In the slanting, late-afternoon summer sun, the fields around the small Australian town of Ouyen – almost 450km north-west of Melbourne – turn the colour of honey. The edges shimmer with silver, that old cruel trick of feigning water where it hasn’t rained for weeks.
Summer is always hot out here in the sparse, flat Mallee, but this year is shaping up to be particularly harsh. Just two weeks ago, on Thursday 8 January, Ouyen got to 47.5C. On Monday it reached 44.3C.