Rob Roggema . Articles Sydney's closer to being a zero-carbon city than you think You live in one of the sunniest countries in the world. You might want to use that solar advantage and harvest all this free energy. Knowing that solar panels are rapidly becoming cheaper and have become feasible even in less sunny places like the UK, this should be a no-brainer. Despite this, the Australian government has taken a step backwards at a time when we should be thinking 30 years ahead. Higher density in a flood zone? Here's a way to do it and reduce the risks We are starting to understand we will be hit by ever-increasing storms and floods. The risk is especially high in years when La Nina makes her appearance. We also know good urban design can reduce the impacts. Cyclone Debbie: we can design cities to withstand these natural disasters What happens after Cyclone Debbie is a familiar process. It has been repeated many times in cities around the world. The reason is that our cities are not designed for these types of events.