130 community groups will attend a summit in Aylesbury later on the government's plans to build a high speed railway line through the Thames Valley.
15 local authorities from across the South have launched a legal challenge to plans to build the £32 million pound line from London to Birmingham.
The government believes that HS2 is necessary to improve the UK's infrastructure and the economic prospects of the North of England.
The Lord Lieutenant of Buckinghamshire will chair the summit which will focus on the environmental impact of the project.
Alison Munro the CEO of HS2 Ltd is expected to attend.
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The icy conditions has put a strain on many services in the South, especially those that help the elderly.
School children in Hampshire are performing the story of Mary and Joseph using songs by Take That.