Scientists say the system will help safeguard nature, but they want more transparency about the zones chosen for conservation China's government is the first to use satellites to monitor land set aside for conservation to ensure its protection from illegal development. Scientists hope that the move will safeguard ecologically important habitats and provide a model of remote-sensing use for conservation that other countries could follow. But they also have questions about how the nation has decided which areas to protect and where the boundaries, known as the ecological redlines, lie. “The decision makers have made a really bold step forward,” says Chi-Yeung Choi, an applied ecologist at Duke Kunshan University in Suzhou, China. He says that having a national system to protect ecolog...
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