“Big oil” has caused major climate change problems for Oahu and Mayor Kirk Caldwell wants the City Council to approve a lawsuit to cover the costs.

Residents adamantly oppose a housing development in Kaelepulu, an area that was once a fishery.

A landmark project on the UH Manoa campus shows the albizia tree’s potential as a building material — and the challenges of developing manufacturing in Hawaii.

Scientists are urgently searching for backup homes to protect the three remaining species in the Northwestern Hawaiian Islands.

NOAA displayed tons of plastic and other debris collected in the remote Northwest Hawaii Islands, where the trash threatens wildlife and coral.

A City Council bill to preserve ag land in Koolauloa could restrict a proposed 550-unit housing and commercial development.

Opponents say water drawn from streams by the Hawaii land company harm the environment.

But Secretary Ryan Zinke will recommend shrinking the boundaries of a “handful” of monuments and possibly allow drilling or mining in some.

The Hawaii Department of Land and Natural Resources commenced the first of three poison drops on Wednesday.

The U.S. Army, which says only about 1,200 elepaio birds remain on Oahu, proposes stepping up eradication efforts.