These problems may appear and then disappear, sometimes resulting in long periods when there are no problems at all.

VOA: special.2009.01.06

In the United States, the icy masses in Glacier National Park in Montana may soon completely disappear because of climate change.

VOA: special.2009.04.22

As humans begin to disappear, the vampires must come up with a way to guarantee their future food supply.

VOA: special.2010.01.20

And once he said: "Four-fifths of our troubles in this life would disappear if we would only sit down and keep still."

VOA: special.2010.12.23

That's why I am paying attention more." Jobs have continued to disappear, though at slower rates.

VOA: special.2009.08.21

So,the two writers made a list of places that people should see before those places disappear.

VOA: special.2009.04.22

The findings predicted that most of the Arctic's summer ice could disappear in thirty years.

VOA: special.2009.05.05

I feel like you're going to disappear." Edward lives with a vampire family that has chosen to drink the blood of animals instead of humans.

VOA: special.2010.01.20

Justice Benaja Widdup watched the money disappear with mournful eyes.

VOA: special.2009.11.14

It can become concentrated in small areas and then disappear.

VOA: special.2009.12.30

That honor will never disappear while history books last.

VOA: special.2010.03.27

Some genes change or disappear over time.

VOA: special.2010.02.02

Changes that do not aid survival disappear.

VOA: special.2009.12.01

"And I don't think that's going to disappear by any finding of a limited review of a relatively-small number of ballots.

VOA: standard.2009.06.29

"It is clearly of grave concern to us when parliamentarians simply disappear from the face of the earth.

VOA: standard.2009.04.09

(SAYING) "If the mangroves disappear, fishing will be in crisis and the ecological balance will be disrupted."

VOA: standard.2010.03.29

She calls this situation intolerable especially as the economic and technical means to make hunger disappear exist.

VOA: standard.2009.10.14