Global warming is real and will continue, and there's strong evidence that people are to blame, an international panel of scientists has concluded. (p. 83)

The drug commonly used to slow bleeding during heart surgery increases a patient's risk of dying during the next 5 years. (p. 83)

Evidence from ancient dunes points to three periods of prolonged drought in the U.S. Great Plains, but finding their causes may be more complex than previously supposed. (p. 84)

A controversial trial of a chemically modified fat called an interesterified fat suggests that it is more harmful than is a trans fat–rich, partially hydrogenated vegetable oil. (p. 84)

Transferring a lost limb's nerves to other areas of the body might one day permit an amputee to feel the heat of a coffee cup with an artificial hand. (p. 85)

A national telephone survey indicates that one in five kids, ages 10 to 17, encountered instances of unwanted sexual solicitation or harassment online in the past year. (p. 85)

President Bush's proposed science budget for fiscal year 2008 closely reflects last year's recommended budget. (p. 86)

People may have leaned on ancient primate-brain capacities to begin making stone tools by 2.5 million years ago, a transition that possibly spurred the development of language and other higher mental faculties. (p. 88)

Vaccines currently in development could give people a novel way to kick their addictions and lose weight. (p. 90)

With the assist of gravitational boosts from the moon, twin spacecraft have completed a series of maneuvers that will enable them to take three-dimensional images of the sun. (p. 93)

Scientists have developed a cheap and easy way to create specific patterns of tiny wrinkles on the surface of a flexible and commonly used polymer, a technique that could be used to fabricate an assortment of microdevices. (p. 93)

Scientists have developed a way to use corn plants to monitor and map human-generated emissions of carbon dioxide. (p. 93)

Even in the womb, babies face a high risk of vitamin D deficiency. (p. 93)

A diverse group of creatures beneath an Antarctic ice shelf could give pause to researchers who infer past ecological conditions from fossils found in such sediments. (p. 94)

A tropical jumping spider needs ultraviolet light for courtship. (p. 94)

The scent of food may decrease the life-extending effects of a low-calorie diet. (p. 94)

A tiny fly that parasitizes cicadas could be the first insect species that's recognized to practice prenatal cannibalism. (p. 94)

(p. 95)