Climate change is real.

26 Mar 2010 0

Australia's hot hot heat.

Australia's hot hot heat.

The CSIRO and the Australian Bureau of Meteorology released a brief snapshot of the state of Australia’s climate two weeks back. For example the map below shows the increase in mean temperature per decade from 1960 to 2009:

The snapshot provides observations and analysis of Australia’s climate and the factors that influence it. Two organisations, CSIRO and the Australian Bureau of Meteorology have combined to present this current picture of Australia’s climate.
The Bureau of Meteorology has been observing and reporting on weather in Australia for over 100 years, and CSIRO has been conducting atmospheric and marine research for over 60 years. The snapshot is sourced from peer reviewed data on temperature, rainfall, sea level, ocean acidification, and carbon dioxide and methane levels in the atmosphere.

Climate change is real
The joint BOM and CSIRO observations clearly demonstrate that climate change is real. CSIRO and the Bureau of Meteorology will continue to provide observations and research so that Australia’s responses are underpinned by science of the highest quality.

It has become hotter everywhere, in some regions by as much a 0.4C per decade.

This image shows the change in rainfall in mm per decade over the same period:

Also in the report graphs tell us that in the 1960s record hot days were coming at 10 per annum. This had risen to over 20 by 2000 to 2009.

For cold days the pattern was the reverse. Over 20 records per annum in the 1960s and down to 10 this century. In both cases there was a clear decade by decade progression.

The rate of sea level rise had increased over the 20th century, markedly more in the north and west.

Rapidly rising sea levels from 1993 to 2009, with levels around Australia rising, between 1.5 and 3mm per year in Australia’s south and east and between 7 and 10mm in the country’s north.

Sea surface temperatures have risen about 0.4ºC in the past 50 years.

In spite of evidence like this the debate in much of the Australian media at present seems to centre on the fact that post Copenhagen the climate debate had been “rekindled”. I was blown away by the number of sceptics in the surfing community who responded to my piece on coastalwatch - Bells and Bondi are Vulnerable a fortnight or so back.

Thankfully the apolitical science organisations weighed into the debate last week because they believe Australians are not being told the correct information about temperatures, rainfall, ocean levels and changes to atmospheric conditions.

CSIRO chief executive Dr Megan Clark said both organisations felt it was time "to give Australians the facts and information they are looking for and to do so in a way that is very transparent and available".

"We are seeing a real thirst for knowledge from many Australians and we are responding to that huge public demand. There is a lot of noise out there and a lot of reference to other countries and people want to know what's happening in this country."

Dr Clark said the CSIRO had been observing the impacts of human-induced climate change for many years and had moved on from debate about it happening to planning for the changes to come.

To read more on the report go to http://www.csiro.au/resources/State-of-the-Climate.html


Earth Hour.

Last year hundreds of millions of people took part, with more than 4000 cities in 88 countries switching off. This year a record 120 countries are participating.

In the post Copenhagen climate it is encouraging practical symbolism.

Let’s support it.

For more info go to www.earthhour.org.au

- Ben Horvath. (Coastalwatch Editor.)

Tags: climate , sustainability (create Alert from these tags)

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