An Indian couple performs marriage rituals during a mass marriage of Pipa Kshatriya Darji community members belonging to the Indian state of Rajasthan on the occasion of Basant Panchami, or spring festival, in Ahmadabad. Thousands of couples tie the knot on this day, considered auspicious in Gujarat.
Opponents say the environmental and social costs of flooding parts of the Amazon outweigh the energy benefits, but the $10 billion Belo Monte project and other Amazon dams hold the promise of clean energy.
On the eve of Earth Day, Brazil awarded a $10 billion contract for what will be the world's third-largest dam. Brazil says it will meet urgent energy needs, while critics say it will displace thousands of people and profoundly endanger wildlife.
Canadian Treasury Board President Stockwell Day is seen in a viewfinder as he speaks to journalists in the foyer of the House of Commons on Parliament Hill in Ottawa on Tuesday.