Climate sensitivity describes how sensitive the Earth’s temperature is to a doubling of the amount of carbon dioxide in the atmosphere. One measure of climate sensitivity for projections of future climate is the Equilibrium Climate Sensitivity (ECS). ECS is the increase in the global average temperature between the pre-industrial era and a future doubled carbon dioxide climate once equilibrium of the climate has been reached.
The Royal Society has called for an international next-generation climate modelling centre (pdf), based on new cutting-edge high-performance computing and data services to support efforts toward net-zero emissions and to enable effective climate adaptation.
A landmark new international review of climate sensitivity led by ARC Centre of Excellence for Climate Extremes researcher Prof Steven Sherwood has reduced the uncertainty in Equilibrium Climate Sensitivity. Estimates of likely values now vary by less than a factor of two. The new assessment concludes that the climate is more sensitive to atmospheric carbon dioxide than some previous estimates.
Research on the Antarctic stratospheric polar vortex is important for Australia’s seasonal forecastsApril 7, 2020 2:51 pm Comments Off on Research on the Antarctic stratospheric polar vortex is important for Australia’s seasonal forecasts
Research has established a link between Antarctic stratospheric winds and an increased risk of weather conducive to bushfires from late spring to early summer. Further research on the relationship between winds and ozone in the Antarctic stratosphere could improve seasonal forecasts for Australia.
Research on heatwaves and droughts by the ARC Centre of Excellence for Climate Extremes supports a major international report on Climate Change and LandDecember 11, 2019 11:11 am Comments Off on Research on heatwaves and droughts by the ARC Centre of Excellence for Climate Extremes supports a major international report on Climate Change and Land
This research brief examines how research from the ARC Centre of Excellence for Climate Extremes informed the IPCC Special Report on Climate Change and Land.
In an hour-long talk to a business forum, Andy Pitman said: “there is no link between climate change and drought”. Given the audience were not climate scientists, or interested in the physics of the climate, this statement was one word too brief. Andy fully admits he should have said: “there is no direct link between climate change and drought”.
The ARC Centre of Excellence for Climate Extremes has contributed to a new scientific study that reveals that extremely hot and cold temperatures, drought and heavy rainfall strongly affect the year-to-year variation in the total global yield of four important crops.
In a world first, CLEX researchers have produced a 400-year-long record of El Nino activity. This gives us an entirely new insight into the behaviour of these high impact events and reveals unprecedented changes over the past 30 years.
Large areas of northern Queensland experienced extreme rainfall and severe flooding in late January and February 2019. This briefing note examines the impacts and some of the likely causes of the event.
Marine heatwaves are becoming longer and more frequent. A global assessment of marine heatwaves has concluded that they have “the capacity to restructure entire ecosystems and disrupt the provision of ecological goods and services in the coming decades".