Earth Hour 2017: When is it, what time, and what can you do to support it | Center for the Advanced Study of India (CASI)

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The Indian Express

Friday, March 24, 2017

http://indianexpress.com/article/technology/science/earth-hour-2017-when-is-it-w…

2017 marks the 10th annual Earth Hour - the world's biggest environment event…..