Hawaii's new governor supports a visitor-impact fee, and supporters say they're more organized than ever. But it will be up to state legislators to decide.

While deep-sea mining may pose less of an environmental threat than its terrestrial counterpart, much is unknown about the ecosystem.

The relocation of Tristram's storm petrels from northeastern Hawaii's Tern Island, which is just 6 feet above sea level, could help save the species.

The regional council wants to allow fishing in protected waters via "customary exchange," drawing the ire of Papahanaumokuakea's Hawaiian stewards.

Supply chain challenges are easing, allowing Hawaii utilities to step up efforts to go green by 2045.

The plight of some 50 banyan trees near downtown Hilo puts a spotlight on Banyan Drive's deeper, longstanding troubles.

The solar-charged hydro power concept would be the first of its kind in the world.

From public schools on the Westside to private schools in Honolulu, teachers are finding creative ways to educate — and empower — students facing the effects of a warming planet.

Many families can't afford the conversion costs, and coming up with the funds to rid the state of all those cesspools will be daunting.