hi, i'm levi and i'd like to know- how we'll know cop26 is successful? levi, you are not the only one asking that. yes, isabella, what is your yardstick for a good cop26? yes, for us at the wwf, we have two key tests. it is really important that we keep 1.5 degrees on the table. so, every government must use cop26 leadership to pull every lever at their disposal, to make sure the world gets on track and closes that gap, to limit global warming to 1.5 degrees. so, we are currently on a trajectory to 2.7 degrees. and we need to see countries put forward stronger plans to get on track. and the other main priority for us is to make sure nature is a climate hero. so it's really vital for us at the wwf, at cop, we see nature being recognised in an ally to fight against climate change. and failure to do so, we think, will undermine the ability to limit that global warming to 1.5 degrees. i hear that keep 1.5 alive is a phrase we might hear quite a bit.