Some plants' pores can tighten to save water during conditions of high carbon dioxide.

VOA: special.2010.01.26

High levels of domoic acid in the sardines may have worsened the effects of oxygen loss in the water as the fish crowded into a limited space.

VOA: special.2011.03.15

"The flame from the jug of water was this high," "and that's what my kids and our family have been drinking."

VOA: standard.2010.01.02

Bobo Simbo stands thigh-high in a pool of orange water, sifting the mud for traces of gold dust.

VOA: standard.2010.04.22

He said the water was as high as four meters. Indonesian authorities say torrential rains were too much for the Dutch colonial era dam.

VOA: standard.2009.03.27

In a two-sentence letter Monday, North Korea said it had ordered the release on an "emergency" basis because water levels behind the dam had risen too high.

VOA: standard.2009.09.09