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The President-elect’s nominees to key positions deny the existence, threats, and solutions to human-caused global warming

When speaking about climate change, President-elect Trump has flip-flopped between acceptance and denial, which suggests that he hasn’t put much thought into one of humanity’s greatest threats. However, what his administration does is far more important than what he thinks. Unfortunately, Trump has nominated individuals to several critical climate leadership positions who reject inconvenient scientific and economic evidence.

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Urgent action is needed to stop the world’s fastest land animal becoming extinct, experts have warned

Urgent action is needed to stop the cheetah – the world’s fastest land animal – becoming extinct, experts have warned.

Scientists estimate that only 7,100 of the fleet-footed cats remain in the wild, occupying 9% of the territory they once lived in. Asiatic populations have been hit the hardest, with fewer than 50 surviving in Iran, according to an investigation led by the Zoological Society of London (ZSL) and Wildlife Conservation Society (WCS).

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Urgent action is needed to stop the cheetah - the world's fastest land animal - becoming extinct, scientists say.

A selection of images captured by photographers over the past 12 months, including a Donald Trump lookalike pheasant, kissing parakeets, and a lost sloth

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Allendale, Northumberland The lights dance and shift, fading or intensifying, undulating in curtains of colour

As I open the back door, the path shows up in a rectangle of light, the gravel sparkling like golden sugar. My breath shows in pale mists that billow and dissipate in the air. The owls that called repeatedly at dusk are now silent, hunting for voles across the frozen haugh. There’s the sharp smell of cold, and the river seems much louder than it does by day.

Here, in the frost hollow of the valley, it is a couple of degrees lower than the surrounding hills. Cooler air, being denser, flows down into the bowl of the land. The grasses and seedheads of the garden become outlined in hoar frost, coated in spiky crystals, the shrunken browns and greys of dying foliage enlarged into something magical.

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A selection of the best science and environment reads this year.

David Pitt, 77, went into cardiac arrest after highly venomous reptile bit him on the foot in his home in far north Queensland

An elderly man bitten by a taipan at his home in Queensland has died after spending nearly a week in hospital.

David Pitt, 77, went into cardiac arrest after the highly venomous snake bit him on the foot at his home in Yorkeys Knob, Cairns, on 20 December.

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If 2015 ended on a note of hope, with the successful conclusion of the Paris climate talks, the overriding impression of 2016 is that last year’s optimism has been answered with a large reality check.

The Paris Agreement was meant to herald a year in which politicians would finally cut through the stalemate and start saving the planet. Instead we watched aghast as swathes of the Great Barrier Reef were killed by climate change, while the political uncertainty only grew. Donald Trump completed his improbable climb to the US political summit, and Australian climate politics stayed mired in the trenches.

Nowhere was that more evident than in the unseemly blame game over the statewide blackout that plunged South Australia into darkness on a stormy night in September.

With fingers being pointed at the state’s reliance on wind power, Prime Minister Malcolm Turnbull used the incident to call for an end to Labor states setting their own agendas on renewable energy. That was despite analysis showing that the blackout was due to 22 transmission towers being knocked over.

The planned closure of Victoria’s Hazelwood power station prompted more argument over cheap brown coal versus expensive electricity. The debate culminated in the Turnbull government’s 24-hour dalliance with the idea of an emissions intensity scheme for power stations (a policy that Labor took to July’s federal election).

The episode was seen as a slapdown for minister Josh Frydenberg, who in July had been handed the “superportfolio” of energy and environment in an overdue acknowledgement that these issues are now one and the same.

One of Frydenberg’s biggest tasks for 2017 will be handling the planned review of climate policy. Figures released quietly before Christmas underline the fact that Australia is on course to miss the government’s 2030 emissions target of 26-28% below 2005 levels. This year’s events proved that the electricity sector, the biggest source of emissions, is in serious need of reform.

In the states, Queensland continued to navigate a legal course for the controversial Carmichael coal mine, while SA Premier Jay Weatherill suggested a plebiscite to decide whether the state should build an international nuclear waste dump.

In fact, one of the year’s quietest periods for environmental policy was during the federal election campaign itself – neither climate nor conservation rated more than the briefest of mentions.

Death comes to the reef

The year’s biggest single environmental story was the unprecedented coral bleaching that hit the Great Barrier Reef in March and April. The bleaching affected more than 1,000km of the reef and prompted a storm of media reports – some more accurate than others.

Months later, the damage is clear: two-thirds of corals on the reef’s northern stretches are dead. Researchers are watching anxiously to see how much will bounce back.

Elsewhere on the high seas, there was better news for environmentalists. Oil giant BP cancelled plans to drill in the Great Australian Bight, and Australia’s Macquarie Island research station earned a reprieve after being slated for closure by the government.

In October, nations signed off on creating the world’s biggest marine park in the Southern Ocean around Antarctica. Meanwhile, Australia had a win (of sorts) in its battle with Japan’s whaling program, successfully sponsoring a resolution to provide greater oversight of “scientific” whaling.

In reality, however, the voluntary measure will have little effect on Japan’s activities. Perhaps it’s time to admit that whaling cannot be stopped altogether, and maybe even try some “whale poo diplomacy” instead.

Talking Trump

Speaking of diplomacy, when delegates arrived at November’s UN climate summit in Marrakech, they were expecting to begin putting flesh on the bones of the previous year’s Paris Agreement. This came into force with record speed just 11 months after it was signed.

But on its third day the summit was hit by a “Trump tsunami” as the surprise US election result dawned. Perhaps understandably, the conference morphed into a show of defiance towards the new president-elect.

