Research from MIRAGE (Megacities Impacts on Regional and Global Environments), a field campaign held in Mexico City in 2006, is coming to fruition as scientists begin to publish their findings. A new paper details the ozone “weekend effect” in Mexico City and its implications for local air pollution.

Plants in a forest respond to stress by producing significant amounts of a chemical form of aspirin, scientists have discovered.

This year is proving unusually active for Atlantic storms. The hurricane season is only at its midpoint, but already there have been 10 named storms—which is the average number for an entire year.

Maura Hagan, a senior scientist at the National Center for Atmospheric Research, has been named NCAR deputy director.

Eight leading professional organizations in the field of weather and climate today called on the next administration and Congress to better protect the United States from severe weather and climate change.