and two: in ten days�* time world leaders will gather in glasgow for the cop26 conference, to talk about how to avoid that. here's our climate editorjustin rowlatt the leak consists of thousands of comments by governments and others to the scientists response will for a key un report. they were given to greenpeace uk which passed them the bbc. these un reports are pretty much the bible of climate science. they are used by governments to decide how to tackle climate change, and they will provide a crucial input to the negotiations in glasgow. let's look at what this leak reveals. starting with saudi arabia. it's the world's largest oil exporter. an adviser to the saudi oil ministry demands "phrases like �*the need for urgent and accelerated mitigation actions at all scales�* should be eliminated from the report". here's the bbc�*s sameer hashmi on that.