Military drivers will be trained up as a precaution, after days of long queues and pump closures.
The 28-year-old primary school teacher was found dead in a south-east London park.
Labour conference vote comes after resignation of frontbencher Andy McDonald over Starmer’s pay policy.
Scientists fear plastic pollution will be overlooked as politicians focus on climate change policy.
However, ministers have not halted the 1m social distancing rule for hospitality venues.