Climate change: Europe had its hottest summer on record this year

Firefighters battle a wildfire near Avila, Spain, on August 16.

A helicopter drops water as a wildfire burns in the village of Navalmoral, Spain, on August 16.

A man works to douse a fire in Montalto, Italy, on August 12.

Forest fires rage on the Greek island of Euboea on August 11.

This aerial photo shows a wildfire-affected area in Mugla, Turkey, on August 11.

Remains of an 18th-century Orthodox church are seen on August 10, after a fire on the Greek island of Evia.

Local youths and volunteers gather in a field and wait to support firefighters during a wildfire on August 9, close to the village of Kamatriades on the Greek island of…