and with mark drakeford.ning that climate change and nutrient pollution are dimnishing oxygen levels in our oceans. that's the conclusion of the biggest study of its kind, undertaken by the group the international union for the conservation of nature. while nutrient run—off has been known for decades, researchers say that climate change is making the lack of oxygen worse and is having an impact on certain species of fish. minna epps is the director of the iucn's global marine and polar programe and earlier spoke to me from the climate summit in madrid. what we are seeing is a 2% decline in the global average. within that average you have lots of different regional differences and 2% might not seem like a lot but if you think about the terms of the climate change debate, we know that even 1 degree will have a huge impact. in the coastal areas, but we are now seeing it in the open sea. we are looking at the reporting of your work at around 700 sites have been identified as having low oxygen levels, up from only

there are if you wear labour and tories are head—to—head at the welsh labour leader mark drakeford hasn labour and the conservatives has narrow compared to re ce nt conservatives has narrow compared to recent elections. both the two main parties relying on their core messages in the last couple of days, the last few hours of only election campaign, boris johnson saying the last few hours of only election campaign, borisjohnson saying to get brexit done, labour trying to consolidate their support, a message to people who may be flirting with the idea of voting for plaid cymru or the liberal democrats. that you remain parties. saying to them, they cannot form a uk government. if you vote for those parties, you could be allowing borisjohnson into number ten. so, what are the chances of any party gaining a majority? jeremy vine has been looking at the numbers. let me show you first of all the result of the last general election — 326 seats needed for a majority in the house of commons, and the conservatives fell short with 318. labour quite a long way behind — here we go, 262 for them. and

jeremy corbyn was campaigning here, but the first minister, mark drakeford, said that he also bore someconservatives. they are absolutely delighted this evening. they put some of their success down to the boris effect, they said, but also they were being told on the doorstep that people didn't really understand what labour were saying about brexit, that their message simply wasn't clear enough. they say their challenge now for the conservatives is to hold onto those voters in future elections, and of course the next election that we have here in wales is in 2021, which is the welsh assembly elections, so will this result translate into more gains for the conservatives then? we will have to wait and see. indeed, sian, thank you very much. good to talk to you, sian lloyd in cardiff with some thoughts on the changing picture in wales overnight. it is just changing picture in wales overnight. it isju5t gone changing picture in wales overnight. it is just gone 20 to seven in the morning. we are going to have a quick word with ben wright who is outside conservative party headquarters in londo