Hundreds of firefighters battled Thursday to contain new flare-ups in wildfire-ravaged areas of Greece, where summer infernos have caused what the prime minister described as the country's greatest ecological disaster in decades.<br />'' <br />'' However, rain overnight in some areas and falling temperatures appeared to have eased the situation after two weeks of devastating blazes, and Prime Minister Kyriakos Mitsotakis said that, they can be more optimistic today than previous days.<br />'' <br />'' Greece's most severe heatwave in decades has fanned blazes that have destroyed more than One Lakh (100,000) hectares of forests and farmland, the country's worst wildfire damage since 2007, the European Forest Fire Information System said today.<br />'' <br />'' The fires have left three dead, hundreds homeless, forced thousands to flee, and caused economic and environmental devastation.<br />'' <br />'' Greece is just one of a number of countries in the Mediterranean region that have been hit by a savage fire season which authorities have blamed on climate change.<br />''  <br />