Flooding and landslides in East Africa have killed dozens of people and forced hundreds of thousands from their homes. Meanwhile, thousands of miles away in Australia, a period of hot, dry weather has led to a spate of bushfires.
Both weather events have been linked to higher-than-usual temperature differences between the two sides of the Indian Ocean - something meteorologists refer to as the Indian Ocean Dipole.
The dipole is a climate phenomenon similar to El Niño
The Indian Ocean Dipole - often called the "Indian Niño" because of its similarity to its Pacific equivalent - refers to the difference in sea-surface temperatures in opposite parts of the Indian Ocean.
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