Thunderstorm stirs over a cityscape (IMAGE) DOE/Pacific Northwest National Laboratory Caption Intensified convection is just one way urban land and anthropogenically produced aerosols may shape hazardous weather. Longer-lasting rainfall and larger hail are other potential byproducts of the interactions between cityscapes and storms, according to new research from PNNL scientists. Credit (Photo by 12019 | Pixabay.com) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.