The Guardian Climate Change

Stephanie Carrie gives tours and educates Angelenos on the importance of the urban forest – and how to improve it

On a recent Sunday morning, 25 Angelenos gathered under a large rusty leaf fig tree for a walking tree tour in a local Culver City park that was also playing host to an outdoor tai chi class as well as a group of yogis.

As we walked past Chinese elm trees, coast live oaks and Brazilian pepper trees, Stephanie Carrie shared the history of the city’s celebrated palm trees with a rapt audience. Many of today’s trees, planted in the 1930s, are approaching the end of their lives – and while they have become symbols of the city, they also guzzle water, fueling calls to replace them with drought-resistant trees.

The man behind Amy and Senna has turned his attention to ‘techno-authoritarianism’ in the genre-defying 2073. He talks to our journalist – one of the movie’s unlikely stars – about the events that fed his dystopian vision

It was some time in the early 2000s and Asif Kapadia, already a successful film director, a wunderkind whose first feature in 2001, The Warrior, won the Bafta for outstanding British film, was travelling back from New York.

“There’s a beautiful, gorgeous sunset over Manhattan. I’m in a limo being taken to the airport. And I was taking photos of Manhattan because I was driving over Brooklyn Bridge and it’s just all so cinematic and I became subconsciously aware of the driver watching me in the rear view mirror.

Despite a clever comms strategy, there are significant credibility issues around the assumptions on which the cost estimates are based

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The Coalition has moved a considerable way on climate and energy since Scott Morrisson brought a lump of coal into the parliament and told us not to be afraid. On Friday, the Coalition finally released the long-awaited details of the nuclear plan it will take to the election and, once again, asks us not to be afraid – of the price tag, the higher climate pollution and a range of other variables.

However, despite a clever comms strategy, there are significant credibility issues around the assumptions on which the cost estimates are based, and there are other critical issues that have been left unanswered. Australians have a right to consider all the issues they are being asked to vote on, with facts rather than political rhetoric. These issues can be broadly listed under three headings: the economics, the environment and the law.

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Nicki Hutley is an independent economist and councillor with the Climate Council

The fall of Assad in Syria, protests in Georgia, the Franklin Fire in Malibu and the reopening of Notre-Dame de Paris: the past seven days as captured by the world’s leading photojournalists

Amid Italian island’s worst drought, towns such as Troina are fighting for survival as supplies run dry and tensions rise

An ancient Sicilian proverb goes like this: “When water to two fountains flows, one will stay dry – that’s how it goes.” The residents of the small town of Troina in the heart of Sicily, struck by a long and unprecedented drought, perhaps understand its meaning better than anyone else. When authorities decreed that the little water left in their dam should be shared with the villages of another province, they took action, and, on 30 November, occupied the distribution centre of the reservoir, blocking access.

“It’s a war between the poor; we are aware of it,” says Salvatore Giamblanco, 66, owner of a bed and breakfast in Troina. “But we had no other choice. The dam is drying up. We have difficulty finding water for ourselves. I had to cancel numerous reservations due to the lack of water. If we also have to share what little we have with other towns, we will all be left dry.”