NZ is again being soaked this summer – record ocean heat helps explain it / Kevin Trenberth.
"This week, fresh downpours on already saturated ground have again triggered flood warnings and road closures across the upper North Island. These are individual weather events, but they are unfolding against unusually warm seas that load the atmosphere with extra moisture and energy.
Understanding ocean heat – and how it shapes rainfall, storms and marine heatwaves – is central to explaining what we experience on land."


