Some scientistsmaintain that the changes we are seeing fall within the range of random (無規律的) variation—some years are cold, others warm, and we have just had an unremarkable string of warm yearsrecently—but that is becoming an increasingly rare interpretation in the face of continued and increasing warm conditions.

E-books now account for 14 percent of all book sales in the country and are increasing far faster than overall book sales

In the US, for example, the popularity of computer activities is increasing.

In poor societies, people have children to improve their economic well-being by increasing the number of family workers and providing supports for parents in their old age.

Average family expenditure is increasing

During the 1980s he noticed an increasing number of long poems among the submissions, with some running to 70 or 80 pages.