live now to dr douglas kelley — from the uk centre for ecology and hydrology — and who was the lead analystast year, predicting a global increase in wildfire activity. welcome to the programme. we will talk about hawaii are specifically in a moment but if we could talk about that report first of all, you talked about this huge increase in the number of extreme fires. some of the number of extreme fires. some of the figures, up 30% by 2050 and then by the end of the century up 50%, talk us through what it is down to. we talk about climate change a lot but it isn'tjust that, is it? climate change does play a large role in that and some of the big heat we have had recently wouldn't have been possible without climate change and these are the things that dry out the conditions that promote wildfires and make them more intense but loud use plays a role as well, particularly in places where you have natural vegetation which might hold in more water which creates dumb and prevents wild fires spreading. when you start degrading them, chopping down forests, deforestation, that will also promote wildf