• What is air pollution?
  Air pollution occurs when gases such as carbon dioxide are emitted ...

• Will global warming affect any island nations?
  Coral islands are low-lying. If global warming melts the world's ice, ...

• What is coastal pollution?
  Coral reefs and mangrove swamps are breeding places for many fishes. ...

• Can the pollution of rivers harm people?
  When factories pump poisonous wastes into rivers, creatures living ...

• Can deserts be farmed?
  In Israel and other countries, barren deserts have been turned into ...

• What is soil erosion?
  Natural erosion, caused by running water, winds and other forces, is ...

• What is the Great Barrier Reef?
  The Great Barrier Reef lies off the northeast coast of Australia. It ...

• What is happening to the world’s rainforests?
  The rainforests in the tropics are being destroyed. These forests ...

• Where is the ‘Great Pebble’?
  The word Uluru is an Australian Aboriginal word meaning 'great ...

• What is the world’s largest island?
  Greenland covers about 2,175,000 sq km (840,000 sq miles). ...