activity and so i think to understand what is happening, you really have to see it within that context. in the next few days tens of thousands of delegates, including world leaders, will arrive in glasgow for cop26, the un climate change conference. countries will be asked to set out their plans for cutting emissions and rising global temperatures. the uk government's chief scientific adviser, sir patrick vallance, says it's vital that we take action now to limit global temperature rises to 1.5 degrees. absolutely make sure that the technologies we have today and the natural solutions we have today are implemented as fast as possible. that is critical. and there is a way to do that and there is a lot of r&d to do that and there is a lot of r&d to do that and there is a lot of r&d to do that. second thing we need to do is invest in the technologies for the future that will continue that make certain parts of that easier.