Germany's farmers expect a poor harvest this year due to a prolonged drought and an unusually long stretch of warm weather.

The grain harvest is expected to reach 45.2 million tons this year, a drop of almost 20% compared with the recent five-year average, according to Joachim Rukwied, the head of Germany's farmers association.

Mr Rukwied described conditions this year as "extreme", particularly in Germany's north-eastern breadbasket state of Brandenburg.

He said a very short spring and record temperatures in May meant many crops failed to develop properly, prompting farmers to start harvesting early this year.

Scientists say much of Europe can expect to see average temperatures rise and extreme weather events increase over the coming decades due to climate change.

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