The author has come to agree that food shortages could ultimately lead to the collapse of world civilization.

Our continuing failure to deal with the environmental declines that are undermining the world food economy forces me to conclude that such a collapse is possible.

Now a third and far more significant motivation presents itself: meeting these goals may be necessary to prevent the collapse of our civilization.

You may have heard some of the fashion industry horror stories: models eating tissues or cotton balls to hold off hunger, and models collapsing from hunger-induced heart attacks just seconds after they step off the runway.

In Venezuela, collapsing oil prices have sent its economy into free-fall.

A 16th century castle in Scotland is close to collapsing after lumps of soil were washed away by floods, threatening its foundations.

The value of listed shares in American firms collapsed by 57% from its peak in October 2007 to a low in March this year, though it has since bounced back somewhat.

When the bubble burst, demand collapsed

Rescue crews pulled a man to safety after a collapse at a construction site in Brooklyn on Tuesday.

The immediate cause for the collapse has been Britain's slide toward recession, which has cut into consumer spending.

Then, abruptly, the cod population collapsed.

After the failure of Lehman Brothers, many of the world’s largest banks feared the worst as the collapse of the housing bubble exposed investments in risky loans.

Predictions of the collapse of the tropical rain forests have been around for years.

If the collapse of the rain forests speeds up dramatically, it could eventually release

In the second paragraph, the author challenges the view that the collapse of rain forests is caused by direct human interference.

the collapse of rain forests is caused by direct human interference

A prime example Schweitzer and his colleagues cite is the 2004 collapse of energy-trading giant Enron, where managers used financial incentives to motivate salesmen to meet specific revenue goals.

Today, the European Union is creating a $580 billion fund to ward off sovereign collapse

What stopped the American economy from collapsing in 2007?

It collapsed at least once in the past 1.3 million years.

Now, new evidence reveals that all or most of the Antarctic ice sheet collapsed at least once during the past