Related: World environment

1. More environment
   1. Fracking boom triggers water battle in North Dakota
   2. Buggy hordes of cicadas sighted in Virginia
   3. Melting glaciers contribute to rising ocean levels
   4. Food supply under assault as climate heats up
   5. Crocodile's suspicious death sparks $6,000 reward
2. More world news
   1. Egypt's 'rebels' gather millions of signatures
   2. Inquiry: 'No evidence' boy in photo was killed by IDF
   3. After Ahmadinejad, who will lead Iran?
   4. Car bomb explosions in Baghdad kill more than 60
   5. Heavy fighting reported in key Syrian town
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      Melting glaciers contribute to rising ocean levels