Dark-bellied brent geese are returning to their winter quarters on estuaries and adjacent pastures from their breeding grounds in arctic tundra.

And later, that one species was nothing: we needed to rescue ecosystems like the rainforest and arctic tundra.

The project was resurrected in 2004 with a new proposal to transport gas through the sensitive arctic tundra.

The habitat consists of arctic tundra and alpine and subalpine tundra.

They also inhabit arctic tundra and semidesert communities.