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By Chris Wickham LONDON (Reuters) - Scientists from 15 countries are calling for a better political response to the provision of water and energy to meet the challenge of feeding a world of 9 billion people within 30 years. The joint statement by some of the world's leading science academies was issued on Thursday ahead of the G8 summit in the United States.

SYDNEY (Reuters) - Australia will carry out a comprehensive assessment of development pressure on the Great Barrier Reef to help preserve the world's largest coral reef system, ministers said Saturday. The assessment will take into account how development along Australia's northeast coast is affecting the reef, Environment Minister Tony Burke said in a joint statement with the Queensland state government