When a city's population grows by 5% a year, it is difficult to keep up.

Thirst grows for living unplugged More people are taking breaks from the connected life amid the stillness and quiet of retreats like the Jesuit Center in Wernersville, Pennsylvania

The youngish-looking man takes his little boy to the hermitage frequently so that when he grows up he will know what is essential

As the minority population grows in the United States, low college graduation rates become a threat to national prosperity.

The result could be a group of young people that, like their boomer (二戰后生育高峰期出生的美國人) parents, grows up with a strong sense of purpose and sheds the image of apathy (冷漠) they've inherited from Generation X (60 .代后期和70 .代出生的美國人).

And as the distance between their breeding grounds and their food grows, entire colonies could be wiped out.

As a country's wealth grows, so do its greenhouse gas emissions.

Even when a tiny number grows by a large percentage terms, it is often still tiny.

For example, only one boy said he would like to be president when he grows up.

Participation grows through friends and networks and if "you realize that's how they're growing, you can start to take action" and bring in other students, he said.