Context: In the UK the Royal Society for the Prevention of Accidents supports a proposal to observe SDST's additional hour year-round, but is opposed in some industries, such as postal workers and farmers, and particularly by those living in the northern regions of the UK.

Question: What was the name of the organization that supported adding an additional hour to their clocks all year?
Answer: the Royal Society for the Prevention of Accidents

Question: Joining farmers, what other kind of workers opposed SDST?
Answer: postal workers

Question: What regions of the United Kingdom were generally against SDST?
Answer: northern regions