Ask me the question,
"Hey, Dr Karl,
what's the most important thing about telling a joke?"
What's the most important thing about-
-timing!
See, I said timing too soon.
(laughter)
Hi, my name's called Lachie.
Hi, Dr Lachie.
Hello. I'm Leon.
Dr Leon, good morning, I'm Dr Karl.
And what's your name?
Kaleel and Zahli
Dr Kaleel and?
Dr Zahli.
What!
You know how people have been littering?
Trash cans, soda cans, plastic cups and plastic bags?
They just think it's okay, when it's not.
We just put it in the bin
by ourselves.
And how old are you now?
Five.
Even though you're five years old
you've learned how to put rubbish in the bin.
Do you know there are some adults
who somehow have forgotten that rubbish goes in the bin
and that you shouldn't litter?
I know, it's hard to believe, isn't it?
Where does all of our rubbish go?
Well, the standard answer is away
but if you've got just one planet
that you're living on
there is no away.
So we put some of it in what's called landfill
where you dig a big hole in the ground
and basically it's going to be there for thousands of years.
Do you think climate change caused the bushfires?
Climate change was a very big part
of the bushfires, which in 2019-20
burnt one fifth of all the forest in Australia
including rainforest, which had never burned before.
The other part of it
was the loss of the Indigenous knowledge about bushfires.
That makes me sad.
Me too.
And everybody's sad because
the trees are dead, and the trees are ours,
the trees are Aboriginal family and ours.
The unlovely thing what to have
is we're hurting nature.
It is ridiculous because nature
is our home and we are part of nature
and yet we're damaging nature.
It's like setting fire to your own house.
Do you find that kind of crazy?
Why do people,
why are we doing that?
I don't know.
Neither do I.
Do you think this is a good thing
or a bad thing?
A very bad thing.
Or to use your words 'unlovely'.
All of the leftover cardboard, I get it,
and I make us some stuff out of it.
Ah! To be creative.
Well we recycle air, so I can guarantee,
that some of the atoms of oxygen
that are coming into my lungs right now,
millions of years ago,
came out of the lungs of a
dinosaur.
When the water rises
how many people have to leave their homes?
Most of the world's population
lives within 50 kilometers of the ocean.
And so a large number of people will be affected
if the water level rises.
If we allow global warming to go on.
Isn't it nice to be able to know everything?
I wish I knew everything.
I do.
And me and Zahli.
What changes to the climate in Australia
might I see in my lifetime?
It all depends on what we do in the next 10 or 20 years.
Okay.
With the technology that we have today
we can both stop and reverse climate change
and carbon dioxide levels
and bring both of them back
to what they were in the 20th century.
Can I be a scientist when I grow up?
Well, the fact that you're asking a question
means that you're already a scientist.
You see science is not a bunch of facts.
It's trying to understand the world around you.
You could be a doctor, like him.
I mean.
You be a doctor.
No, I wanna be a cop!
When I grow up, I want to be a
pirate.
A pirate?
But I want to be a friendly one.
I would like to see everything go back to normal,
no COVID or anything bad happen.
And I would also like if everyone that has COVID
would be better.
I declare a revolution for a school clean-up day.
Everybody in my school has to clean up
so we can clean up our lives and our ocean.
Ah! What a wonderful goal.
Thank you, Dr Karl, you're the best.
Oh shucks. You are the best.
Thank you so much.
You're very kind.
Thank you. Thank you.