National research centers in the United States and United Kingdom are signing a memorandum of understanding today to collaborate more closely on atmospheric science and technology.

Student scientists from the United States and around the world are converging in South Africa this month in what is likely to be one of the largest-ever international gatherings of teenage researchers.

As Julien Wang wraps up work on her master's degree and interviews for a job focused on air pollution or energy policy, it looks like she's come a long way from the big, dirty city in northern China where she was born.

Julien Wang, Significant Opportunities in Atmospheric Research and Science (SOARS) • When it came time to choose a major, Wang was torn between the arts and her growing interest in the environment. Finally, she chose environmental engineering. One recent project: designing a green roof.

Ed Geary hasn't shied away from wearing multiple hats. A geologist by training, he combines science, education, and international collaboration in his role as director of a worldwide science education program.