Another legal challenge will be launched today at the High Court against Lydd Airport's expansion.
Campaigners are opposing the plans and say that it is too close to Dungeness power station.
It also comes two days after the RSPB started their separate legal challenge against the plans, as their nature reserve could be disrupted.
The airport is also said to be under one of the largest migratory bird routes in the South.
It was given permission last year for a new terminal building which would be capable of handling up to 500,000 people and an extended runway.
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