As temperatures rise, Sicily turns to exotic fruits

Avocados, mangos, bananas and passion fruit—a wealth of exotic produce is growing under the shadow of Sicily's Mount Etna, as the Italian island's farmers adapt to global warming.

Trees might be 'aware' of their size

Trees are known for their great, but not unlimited, trunk height and diameter. They have evolved to develop a heavy above-ground biomass, but this integral feature poses a challenge to the trunk's stability.

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