#392      37 min 44 sec
Feeding the 9 billion: Inconvenient truths about global food security

Prof Timothy Reeves

Sustainable agriculture expert Prof Tim Reeves discusses the profound changes required in agricultural practice, public policy and consumer behavior if we are to feed earth’s ever-growing human population that is projected to exceed 9 billion in 2050. Business as usual won’t pass muster anymore. With host Dr Andi Horvath.

#389      38 min 35 sec
Genetic find and replace with CRISPR: Technology that will revolutionize medicine and agriculture

Prof Jacob Corn

Molecular biologist Prof Jacob Corn describes how gene editing is carried out with CRISPR-Cas9. He explains why this technology has the potential of revolutionizing the treatment of diseases such as sickle cell anemia and malaria. Besides human health, CRISPR-Cas9 can also contribute to improving agriculture and, consequently, food security. Jacob also discusses the possible ethical challenges posed by the widespread application of gene editing. Presented by Dr Andi Horvath.

#386      36 min 43 sec
Global warming's companion crisis: Reactive nitrogen and its threat to human and planetary health

Prof Mark Sutton

Environmental physicist Prof Mark Sutton explains how our fast growing "nitrogen footprint" from agriculture and industry is reaching crisis levels as reactive nitrogen pollutes our air and soil and is a direct threat to human health. A leading researcher and advisor on nitrogen policy, Prof Sutton argues that smarter nitrogen management is not only a health and environmental priority but will prevent continued enormous economic losses. Presented by Dr Andi Horvath.

#357      19 min 45 sec
Germ warfare: Young researchers seeking answers to diverse microbe threats

Claire Gorrie
Rebecca Vandegeer

In our annual PhD episode, two young science researchers discuss their investigations of microbes that threaten, respectively, human health and our food supply. We chat with Claire Gorrie about aspects of the drug-resistant bacterium Klebsiella pneumoniae, and how it's implicated in serious infections. And Rebecca Vandegeer tells us how the Barley Yellow Dwarf virus strips our wheat crops of their defences, posing a threat to food security. Presented by Dr Andi Horvath.