By 2050, temperatures may be 1.3°C warmer on average compared with the 20 years since 1998. There will also be fewer frost days and an increase in the number of days with a maximum temperature over 25°C.
Although we’re not expecting much change to rainfall on the plains, there could be a 5% increase in alpine rainfall and an increase of between 4-12% in extreme rainfall events.
Sea level could rise by up to 0.28 metres by 2050, resulting in the Te Waihora/Lake Ellesmere mouth needing to be opened more frequently and an increase in lake levels. Rising sea level and more severe weather events are likely to lead to more flooding around the coast, as well as more severe flooding inland.
Here are a few of the ways Selwyn is responding to climate change.