Officials say the new blaze was extinguished after about an hour. Amid a week of environmental mishaps, the Texas attorney general filed a lawsuit alleging violations of that state's clean air laws.
One social scientist says it's how people interpret these warnings that matters and that "we need to get out there and do a better job of understanding their perspective."
The casualties included many children, as a vessel carrying Nowruz holiday revelers capsized in the Tigris River. Authorities said the boat appeared not to have had life vests on board.
While many doubt the wisdom of rebuilding in a fire zone, the first building permits have been issued as the town of Paradise, Calif. begins to recover from the devastating Camp Fire of last November.
The Cuyahoga River flows through Cleveland. In the 1960s, the old industrial city was so polluted that the river repeatedly caught fire. Decades of environmental regulation has made a difference.
More than 100,000 people descended on Lake Elsinore, Calif., over the weekend for a chance to frolic among the flowers. City officials strained to keep up.
Vice President Pence will visit Nebraska on Tuesday to survey damage caused by Midwest floods that have killed at least four people and displaced hundreds.