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Women in 'agri-tech'. With a new wave of entrepreneurial farmers growing crops indoors, stacked vertically, on rooftops, and even underground, Ella Al-Shamahi speaks to two farming entrepreneurs producing soil and pesticide-free food - farming that's indoors, local, and which aims to be sustainable too.

Grace Lim runs GroGrace - an indoor vertical farm housed in an old warehouse in urban Singapore, using soil-free dry hydroponics. Her approach is good for cities short on space and is encouraged by Singapore's 30 by 30 food security goal - to increase locally grown food production to 30 per cent of its needs by the year 2030.

Rebecca Nelson has been a champion of aquaponic farming for nearly 40 years – using fish in tanks in place of soil. Farming both fish and a wide variety of crops - from lettuce to bananas, in Wisconsin USA - she says it’s healthy, high yield, and very educational. She shares her expertise with people all around the world - including schools and foodbanks.

Presenter: Ella Al-Shamahi
Producer: Emma Wallace

(Image: (L) Rebecca Nelson courtesy Rebecca Nelson. (R) Grace Lim credit Grace Lim.)