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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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It's all fun and games until someone cops a fine. Dmitry Kalinovsky/shutterstock.com

Whether a beginner, a serious aviation enthusiast, or just a fan of gadgets, many of you will have received drones as Christmas gifts. Unmanned aerial vehicles (UAVs) have surged in popularity and affordability in recent years, and there’s no doubt that recreational drone use is on the rise as a result.

But not all recreational drone users know the law – or if they do, they don’t appear to be following it. There has been a string of near misses between drones and other aircraft, and other cases of irresponsible use.

Only last month, a recreational drone user was investigated by Australia’s Civil Aviation Safety Authority (CASA) after evidently flying a drone over a crowded Bunnings carpark to pick up a sausage at a sausage sizzle.

In the runup to Christmas, UN aviation officials this month warned anyone getting a drone to make sure they learn how to operate it safely. So if Santa has brought you one, here’s what you need to know.

Get on board

In Australia, if you want to fly your drone for fun, you don’t need CASA’s approval – as long as you follow the authority’s simple safety rules. Recreational drone operators must comply with CASA’s rules (known as its standard operating conditions).

You must only fly your drone within visual line of sight – that is, where you are able to see the drone with your own eyes, rather than with the help of binoculars or a telescope, for example. What’s more, you can only fly in visual meteorological conditions, which generally means no night flights.

In most Australian cities, you can only fly your drone up to a maximum altitude of 120 metres – most of this airspace is considered controlled airspace. To fly a recreational drone any higher, you must seek approval from CASA and adhere to any associated conditions.

During flight, you must keep your drone at least 30 metres from anyone who is not directly associated with its operation. The drone must also not be flown over populated areas (that is, areas that are sufficiently crowded that the drone would pose an unreasonable risk to the life, safety or property of someone present). This includes crowded beaches or parks, or sports ovals where a game is in progress.

Better check the rules before going for shots like this. Gustavo Frazao/shutterstock.com

There is a general prohibition on flying a drone in a way that creates a hazard to another aircraft, person or property. A “hazard” may be interpreted fairly broadly. To be safe, CASA recommends keeping your drone at least 5.5km away from any airfield. Operations within 5.5km of an airfield are allowed in some instances, as long as they are not on the approach and departure path, and would not otherwise get in the way of aircraft using the airfield.

Recreational drone users are also advised to respect personal privacy by not recording or taking photos of people without their consent. While privacy concerns are not within CASA’s purview, operators may find themselves in breach of state and territory privacy or trespass laws, depending on how and where the drone is flown, and whether audio, video or photographic footage is recorded.

High flyers

As a general rule, drones cannot be flown for money or economic reward without a specific licence. There are, however, two new instances where such a certificate is not required: for commercial-like operations over your own land, and for commercial flights with very small drones (under 2kg) provided that the pilot notifies CASA at least five business days beforehand, and adheres to all the existing rules for recreational drone use.

Having considered all the rules, the Bunnings sausage sizzle incident starts to look less like a harmless jape and more like a multiple breach of the rules (although the video’s author has claimed that the video was an edited composite rather than all shot during a single flight).

The video appears to show several breaches of the rules, including: flying a drone out of visual line of sight (assuming that it is being piloted from the backyard hot tub depicted in the video); flying within 30m of people; and flying over a populated area. The operator is potentially facing a fine of up to A$9,000.

If you’re worried your new drone might get you into similar hot water, CASA provides significant guidance to help operators avoid infringing the rules. That way, you can make sure your high-flying gift doesn’t end up ruining your Christmas cheer.

Rebecca Johnston does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

Experts say Theresa May, if she accepts view of report, would have to outline how government intends to protect the nation

In a landmark report, the government is to outline the specific risks it believes Britain faces due to the impact of climate change. The report, to be delivered early in the new year, will be the first response made by Theresa May’s administration to a major environmental concern and will have considerable implications for future green policy outcomes.

The UK climate change risk assessment, the first since 2012, will spell out what the government believes are the major risks facing Britain as global warming continues to affect the planet. Earlier this year, the Committee on Climate Change, a body of experts set up under the Climate Change Act to advise government, said Britain was poorly prepared for global warming. Likely impacts include deadly heatwaves, flooding, and food and water shortages, it said.

