the host prime minister boris johnson has been gloomily talking about the likelihood of failure and what the consequences of that would be. it's very different to the situation in 2015, the paris conference, the agreement that came from that. it was a break through success because it was a big picture feel good moment when the world committed to doing what the science says is necessary. that is limiting global average temperature increase to 1.5 degrees celsius. this time in glasgow it's going to be harder because this is when countries are supposed to put on the table the details, the plans, precisely how they're going to work towards transitioning into a low carbon future where they help achieve and they do achieve that goal. so that's why this conference will be pushing for big ambition. but at the moment, you know, the details on the table simply do not add up. they are completely insufficient in terms of achieving that 1.5 degree target. so pushing for big concrete measures like setting a date to stop burning coal for