low water in the riverbed of the pinios near the mountains of meteora, one of the longest rivers in greece, dried after heat and

river pinios dry riverbed greece meteora mountains heat drought climate warming global low water shortage environment nature landscape tree bushes herbs pebbles stone blue sky sunny meadow effect agriculture drink groundwater weather malakasiotikos kalambaka thessalnia scenic environmental protection ecology valley plain day copy space outdoors nobody scenery europe summer travel near one longest rivers dried after potential