A man gestures while delivering bricks o

BEIJING, CHINA: A man gestures while delivering bricks of coal through an old Beijing neighborhood, used for warmth and cooking, 18 April 2004. As the world's second source of energy after oil, coal is crucial to meeting the needs of developing countries such as China, the biggest consumer, at 1.25 billion tonnes in 2002, and India at 581 million. Global consumption for coal is expected to grow by 1.4 percent per year until 2030, with China accounting for half. AFP PHOTO/ Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)