Climate Science

Get the facts from climate  experts. Here are some climate
related reports from reliable sources.

State of the Climate 2018 Report      State of the Climate 2018 Report: Australia
State of the Climate 2019      Climate Change and Health
Climate Change in Australia      Bushfires

State of the Climate

The Bureau of Meteorology and CSIRO State of the Climate 2018 report.

The Bureau of Meteorology and CSIRO play an important role in monitoring, archiving, analysing, interpreting and communicating Australia’s observed and future weather and climate.

Some points from the report:

Australia

  • Australia’s climate has warmed by just over 1 °C since 1910, leading to an increase in the frequency of extreme heat events.
  • Oceans around Australia have warmed by around 1 °C since 1910, contributing to longer and more frequent marine heatwaves.
  • Sea levels are rising around Australia, increasing the risk of inundation.
  • The oceans around Australia are acidifying (the pH is decreasing).
  • April to October rainfall has decreased in the southwest of Australia. Across the same region May–July rainfall has seen the largest decrease, by around 20 per cent since 1970.
  • There has been a decline of around 11 per cent in April–October rainfall in the southeast of Australia since the late 1990s.
  • Rainfall has increased across parts of northern Australia since the 1970s.
  • Streamflow has decreased across southern Australia.
  • Streamflow has increased in northern Australia where rainfall has increased.
  • There has been a long-term increase in extreme fire weather, and in the length of the fire season, across large parts of Australia.
  • There has been a long-term increase in extreme fire weather, and in the length of the fire season, across large parts of Australia.

Australia is projected to experience:

  • Further increases in sea and air temperatures, with more hot days and marine heatwaves, and fewer cool extremes.
  • Further sea level rise and ocean acidification.
  • Decreases in rainfall across southern Australia with more time in drought, but an increase in intense heavy rainfall throughout Australia.

Global expectations:

  • Concentrations of all the major long-lived greenhouse gases in the atmosphere continue to increase, with carbon dioxide (CO2) concentrations rising above 400 ppm since 2016 and the CO2equivalent (CO2-e) of all gases reaching 500 ppm for the first time in at least 800,000 years.
  • Emissions from fossil fuels continue to increase and are the main contributor to the observed growth in atmospheric CO2.
  • The world’s oceans, especially in the southern hemisphere, are taking up more than 90 per cent of the extra energy stored by the planet as a result of enhanced greenhouse gas concentrations.
  • Global sea level has risen by over 20 cm since 1880, and the rate has been accelerating in recent decades.
  • Globally averaged air temperature has warmed by over 1 °C since records began in 1850, and each of the last four decades has been warmer than the previous one.

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State of the Climate 2019

State of the Climate, 2019 presentation by Dr Karl Braganza, Bureau of Meteorology, delivered at City of Yarra Climate Emergency Forum, 4 April 2019

Climate Change and Health

Health Implications of Climate Change presentation by Fiona Armstrong, Climate and Health Alliance, delivered at City of Yarra Climate Emergency Forum, 4 April 2019

Climate Change in Australia

Climate information from the Federal government’s website.

This includes projections, impacts and adaptations, and historic climate change.

Climate Change in Australia

Bushfires

Bushfires are becoming more frequent and the bushfire season is coming earlier and lasting longer. Find news and reports on the links between bushfires and climate change as people in Australia and around the world are affected  in this Climate Council report.

Bushfires: Australia Unprepared for Worsening Extremes

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