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Professor David Karoly -

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Prof. David Karoly: I love being a climate scientist. What I'm doing is setting up a climate change
research group. Most important to me is family but then the environment. To do something that I
think can benefit humankind.

As a kid I was an average, boring child. We lived mainly a city life living in the suburbs but any
chance I got I'd go away into the countryside. I think it was because I was much more interested in
the environment.

While I was at university I actually made a conscious decision to do work on meteorology, on
weather and climate because I thought this is something that is interesting to me, gets me
outdoors, and I can relate to the average person in the street.

I started here at the University of Melbourne four months ago having come back from Oklahoma. The
focus of my research will be climate change assessments and improving climate model projections.

The impacts are happening more dramatically and earlier than most scientists expected.

This is a map looking down on the North pole. And it shows here with this thin line the extent of
the arctic sea ice in a minimum in Sept. this white area is the previous minimum arctic sea ice set
in Sept of 2005. And this is Sept of this yr the arctic sea ice is dramatically reduced 25 % less
than the previous minimum. What that means is that global warming has led to much reduced sea ice
its much less than even the climate models are predicting.

We can see that now there is a navigable passage where ships can sail through the nth west passage
from the Atlantic through to the pacific ocean which has never been possible in the past.

There is no doubt in my mind that the climate change we've seen over the last 50 years is primarily
due to human activity.

It's remarkable to me that Australia has not signed the Kyoto Protocol. Mainly because Australia
has the highest per person emissions in the world.

It is critically important for the government to take leadership in setting emission reduction
targets, irrespective of which political party is in government.

It's not too late to do something now because we can still reduce the worst impacts of climate
change, but it is too late to slow down climate change for the next 30 years because for the next
30 years, the warming is committed.

What I'm trying to do as much as possible, is communicate the seriousness of this and the urgency.

The decisions we make now about emissions will determine the warming that our children and our
grandchildren will experience at the end of the 21st Century.

I've tried to work hard to reduce my Greenhouse Gas emissions personally, we have a hybrid car I
use public transport to come to work we use green power at home we recycle as much as possible.

But now, 90% of my Greenhouse Gas emissions are involved in international travel on aeroplanes to
go to climate change meetings. But I've been trying to change my lifestyle by downsizing. The place
we're getting is over here 2nd last building .

Susan: It was the Australian dream to have the quarter acre block and I think we have to revisit
that dream .

By downsizing we're keeping our footprint small.

We're not tied to the garden to maintenance we're not tied to travelling

I want Thomas to have the best life possible but I know that climate change will get worse, but how
bad it gets can be determined by our actions and the government's actions, now.