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Think of all the resources needed to transform Shenzhen, a fishing town 35 years ago, into a megacity of more than 10 million people. Wikimedia Commons

Our cities need to go on a resource diet

Our cities need to become much more efficient not just to conserve precious resources but to improve the economy, wellbeing and resilience to environmental change and disasters.
Scientists assess coral deaths in the worst-affected part of the Reef in November 2016. Andreas Dietzel, ARC Centre of Excellence for Coral Reef Studies.

How much coral has died in the Great Barrier Reef’s worst bleaching event?

Two-thirds of the corals in the northern part of the Great Barrier Reef have died on in the reef’s worst-ever bleaching event, according to the latest underwater surveys.
A large proportion of Australia’s perishable vegetables and fruit, such as strawberries, are grown on city fringe farmland around Australia. Matthew Carey

The key to future food supply is sitting on our cities’ doorsteps

Australia’s city foodbowls are an important part of the nation’s food supply, but they’re under increasing pressure from growing populations.
The idea is to come up with better alternatives to this. Australian Customs and Border Protection Service

Could ‘whale poo diplomacy’ help bring an end to whaling?

Japan’s fleet is on its way to the Southern Ocean for more “scientific” whaling. But a new resolution pointing out the importance of whale poo could help remove Japan’s rationale for lethal research.
The Fukushima Daini plant, 11km from the ill-fated Daiichi station, suffered a technical problem in one of its spent fuel cooling ponds. EPA/Kimimasa Mayama

Is Fukushima still safe after the latest earthquake?

The latest earthquake off Japan’s east coast was an ominous reminder of the 2011 Fukushima disaster. But despite a technical hitch at one of Fukushima’s other reactors, there was no repeat this time.
French President François Hollande was among those who warned Donald Trump not to withdraw from the Paris climate deal. EPA/Mohamed Messara

Marrakech climate talks produced defiance towards Trump, but little else

The latest climate summit began the long slog towards putting the Paris Agreement into action. But it generated more questions than answers, particularly on how to handle a Trump-led United States.