guy hedger— final last august. 0k, thank you. guy hedger co — final last august. 0k, thank you. guy hedger co in _ final last august. 0k, thank you. guy hedger co in madrid. - the biggest challenge facing our railways, is climate change. so says network rail, which owns and manages the country's tracks and major stations. in its new five year plan, it says it will spend £3 billion to try to deal with effects of extreme weather, like heavy rain causing landslips, shutting lines. katy austin has that story. flooding, heat waves, landslips. they can all be the result of extreme weather, which is becoming more common. that can spell major disruption with damaged equipment and closed lines leaving passengers facing delays and cancellations. network rail is funded by government grants, charges to train companies and commercial sources like property. it expects to have just over £45 billion to spend over the coming five years. but it thinks the impact of recent inflation will mean the money doesn't go as far and will in real terms be less than the previous five year period. and it's