Emerging trends are important - but more important is the fact that trends emerge and evolve over time.

It describes how trends emerge and evolve before they disappear.

The attempt should be made to think creatively about how the particular trend or issue could evolve.

As this trend evolved, so did improvements in glass manufacture, making it possible to attach storm windows together to enclose a patio space.

Because the world has become smaller and products are so easily obtained, trends evolve rapidly.

Further, The Economist reported that off-shoring trends are evolving for several other reasons:

This trend has been evolving like a force of nature.

On Moscow streets, trends and styles evolve with the same speed as elsewhere.

He said later that "a positive trend has evolved" toward freeing Western hostages.

While many decorating trends evolve slowly over long periods of time, high tech seemed to vanish nearly as quickly as it rose.