Impacts in Australia and New Zealand
Australia and New Zealand, here also refer to their outlying tropical, mid-latitude and sub-Antarctic islands and the waters of their Exclusive Economic Zones. This region has been experiencing pronounced impacts of climate change. For example
- Since 1950 there has been a 0.3â€“0.7 Â°C warming in the region, with more heat-waves, and fewer frosts
- More rain in north-western Australia and south-western New Zealand
- Less rain in southern and eastern Australia and north-eastern New Zealand
- Increase in the intensity of Australian droughts
- A rise in sea level of 70 mm
This region is experiencing the impacts of climate change in the form of water supply and agriculture, changed natural ecosystems, reduced seasonal snow cover, and glacier shrinkage.
- Heat waves and fires, floods, landslides, droughts and storm surges are very likely to become more frequent and intense.
- Snow and frost are very likely to become less frequent.
- Large areas of mainland Australia and eastern New Zealand are likely to have less soil moisture, although western New Zealand is likely to receive more rain.
- Production from agriculture and forestry is projected to decline by 2030, over much of southern and eastern Australia, and over parts of eastern New Zealand, due to increased drought and fire.
- Significant loss of biodiversity is projected to occur by 2020 in some ecologically rich sites, including the Great Barrier Reef and the Queensland Wet Tropics.
- Water scarcity problems are very likely to intensify by 2030 in Southern and Eastern Australia, and in Northland and some eastern regions of New Zealand.