Officials Discuss Swine Flu Vaccine

Though this plan is still in the works, health officials told lawmakers Wednesday it took only two weeks to identify the genetic characteristics of swine flu, which means developing a vaccine is definitely a plausible feat.



 Satellites Offer Insight into Air Pollution Levels

Sundar Christopher compares satellite data with ground measurements in well-studied areas. With these comparisons he can determine surface air quality using only satellite data. He examined 20 cities with populations greater than 10 million and discovered that in 15 of them, pollution levels were 5 to 10 times higher than the World Health Organization’s guidelines.