Hawaii

An atrophied muscle needs to be flexed more

Pacific islands note threat of sea level rise while setting toughest climate target of any US state

From Hawaii's Molokai to Samso, Denmark, islands are becoming a hotbed for experimentation with renewable energy, waste reduction and water conservation

Hydrogen fuel cells are making a come back in the renewable energy field - and in Hawaii, we'll soon see hydrogen fuel cells in cars, fleets and microgrids.