With climate change and rising populations, we have to find more sustainable ways to farm our food. Are hydroponic greenhouses the key to farming’s future? Subscribe to ABC Science YouTube 👉 https://ab.co/2YFO4Go

This is an excerpt from the Australian documentary series, Catalyst: Feeding Australia, originally broadcast on 14th August 2018. The full program will be available for Australians to watch: https://iview.abc.net.au/show/catalyst

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