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Briefing note 14: The latest global climate models present challenges for generating climate projections

June 23, 2021 10:41 am Published by Comments Off on Briefing note 14: The latest global climate models present challenges for generating climate projections

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.

Briefing note 13: How might Australia contribute to a next-generation global climate modelling facility?

May 19, 2021 11:57 am Published by Comments Off on Briefing note 13: How might Australia contribute to a next-generation global climate modelling facility?

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.

Recent El Niño behaviour is unprecedented in the last 400 years

June 5, 2019 3:47 pm Published by Comments Off on Recent El Niño behaviour is unprecedented in the last 400 years

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.

Future weather and climate extreme events

February 13, 2019 3:40 pm Published by Comments Off on Future weather and climate extreme events

Weather and climate extremes occur on a wide range of time and space scales. Weather extremes occur on shorter timescales and are regionally or locally specific while climate extremes tend to be on longer timescales and can impact a region through to the whole globe. This note provides a statement on what we know about how weather and climate extremes might change in the future.

Briefing note 003: Why are we uncertain about how extremely wet conditions will change in Australia in the future?

February 11, 2019 4:08 pm Published by Comments Off on Briefing note 003: Why are we uncertain about how extremely wet conditions will change in Australia in the future?

Computer models used to simulate global climate agree the climate will warm in response to increasing atmospheric greenhouse gases. However, a recent paper by Bador et al. (2018)1 includes results that highlight our uncertainty about exactly how extremely wet conditions will change in Australia. Further development of Australia’s national climate model, ACCESS, may help reduce this uncertainty.

Briefing note 001: What is the chance of global warming exceeding 1.5°C in the next 5 years?

October 23, 2018 2:28 pm Published by Comments Off on Briefing note 001: What is the chance of global warming exceeding 1.5°C in the next 5 years?

An international group of scientists has now forecast the likelihood global warming will exceed 1.5C over the next 5 years. This is one of the thresholds of the UNFCCC’s Paris Agreement, which aims “to strengthen the global response to the threat of climate change by keeping a global temperature rise this century well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5°C”.