Online training has increased the knowledge of health care workers about effective prevention of Ebola up to 19 percent and reduced critical errors to 2.3 percent in a small cohort. These findings suggest that the program could improve protection of health care workers from Ebola and, because it will be easily accessible via the Internet, could be especially useful in low-resource settings.

The Greenland ice sheet melted a little more easily in the past than it does today because of geological changes, and most of Greenland’s ice can be saved from melting if warming is controlled, say researchers.

In an ongoing study exploring walking for health across the adult lifespan, researchers found that walking cadence is a reliable measure of exercise intensity and set simple steps-per-minute guidelines for moderate and vigorous intensity.