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

VOA: standard.2010.03.29

The study says mangrove trees provide more than one and a half billion dollars worth of services to ecological systems worldwide.

VOA: special.2010.04.20

He says the global economy must change to a sustainable system now before social issues and ecological degradation become overwhelming.

VOA: standard.2010.01.23

"Whether it's the fight against international terrorism, whether it's cooperation in space, exchanges in health and ecological sphere;

VOA: standard.2010.05.07

Well,we want to look to your societies, and we want to help Muslim-majority communities develop the capacity to meet economic,social, and ecological challenges through science,technology, and innovation."

VOA: standard.2009.11.03

When Bill McKibben wrote "The End of Nature" 20 years ago, he thought that if he simply pointed out ecological problems, people would do something about them.

VOA: standard.2010.04.21