Some 14,000 years ago, a warming trend apparently raised the sea level by 70 feet in just a few hundred years.
The trend raises the question whether managed care's best days are over.
For her, the trend might at least raise some important questions about how living units ought to be made, used and regulated.
But those trends have not necessarily raised sales by the 80 or so university presses in the United States.
Taken to an extreme, the trends in technology raise the question of whether the military will need boot-on-the-ground combat troops at all.
Nor would most deny that the trend raises larger social and ethical questions.
The trend raised new concerns about the city's ability to balance its budget before the fiscal year ends on June 30.
The trend has also raised concern among anti-smoking groups, who fear that the products may lead young people to the real thing.
Together, these trends raise concerns for some homeowners and home seekers.
The trend is raising fears on dependence, jobs and profits.