The World Wildlife Fund (WWF) environmentalists around the world to turn off non-essential lights for one hour from 8.30 pm to 9.30 pm on 19 March 2016. Last years, 7,000 cities in 172 countries supported the initiative.
Ecology: What Can the Travel Industry Do to Fight Global Warming?
Environment and corporate social responsibility: a global campaign has been launched to help the travel industry fight global warming - what can hotels do?