no one here, no one to warn the citizens here where there are houses. and we were running, we were running. greece has fought more than 500 wildfires this month alone as the country also battles its most severe heat in decades. scientists say it's yet another reminder of the impact of man—made climate change. courtney bembridge, bbc news. a wildfire near the californian city of sacramento has exploded and grown by a factor of eight injust 2a hours. the caldorfire suddenly expanded on tuesday morning and within a day was consuming more than 53,000 acres. two people have been seriously injured and thousands of residents have been evacuated from the eldorado national forest. it's one of many fires currently raging across the western united states. when you think of knights in shining armour — you no doubt think of medieval europe. pitch battles involving broad—swords, chain—mail and lances.