What's happened to Birmingham's famous canals - they've turned green and it's all because of this - video Dailymotion

What Birmingham's canal network looks like now after being taken over by a carpet of thick duckweed.

Transcript

00:00This is the new airport of Kuala Lumpur.

00:08The airport is located in the heart of the city of Kuala Lumpur.

00:16There are many airports in Kuala Lumpur.

00:24Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

00:32Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

00:40Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

00:48Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

00:56Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

01:04Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

01:12Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

01:22Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

01:30Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.

01:38Kuala Lumpur Airport is located in the heart of the city of Kuala Lumpur.