OLIVELLA, Spain: As flames and smoke from burning bushes billowed towards them, Catalan firefighters calmly controlled the progress of a planned fire on a forested hillside – an exercise aimed at reducing the danger of blazes breaking out later in the summer heat.
Prescribed forest burns like this, which thin out flammable undergrowth, are a well-known way of lowering wildfire risks, which are rising as the Earth's climate heats up.
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