From Sydney's Opera House to New York's Empire State Building and Paris's Eiffel tower, landmarks worldwide dimmed their lights on Saturday for the 10th edition of the Earth Hour campaign against climate change.
Qatar General Electricity & Water (Kahramaa) and its national programme for conservation and energy efficiency, Tarsheed, is collaborating with Qatar Tourism Authority (QTA) and United Development Company (UDC) for its campaign “Gift Earth One Hour” to observe Earth Hour on Saturday from 8.30pm to 9