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Could wave energy ever power the world?

SENG QLD December Newsletter - Emergency Climate Action

Chalton, Hampshire In the morning we find a carpet of shining black pellets brimming with skulls and rubbery tails

At the highest and darkest point of the South Downs escarpment, an Anglo-Saxon hall stands beefy and lumbering under a black sky dusted with stars. Built with hand-hewn oak timbers and hazel spars, it is the latest addition to the educational farm on Butser Hill where I work as a creative developer, feeding goats and designing guide books.

The farm is an outdoor archaeological laboratory, and recreates ancient buildings from the neolithic period onwards. Inside the hall a log fire releases sparks like doves at a wedding, burning through the daylight hours to amuse wandering visitors searching for a taste of history.

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A UK designer launches the "30-year Christmas sweatshirt" to question the ethics of the "fast fashion" industry.

Temperatures at the North Pole could be up to 20 degrees higher than average this Christmas Eve.

British-born astronaut Piers Sellers has died of pancreatic cancer, aged 61, Nasa says.

David Suzuki says we are the first species in the history of life on Earth to have created the conditions for our own demise.

We’re currently having a national conversation about climate and energy, with reviews of climate policy and the National Electricity Market underway. Up for debate is how the states and federal government will share these responsibilities.

Following the recent statewide blackout in South Australia, the federal government pointed the finger at Labor states’ “aggressive”, “unrealistic” and “ideological” renewable energy targets.

Victorian Premier Daniel Andrews returned: “Rather than peddle mistruths, Malcolm Turnbull and Barnaby Joyce should start providing some national leadership and focus on developing a renewable vision beyond 2020.”

It might seem to be yet another partisan, ideological stoush between a Liberal federal government and three Labor state governments.

However, the Liberal-led New South Wales government has now also entered the fray, with a 2050 emissions target that will almost certainly require complete decarbonisation of the electricity sector within the next 25 years.

And to achieve this, renewables will have a key, many would argue overwhelming, role to play.

What are the states already doing?

NSW released its climate policy framework in November, joining Victoria, South Australia and the ACT with an aspirational target to reduce carbon emissions to net zero by 2050.

While NSW didn’t announce a renewable target, the majority of states now have one. Queensland is seeking 50% renewable generation by 2030, Victoria 40% by 2025 and South Australia 50% by 2025.

Tasmania’s generation is already mostly renewable (albeit mostly conventional hydro generation). The Australian Capital Territory looks set to achieve 100% renewables by 2020 and the Northern Territory has announced a 50% target for 2030.

At present, the federal government has a renewable energy target of around 23.5% renewable electricity by 2020 and a 2030 target of 26-28% greenhouse emission reductions from 2005 levels. These ambitions fall way below those of the states.

And way below the almost complete electricity sector decarbonisation by 2040 that the International Energy Agency says is required globally to avoid dangerous global warming.

What does the law say?

Constitutionally, energy policy in Australia is a matter for state governments. The development and implementation of the National Electricity Market over the past two decades has been achieved through the Council of Australian Governments (COAG), with harmonised legislation in each state.

State governments therefore have the constitutional scope to act both independently and in consort to achieve clean energy related goals.

Whether they should choose to do this, however, is another question. There is an obvious national context including Australia’s participation in international climate change processes such as the UN Framework Convention on Climate Change.

National policy coherence also has value in avoiding uncoordinated policies that can adversely impact investment incentives, increase compliance costs, and generally lead to less efficient outcomes.

While suitably ambitious, nationally consistent, legislation under federal government leadership may be ideal, it hardly seems realistic at present. The apparent divisions within the federal government seem likely to prevent useful progress, even with the two reviews.

It might well be a choice between state leadership or very little leadership over the next few years. And these years will be key to setting Australia on a clean energy path fit for the future.

New South Wales’ climate plan

The NSW climate change policy framework proposes to meet the net zero target through a number of policy “directions” to reduce emissions. It also proposes adaptation measures to cope with the warming that is already underway.

