!
November 14, 2009 07:58 AM - Roger Greenway, ENN

It’s that time again! Time to renew our commitment to recycling. Take the pledge to learn more and recycle all you can. Find out what things can be recycled, spread the word about recycling, and help reduce waste going into landfills, improve our efficiency, and fight climate change.

Carbon Permit Allocation Debated in US Senate
November 13, 2009 07:01 AM - Ayesha Rascoe, Reuters

In the latest obstacle to proposed U.S. climate legislation, key lawmakers on Thursday urged Senate Democrats to change distribution plans for carbon permits to offer more protection for coal-dependent utilities.

CO2 Emissions are not Changing the Ratio of Airborne CO2 to that taken up by the Oceans and Plants
November 11, 2009 03:14 PM - Roger Greenway, ENN

The University of Bristol in the UK has published a study based not on climate modeling, but on statistical analysis of data including historical data from Antarctic ice cores. The study shows that the balance between the airborne and the absorbed fraction of carbon dioxide has stayed approximately constant since 1850, despite emissions of carbon dioxide having risen from about 2 billion tons a year in 1850 to 35 billion tons a year now. This suggests that terrestrial ecosystems and the oceans have a much greater capacity to absorb CO2 than had been previously expected.

Hurricane Ida Approaches US Gulf Coast
November 9, 2009 07:05 AM - Roger Greenway, ENN

Hurricane Ida continues to move north towards the US Gulf Coast this morning. At 3am it was in the central part of the Gulf of Mexico, moving north-northeastward at 16 mph.

U.S. Chamber of Commerce, Cap & Trade Issue
November 9, 2009 06:43 AM - Shannon Arvizu, Triple Pundit

The U.S. Chamber of Commerce may actually have a better idea than a cap-and-trade bill for cutting emissions. And, contrary to popular opinion, they do recognize climate change and the need for clean tech development.

Climate Summit to host 40 heads of state
November 6, 2009 05:15 PM - Reuters

Some 40 heads of state plan to attend a U.N. meeting in December in Copenhagen meant to agree a global warming deal, the U.N. climate chief said on Friday.

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