March 23, 2013
![Indian police look on at India Gate monument, with lights switched off during an Earth Hour event in New Delhi.](https://gdb.voanews.com/EF802A3F-89B3-4D8B-9757-2BAD074DFF86_w1024_q10_s.jpg)
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Indian police look on at India Gate monument, with lights switched off during an Earth Hour event in New Delhi.
![U.S. President Barack Obama (C) stops to look at the Treasury while he receives a tour of the ancient historic and archaeological site of Petra, Jordan.](https://gdb.voanews.com/6775D7F9-BC48-45FA-997E-F04959D772F6_w1024_q10_s.jpg)
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U.S. President Barack Obama (C) stops to look at the Treasury while he receives a tour of the ancient historic and archaeological site of Petra, Jordan.
![Belarusian women in traditional clothing take part in a Slavic 'Spring welcome' festival in the village of Viazynka, about 40 kilometers of Minsk.](https://gdb.voanews.com/A4CF39C9-5135-41C5-B34F-A5662F9FCD4C_w1024_q10_s.jpg)
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Belarusian women in traditional clothing take part in a Slavic 'Spring welcome' festival in the village of Viazynka, about 40 kilometers of Minsk.