Hello.
This is 6 Minute English from BBC Learning English.
I'm Neil.
And I'm Sam.
We're talking about the environment in this programme,
specifically climate change.
Now, Sam, what do you think is the biggest cause of climate change?
An obvious answer would be that
climate change is the result of carbon emissions caused by humans.
It's about people's carbon footprint –
the measurement of how much carbon dioxide is produced
by someone's everyday activities.
That makes sense.
But recently some scientists, especially in the west,
have been focusing on another issue:
the increasing number of people in the world,
something known as overpopulation.
In this programme, we'll be discussing the controversial link
between overpopulation and climate change.
And as usual we'll be learning some new vocabulary, as well.