An energy company says it'll start test drilling for oil and gas at a site in Sussex this summer.
The firm called Cuadrilla plans to drill an exploration well near the village of Balcombe. But environmentalists say it could lead to "fracking", where underground rock is broken up.
The company says the process is safe, but others, such as Dr Mariann Lloyd-Smith of the National Toxics Network disagree.
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Fine this evening, then dry overnight with mist likely in places. Sunny spells tomorrow morning with hazy sunshine in the afternoon
A fine and sunny evening, then dry and clear overnight. A sunny start to Monday with hazy sunshine into the afternoon and feeling fresher
The grass pollen risk will rise to very high during warm, sunny weather. Weed pollen will also be airborne