UN Secretary-General warns US against 'ethnic cleansing' in Gaza

1222.082 - 1241.768 Daisy Fancourt

It also meant that we had a really clean period when people were in lockdown, so not necessarily going to work, and there was a disruption of their usual patterns. And in fact, we were still seeing the same variation across the day, what we call a diurnal variation, even in those periods when people's lives were very disrupted and even when people weren't actually working in those periods.