The goal of this study was to identify commercial chemicals that might be persistent and bioaccumulative (P&B) and that were not being considered in current Great Lakes, North American, and Arctic contaminant measurement programs.

In the early 1970s, scientists warned that anthropogenic chemicals containing chlorine (Cl) would lead to destruction of stratospheric ozone (O3), the protective veil that reduces the amount of harmful ultraviolet (UV) rays that reach the Earth

A hybrid life cycle-based trans-boundary greenhouse gas (GHG) emissions footprint is elucidated at the city-scale and evaluated for 8 US cities.

One of society

The generation and distribution of electricity comprises nearly 40% of U.S. CO2 emissions, as well as large shares of SO2, NOx, small particulates, and other toxins. Thus, correctly accounting for these electricity-related environmental releases is of great importance in life cycle assessment of products and processes.

Carbon emissions from industry are dominated by production of goods in steel, cement, plastic, paper, and aluminum. Demand for these materials is anticipated to double at least by 2050, by which time global carbon emissions must be reduced by at least 50%.

The authors explore how school policies influence the environmental impacts of school commutes. The research is motivated by increased interest in school choice policies (in part because of the U.S.

The UK appears to be a leading country in curbing greenhouse gas (GHG) emissions. Unlike many other developed countries, it has already met its Kyoto obligations and defined ambitious, legally binding targets for the future. Recently this achievement has been called into question as it ignores rapidly changing patterns of production and international trade.

The U.S. is strongly considering regulating hydrofluorocarbons (HFCs) due to their global climate change forcing effects. A drop-in replacement hydrofluoroether has been evaluated using a gate-to-grave life cycle assessment of greenhouse gas emissions for the trade-offs between direct and indirect carbon dioxide equivalent emissions compared to a current HFC and a historically used refrigerant.

China's failure to control nitrogen emissions could mar its success in reducing environmental levels of sulphur dioxide (SO2), a new study finds. Both nitrogen and sulphur emissions are major contributors to soil acidity and environmental pollution.