Climate science summary of latest developments 2010

Climate Science Summary of Latest Developments A summary prepared by AGL – based upon IPCC and CSIRO research For further information: Tim Nelson Head of Economic Policy and Sustainability [email_address]

The Greenhouse Effect – A Detailed Understanding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Correlation between Carbon Dioxide and Temperature ,[object Object],[object Object]

What are the Greenhouse Gases? ,[object Object],[object Object],[object Object],Greenhouse Gas Global Warming Potential (Radiative Forcing Potential) Source of Greenhouse Gas Carbon Dioxide 1 Carbon cycle, fossil fuels Methane 23 Fossil fuels, waste Nitrous Oxide 296 Fertiliser, industrial Hydrofluorocarbons @ 100 to 12,000 Refrigeration, industrial Perflurocarbons @ 5,000 to 12,000 Aluminium production Sulphur hexafluoride 22,200 Dielectric fluid

Increasing Concentrations of Greenhouse Gases ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Most Recent Observations ,[object Object],[object Object]

Anthropogenic Changes to Radiative Forcing ,[object Object],[object Object],[object Object],Variable Current Radiative Forcing Other Information Carbon dioxide, methane and nitrous oxide + 2.30 W m -2 (+2.07 to +2.53) Rate of increase unprecedented in at least 10,000 years Aerosols - 0.5 W m -2 (-0.9 to –0.1) direct and –0.7 (-1.8 to –0.3) indirect Aerosols also influence cloud lifetime and precipitation Tropospheric ozone (i.e. nitrous oxide etc) +0.35 Wm -2 (+0.25 to +0.65) Halocarbons +0.34 Wm -2 (+0.31 to +0.37) Solar irradiance +0.12 Wm -2 (+0.06 to +0.30)

Observed Climate Changes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Observed Changes in Australia Trend in mean temperature 1960-2009 (ºC/decade) Source: BOM-CSIRO ,[object Object],[object Object]

Observed Changes in Australia Trend in annual rainfall 1960-2009 (mm per decade) Source: BOM-CSIRO ,[object Object],[object Object]

Link between Greenhouse Gases and Climate Change ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Forecast Temperature and Climate Changes ,[object Object],[object Object],[object Object],Case Temperature Change (at 2090-2099 relative to 1980-1999) Best Estimate Range Constant Year 2000 Concentrations of GHG 0.6 0.3-0.9 Scenario 1 1.8 1.1-2.9 Scenario 2 2.4 1.4-3.8 Scenario 3 2.4 1.4-3.8 Scenario 4 2.8 1.7-4.4 Scenario 5 3.4 2.0-5.4 Scenario 6 4.0 2.4-6.4

Impacts: Examples for Australia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Impacts: Examples for Australia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Climate science summary of latest developments 2010

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Climate science summary of latest developments 2010

Similar to Climate science summary of latest developments 2010 (20)

Recently uploaded

Recently uploaded (8)

Climate science summary of latest developments 2010