The emission reduction directions include: enhancing investment certainty for renewables; boosting energy productivity (energy efficiency); capturing other benefits of reducing emissions (such as improved health from reduced air pollution) and managing the risks; and growing new industries in NSW.

These are to be advanced through government policy, government operations, and advocacy. Specific initiatives are to be outlined in a set of action plans, including a climate change fund and an energy efficiency plan, which are currently under consultation.

A further advanced energy plan will be developed in 2017. This will include provisions for the future role of renewable energy. Clearly the government will not be able to achieve its aspirational emissions target in the absence of a transformation of the energy system, so how will renewable energy figure in the absence of a state target?

While we can’t preempt the plan, the policy framework defines advanced energy to not only cover renewable generation itself but also how it is integrated into industry structures and adopted by end users.

Given the importance of integration in transitioning the energy system, such a broad focus could usefully complement the activities of other states as well as NSW.

The policy also emphasises collaborating with the commonwealth and other states through COAG.

NSW: a climate advocate?

Combined state action has historically played a key role in federal climate policy. It was bottom up pressure from states that resulted in the Howard government’s initial emissions trading scheme (ETS) proposal in 2007.

The Garnaut review that formed the basis of Kevin Rudd’s ETS was originally commissioned by Labor state governments.

On this point SA Premier Jay Wetherill has taken the lead in calling for a national emissions trading scheme to be implemented through harmonised legislation at a state level.

While this seems unlikely to be a feature of NSW’s advocacy in 2017, continued failure by the federal government to advance climate and energy policy might require such types of coordinated state efforts.

In this light, state government efforts do not appear “ideological”. That would seem to better describe the federal government’s present opposition to even exploring promising emission reduction options.

And while it is too soon to know if NSW’s climate policy is fit for the future, it certainly represents welcome progress, and provides a basis that can be built upon.

Anna Bruce receives funding from the Australian Renewable Energy Agency (ARENA), Energy Consumers Australia and the Australian Research Council Cooperative Research Centre for Low Carbon Living (CRC-LCL), and leads the Australian PV Institute's solar mapping work.

Graham Mills receives funding from the CRC for Low Carbon Living

Iain MacGill is a Joint Director of UNSW Australia's Centre for Energy and Environmental Markets. The Centre has received funding from a range of government sources including the Australian Research Council, Energy Consumers Australia and ARENA. He has also undertaken consultancies for a number of Australian State Governments and the Federal Government on clean energy regulation, markets and policy. He also contributes unpaid expert advice to a number of government organisations, industry associations and not-for-profit groups in the clean energy area within Australia and internationally. Iain's share portfolio includes AGL which owns a range of coal, gas and renewable generation in Australia.

Wildlife advocates said the animals, which were being readied for shipment on Friday night, were unsuitable for live export

More than 30 wild elephants were being readied on Friday evening for an airlift from Zimbabwe to captivity in China, according to wildlife advocates.

The founder of Zimbabwe Conservation Task Force, Johnny Rodrigues, said on Friday that their plane was still at Victoria Falls airport because officials could not find scales big enough to weigh the animals, which were confined inside heavy crates.

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In 1945 the first Country Hour program went to air, and so began Australia's longest running radio program. We're looking back at the biggest agricultural stories to celebrate 70-plus years of ABC rural broadcasting. We begin in the 1940s and the start of the Snowy Mountains scheme.

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.

In 27 years as environment editor at the Guardian, I have seen both devastation and progress. Now I’m retiring – but I still have hope for the future of the planet

In September 1989, Guardian editor Peter Preston took me to one side. “Environment? Your idea. You do it,” he said. I was on the arts desk and had quite forgotten that, two years earlier, I had proposed that we cover this fast-emerging issue in more depth and with new pages.

We had a great correspondent in Paul Brown, but no single journalist could keep up with events. This was the height of Thatcherism, the old Soviet Union was collapsing in ecological ruin, and there had been serious nuclear accidents at Three Mile Island and Chernobyl. That year, more than two million people in Britain had voted Green in the European parliament elections.

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