average temperature in the capital berlin and the surrounding region has risen by 1.3 degrees celsius that's another reason why groundwater levels are falling. in recent years we've normally see a level of 50 centimeters in may. so it would reach up to hit. just a few years ago water still flowed in this ditch now it's dry this area has countless touches like these with sluices that help drain the land after frequent heavy rains these days there's hardly any rain at all. this doesn't look good. for the rangers and local farmers are looking for a solution they're planning to turn the drainage ditch into an irrigation ditch the idea is being tested 20 kilometers away. this nature reserve has 7 interconnected bodies of water the whole foods a lake is right in the middle. it's where the brandenburg ranger association has