It is still unclear whether Trump will follow through on his threat to withdraw from the Paris deal. For those keen to see global climate action continue, perhaps the most optimistic view is that Trump will be unable to revive the coal economy singlehanded, and that if the United States does relinquish the climate leadership it has belatedly shown under President Barack Obama, China will be more than willing to step up.

Heat and ice

While the political hot air flowed, the climate records kept tumbling. 2016 is set to be confirmed as the hottest year ever recorded, although September did bring an end to the streak of 16 consecutive record-setting months.

In May, the southern hemisphere joined the north in passing the symbolic milestone of 400 parts per million of carbon dioxide in the atmosphere. But the good news is that global emissions seem, at long last, to have plateaued – although the picture is less rosy when it comes to methane emissions.

The El Niño came to an end, after helping to push Australia’s summer sea temperatures to record levels. We learned that rising seas have claimed five entire Pacific islands, while the Arctic ice is at record low levels, driven by a freak bout of human-induced warm weather.

Meanwhile, Earth’s last remaining wild places are being crisscrossed by roads, although there was some rare good news in the only place on Earth where tigers, rhinos, orangutans and elephants all live together – a treasured Indonesian forest now saved from logging.

If all that wasn’t enough, we were told that we are officially living in the Anthropocene Epoch, courtesy of nuclear weapons testing – which came to Australia 60 years ago this year.

A more nature-loving 2017?

Having polished off your ethically raised Christmas ham, perhaps now is the time to resolve to engage a bit more with the natural world in 2017.

While you might not be able to sail a scientific voyage around Antarctica, climb trees to save orange-bellied parrots, or discover previously unknown wild gatherings of animals, there are things you can do at home.

You might decide to join in a citizen science program, tend your garden, or get to know some of the fascinating critters who share your home.

You could even get closer to nature while doing the most 2016 thing possible: playing Pokémon GO.

So if the past year in environmental news has left you feeling despondent, look on the bright side – at least you don’t have a ball of 150 huntsman spiders living in your house … or do you?

Astronomer Vera Rubin, whose pioneering work led to the theory of dark matter, dies at 88.

A new study estimates there are just 7,100 now left in the wild as the wide-ranging mammal faces growing conflict with humans.

Calls for culls always surge after attacks by ‘salties’ but it’s their habitat not humans that will decide their numbers

For the people of Australia’s tropical north, a wary coexistence with crocodiles is a fact of life.

Protected for more than four decades after being hunted to near extinction, the ancient reptile – on the credible numbers that are available – has staged a remarkable recovery.

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UK scientists have decoded the genome of the ash in the fight against a devastating plant disease.

Ground-breaking genetic analysis shows native trees may be more resistant than Danish ones to the deadly fungus that has spread across Europe

British ash trees seem to have better resistance against a deadly fungus which is devastating trees across Europe, according to research which has decoded the DNA of the species for the first time.

The ash dieback fungus has spread rapidly since it first arrived in England in 2012 and the latest data shows it is now found in more than half of the country. It has already affected 90% of trees in Denmark and threatens to all but wipe out ash trees, one of Europe’s most common trees.

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A year after severe floods in wake of Storm Desmond, John Krebs says ministers still have no coherent long-term plan to deal with it

Major flooding in the UK is now likely to happen every year but ministers still have no coherent long-term plan to deal with it, the government’s leading adviser on the impacts of climate change has warned.

Boxing Day in 2015 saw severe floods sweep Lancashire and Yorkshire, just weeks after Storm Desmond swamped Cumbria and parts of Scotland and Wales. The flooding, which caused billions of pounds of damage, led to the government publishing a review in September which anticipates 20-30% more extreme rainfall than before.

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The 200kg mammal had to be tranquillised after climbing on to a car in suburban Launceston

A giant fur seal that spent Boxing Day wandering suburban Tasmania’s streets will be released back into the wild.

Police, and parks and sildlife officers spent much of Monday morning trying to capture the seal, which took a stroll along the streets in Newstead, Launceston – at one point managing to climb on to a car.

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River Welland, Lincolnshire This path alone is a find. It’s like walking through a ribcage

Following the river, I got here. Not waterborne as I might have liked; it’s not a day for the canoe. Instead I looked at the map, for new places where the river touches the land. How many find country by looking near roads? But roads go where we wanted them to: the river goes where it has always gone.

One place caught my eye, a place called Spring Woods. Not for spring like the season, but for a series of springs rising on the river’s northern bank, away from roads on a bend where the Welland leaves Stamford, thins, and starts to slink.

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A selection of the best science and environment reads this year.

We search for bum-breathing turtles in the Mary River in Queensland; bait foxes in the remote and rugged Burrup Peninsular; and join citizen scientists looking for fungi in the Tarkine Forest.

Conservationists say about 80 creatures in zoos and private collections hold key to re-establishment of the endangered species

Fewer than 100 Scottish wildcats are now believed to exist in the wild, say leading experts, with no evidence of any decent sized populations anywhere in the country.

While it had been hoped up to 300 may still survive, recent extensive monitoring suggests a lower figure, with individuals or small groups clinging on in isolated and fragmented pockets.

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Swimmers urged to stick to patrolled beaches after high number of sightings at favourite holiday spots

About 30 sharks were sighted along Victorian beaches on Christmas Day, prompting Fisheries Victoria to urge people to swim at patrolled beaches.

The Life Saving Victoria helicopter spotted 12 sharks off Anglesea beach, a favourite holiday spot on the Great Ocean Road. About 13km south, between 15 and 20 sharks were sighted at Fairhaven beach.

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