"What part of "no" does TransCanada not understand?" she asked.
The Center for Biological Diversity, another environmental group, said the pipeline would still travel through wetlands and habitat for imperiled species such as the whooping crane, piping plover and a rare minnow known as the Arkansas River shiner.
"This isn't the time to be cutting corners on protecting our wildlife and environment," said Noah Greenwald, director of the group's endangered species program. "The Obama administration should be willing to take a hard look at this project and make sure it follows laws that protect clean water, wetlands and endangered species."
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