"I am living in New Zealand.
But hey, people will still look at my colour and go, 'Hey, where are you from? Which island?'
And I will say, 'Oh, I am from Tuvalu.' They will say 'Where is that?' What shall I say then?
'Oh, it has disappeared or drowned under the sea because of global warming?'
That is our identity, our culture.
Everything will disappear.
We may get together here as a community and celebrate Tuvalu holidays…but it is different here in New Zealand.
It is going to be really hard for us to accept that we are no longer on the map."
Rising sea levels do not just threaten Tuvalu.
In the coming years, rising water will affect most coastal areas around the world.
And sadly, many of these areas are among the poorest areas in the world.
Most of Bangladesh is just above sea level.
Millions of Bangladeshis live in areas that may one day disappear under water.
But many of them do not know it.
"In my case, since I am quite educated, I can go to Dhaka and live quite happily.
But what will happen to my neighbours and family who are really uneducated, who do not even know what climate is?
For them the climate disaster will be unexpected so they are going to die."
That was Mohon Mondal. He works for a local group called "Working for Coastal People."
Mohon and his group are teaching coastal Bangladeshis about climate change.
They do this by performing plays for the people.
"To the village people, plays are a great source of entertainment and joy.
They do not really have access to films.
So whatever you say in a drama or play, people remember it better."