Landmarks go dark for 'Earth Hour'

Landmarks go dark for 'Earth Hour' The HillLights Around the World Go Dark for Earth Hour TIMELights go dark for Earth Hour to focus on climate change ABC NewsFull coverage source: http://thehill.com/policy/energy-environment/380147-landmarks-go-dark-for-earth-hour #Headlines by:

Original Post: http://thehill.com/policy/energy-environment/380147-landmarks-go-dark-for-earth-hour