in the last two days. switzerland is holding a referendum on measures to make the country carbon neutral by 2040. money will be invested to help businesses and homes switch to renewables. around 4,000 people opposing a new high speed train line between italy and france have clashed with french police. protesters say the 57 kilometre project will disrupt the surrounding alpine environment. 0pponents argue it could ease the amount of lorries on the roads. to spain now. we ve been reporting on the impact of the ongoing drought in what s been the driest spring there in decades. 0ne place that s seen a huge change is the famous fuente de piedra wetlands. large colonies of flamingos which are dependent on its water supplies, migrate there once a year. but this year is much quieter than usual as the nature reserve has struggled through the dry weather. jack surfleet has the story.