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Renewable energy investment is gathering steam throughout the world. Australia's National Energy Guarantee policy should be made agile enough to jump on board, because this runaway train won't stop. Ken Baldwin, Director, Energy Change Institute, Australian National University Licensed as Creative Commons – attribution, no derivatives.

Bullish sentiment in recent months could help counteract weaker underlying fundamentals in Tuesday’s WCI auction, while Ontario’s departure from the programme will continue to limit price increases over the next decade, according to analysts.

The annual exhibition, which is part of Hobart’s Antarctica festival is back on with its chilly, majestic imagery. The winner this year is Sydney’s Sam Edmonds with his striking photo of a gentoo penguin in the snow. The show is currently being exhibited at the Tasmanian Museum and Art Gallery’s Basement Bond Store Gallery.

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Politicians and farmers say water should be diverted to crops to keep herds alive

There are growing calls for the federal and state governments to start selling government-owned environmental water entitlements to farmers to alleviate the drought and to keep livestock alive.

But the proposals would see wetlands and river courses starved of water with potential environmental stress from the drought exacerbated by the diversion of water onto farmland.

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Conservation groups have called for an end to the "indiscriminate and ruthless" mountain hare culls.

Judy Hindley says we must increase the price of fossil fuels, and Iain Climie raises the issue of climate change refugees

While I appreciate your work in keeping the spotlight on the global heatwave (World on fire: the rise of the 50C city, G2, 13 August), I’m scared by the emphasis of your correspondents and leader writers on “adapting” to climate change (Letters, 11 July). You don’t “adapt” to a raging fire, do you? You have to stop it. And the first thing you need to do is stop pouring fuel on it.

Leading scientists worldwide now agree that the main cause of the climate crisis is the burning of fossil fuels, and leading economists agree that the solution is to price fossil fuels out of the market. Until that happens, we will be paying – with our health, our lives and our children’s future.

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The Chinese tree has flowered for the first time since it was planted in Cardiff more than 100 years ago.

The next few years could be "anomalously warm", according to a new study.

German utility RWE advanced its hedging rates considerably over Q2 to take advantage of wider generation margins, it said Tuesday, potentially giving a bearish signal for EUA prices.

Our big toe was one of the last parts of the foot to become human-like, as our early ancestors evolved to walk on two legs.

First UK sighting of tiny jellyfish species normally found in the Yangtze basin in China

First came the wasps, exotic sharks and marauding seagulls. Now the long hot summer has revealed another initially alarm-inducing animal in British waters – or more precisely, in the Middlewich branch of the Shropshire Union Canal.

Freshwater jellyfish more normally found in the Yangtze basin in China have been spotted swimming in the waters near Bridge 23 of the canal between Middlewich and Winsford, according to the Canal & River Trust.

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The 25 Zero Project.  Twenty-five mountains on the equator have glaciers at their peaks. Unless we slow down climate change, in twenty-five years there will be zero ice. 25 Zero.

The Pacific Island is home to one of the world’s most pristine coral reefs, boasting more than 9,300 marine species

New Caledonia has agreed to tougher protections around a huge swathe of some of the world’s last near-pristine coral reefs, in a move conservationists hailed as a major breakthrough.

The Pacific nation, a French overseas territory, is home to a rich array of wildlife including 2.5 million seabirds and more than 9,300 marine species such as dugongs and nesting green sea turtles, many of which thrive in and around remote zones off the island nation’s coast.

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As temperatures rise, corals die and glaciers on the top of equatorial mountains melt away. The race to climate-proof iconic ecosytems.

The Great Barrier Reef faces warming oceans, more frequent and extreme cyclones and increased numbers of predator starfish. The race is on to build the resilience of coral reefs to survive these many threats.

European carbon prices briefly slipped back below €18 on Tuesday after a weaker auction, though EUAs had earlier set a new seven-year peak.

A large majority of Coalition MPs on Tuesday backed the Australian government’s proposed National Energy Guarantee (NEG), but state governments and the national parliament could still prove difficult obstacles for the plan.

Debate over the National Energy Guarantee has dominated headlines, here's what it actually involves.

As many as eight government MPs opposed the NEG in that meeting, and have reserved their right to cross the floor when it comes before Parliament.

New Zealand carbon allowances rose more than 3.2% on Tuesday as the market responded to a raft of government proposals to amend the emissions trading scheme.