Gov. Greg Abbott flew over parts of the Blanco River Monday, a day after storms triggered flooding. At least three people are dead in Texas and Louisiana, and a dozen missing.
A video from NASA shows how air pollution moves around the world. So what happens when emissions from Asia blow across the Pacific Ocean to North America?
A hot wind blows from the Sahara Desert across West Africa each winter. This year, the clouds of sand are so thick that flights are grounded, cocoa trees are suffering and everyone has a cough.
After the storm rakes its way across the South and Mid-Atlantic, it will likely take aim at New England, which has already experienced a record-setting winter.
In Boston, it added to the snow already on the ground and broke a record for snowiest seven-day period. The storm was the strongest Detroit had seen since 1974.