Pesticides tied to lower IQ in children

Children exposed in the womb to substantial levels of neurotoxic pesticides have somewhat lower IQs by the time they enter school than do kids with virtually no exposure. A trio of studies screened women for compounds in blood or urine that mark exposure to organophosphate pesticides such as chlorpyrifos, diazinon and malathion.

Amoebas in drinking water: a double threat

Amoebas — blob-shaped microbes linked to several deadly diseases — contaminate drinking-water systems around the world, according to a new analysis. The study finds that amoebas are appearing often enough in water supplies and even in treated tap water to be considered a potential health risk.

Glaciers largely stable in one range of Himalayas

An important portion of the Himalaya's glacier cover is currently stable and, thanks to an insulating layer of debris, may be even growing, a new study finds. The study's conclusion contradicts a portion of the 2007 Intergovernmental Panel on Climate Change report that had to be retracted last year because it could not be substantiated.

A New Source Of Dioxins: Anti-Bacterial Soap Combining with Chlorine in Wastewater Sewage Plants

Manufacturers have been adding the germ fighter triclosan to soaps, hand washes, and a range of other products for years. But here's a dirty little secret: Once it washes down the drain, that triclosan can spawn dioxins. Dioxins come in 75 different flavors, distinguished by how many chlorine atoms dangle from each and where those atoms have attached (their locations indicated by the numbers in the front part of a dioxin's name). The most toxic is 2,3,7,8-tetrachlorodibenzo-p-dioxin, or TCDD. Some related kin bearing four to eight chlorines are also toxic, just less so.