Ancient cultures, from Greece to Asia, have used urine as a fertiliser to provide nutrients to their crops. Is recycling our urine a radical solution to global food security and saving our waterways?
Named after a Greek sea goddess, CETO is a wave energy technology that converts ocean swells into zero-emission electricity and zero-emission desalinated freshwater.
Is pumping carbon dioxide into the ground a novel solution to reducing greenhouse gases leading to climate change or is it just sweeping the problem under the rug?
The battle continues with the cane toads that will soon be reaching the Bungle Bungle range in the World Heritage Listed Purnululu National Park in Western Australia.