The race is on to transition to a low-carbon economy. If we ditch fossil fuels will electricity and heating be even more expensive? Three energy specialists weigh up the pros and cons of solar, wind, hydro, biomass and hydrogen.

Making renewable energy reliable and affordable and glaciers disappear as climate change bites.

The frozen confinement holds answers to the development of biodiversity, direct weather patterns across the world and is possibly our best indicator of climate change.

Dogs can be trained to do all kinds of things and they have emotional intelligence. It's these characteristics which make them great companions for people with mental health conditions. But can therapy and assistance dogs heal hearts and minds?

Stan Grant tells Paul Barclay we live in age of grievance, where identity divides, rather than unites, us. He believes liberal values still matter, and changing the date of Australia Day would be a mistake.

China has developed its own version of the internet. The government blocks access to foreign websites like Facebook and Google and it employs a cyber army to monitor social media and censor sensitive topics. Other countries are now looking at adopting the Chinese model.

Don’t skimp on your eight hours of sleep each day! Sleep has a direct impact on social behaviour, mental health and obesity. In fact, you die if you don’t sleep — quicker than you starve to death.

Reith lecturer Jonathan Sumption argues that law has expanded to fill the space once occupied by politics. He wants to revitalize the public's interest in politics but says complaints about political elites are misguided. He weighs up proposals to change the constitution and voting systems.

The internet has fragmented communities, proliferated fake news, distracted children, and led to disengaged citizens, according to Peter Lewis. What happened to the digital Utopia?

After decades of the one child policy who will take care of China's elderly? 350 million people will be sixty-five plus in China by 2040. The one child policy was abolished in 2015 but China's birthrate hasn't increased as expected so aged care may not be any easier for the next generation.