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Ada Lovelace Day allows us an opportunity to highlight the work of women in science.

Lady Ada Lovelace was a contemporary and colleague of Charles Babbage , he innovator of the programmable

Cambridge University Engineering Department Controversial tests of geoengineering hardware, initially set to start in October, have been delayed. The British government agency that provides funding to the project issued the delay on September 29, in order “to allow time for more engagement with stakeholders.” [More]

WELLINGTON (Reuters) - A drought-stricken Pacific island nation is down to its last few days of water, prompting a mercy dash by New Zealand and Australia with water-making equipment. Tuvalu, the world's fourth-smallest nation sitting just below the Equator, has declared a state of emergency and is rationing water. [More]

(Reuters) - A mother's exposure to airborne pollutants at work during her pregnancy may increase the likelihood that her unborn child will later develop asthma, a Danish study said. The review of registry data on 45,658 seven-year-old children and their mothers found that 18.6 percent of children of mothers who were exposed to low-molecular-weight particles at work during pregnancy developed asthma, compared to 16.1 percent of the general population. [More]

The U.S. Preventive Services Task Force is about to recommend that healthy men forgo being screened for prostate cancer with the familiar PSA (prostate-specific antigen) blood test.

The U.S.

The San Francisco Bay Area yesterday became the first region in California to pass regulations governing development in areas prone to sea-level rise.

The U.S.

The U.S.

According to the Stockholm International Peace Research Institute (SIPRI), worldwide military expenditures have been growing annually for the past 15 years, and between 15 and 20 major armed conflicts--yes, wars--are in progress as you read this. All told, upward of 175 million people died in war-related violence during the 20th century, plus another eight million because of conflicts among individuals. Even so, according to a weighty new book, The Better Angels of Our Nature: Why Violence Has Declined (Viking Adult, 2011), by Harvard University psychologist Steven Pinker , the "better angels" of human nature have actually brought about a dramatic reduction in violence during the past few millennia.

According to the Stockholm International Peace Research Institute (SIPRI), worldwide military expenditures have been growing annually for the past 15 years, and between 15 and 20 major armed conflicts--yes, wars--are in progress as you read this. All told, upward of 175 million people died in war-related violence during the 20th century, plus another eight million because of conflicts among individuals. Even so, according to a weighty new book, The Better Angels of Our Nature: Why Violence Has Declined (Viking Adult, 2011), by Harvard University psychologist Steven Pinker , the "better angels" of human nature have actually brought about a dramatic reduction in violence during the past few millennia.

The kiddo is asleep for the night.

The kiddo is asleep for the night. My husband and I sit on kitchen countertops, facing each other

Dear EarthTalk : I’m interested in getting a new tattoo, but recently found out that red tattoo ink contains mercury. Is this true of other tattoo inks as well? Are there any ecofriendly alternatives?