• Professor of Digital Agriculture & Soil Science; Director, Sydney Institute of Agriculture, University of Sydney
Soil is a non-renewable part of the environment. Can it sustain food production for our growing population? www.shutterstock.com

In 100 years’ time, maybe our food won’t be grown in soil

The thin layer of soil on our planet’s surface ultimately sustains us all, but it’s a finite resource. With a growing global population, perhaps it is time to start looking for alternatives.
Microplastic in the soil is extremely difficult to track (or remove). Florida Sea Grant

We have no idea how much microplastic is in Australia’s soil (but it could be a lot)

Ocean plastic has made a big splash, but there may be even more microplastic on land. The problem is that we have no idea exactly how much is in Australian soil, where it is, and what it’s doing.
It’s expensive to apply nitrogen fertiliser, but there are other ways to store carbon in soils. Jiggs Images

Storing carbon in soil: potential opportunities outweigh limits

For several years, and particularly since the advent of the Coalition’s Direct Action policy for reducing emissions, the potential of agricultural soils in Australia to soak up carbon has been widely debated…
We need to preserve and conserve our soils to protect our food supply. NateLove on Flickr

Soil: it’s what keeps us clothed and fed

FOOD SECURITY - Soils can help us solve two of the most pressing problems of the coming decades: climate change and food shortage. There is more fresh water in the world’s soils than in all its lakes and…

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