A number of Temporary Danger Areas (TDAs) are either planned or exist for trial or operational use of unmanned air systems. Although much of the UAS activity occurs near the surface, pilots are strongly encouraged to ensure that they carefully read NOTAMs to ensure they have the relevant detail. The most recent TDA we have been advised about includes segments of airspace around Snowden up to 7000′ alt, which will be subject to a TDA from 11th July.
Aeronautical Information Circulars (AICs) are an additional source of detail. AICs can be viewed on the AIS website here.