State of the Climate 2012 from CSIRO and the Bureau of Meteorology provides an interesting snapshot on their view of the current status and worth reading.
“…..the long-term warming trend has not changed, with each decade
having been warmer than the previous decade since the 1950s. The warming
trends observed around Australia are consistent with global-scale
warming that has been measured during recent decades, despite 2010 and
2011 being the coolest years recorded in Australia since 2001.
Global-average surface temperatures were the warmest on record in 2010
(slightly higher than 2005 and 1998). 2011 was the world’s 11th warmest
year and the warmest year on record during a La Niña event. The world’s
13 warmest years on record have all occurred in the past 15 years.
There has been a general trend towards increased spring and summer
monsoonal rainfall across Australia’s north during recent decades, and
decreased late autumn and winter rainfall across southern Australia. The
summary shows that the very strong La Niña event in 2010 followed by
another in 2011 brought the highest two-year Australian-average rainfall
total on record.
State of the Climate 2012 also highlights the increase in
global sea level and notes sea-level rise around Australia since 1993 is
greater than, or equal to, the global average. Our observations
that sea-surface temperatures around Australia have increased
faster than the global average. The concentrations of long-lived
greenhouse gases in the atmosphere reached a new high in 2011. Annual
growth in global fossil-fuel CO2 emissions between 2009 and 2010 was 5.9
per cent, reversing a small decline of 1.2 per cent recorded between
2008 and 2009 during the global financial crisis”.