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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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A British team is in the final stages of designing its car for next year's World Solar Challenge in the Australian desert.

Fruit bats, a nosy kangaroo and the last male northern white rhino are among this week’s pick of images from the natural world

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The week’s top environment news stories and green events. If you are not already receiving this roundup, sign up here to get the briefing delivered to your inbox

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“Only vicar’s daughters become naturalists.” This was the response of Stan Micklethwaite when his young daughter Mari (my future wife) declared her life’s ambition. Stan spent most of his working life weighing wagons of coal at the pithead of Barrow colliery near Barnsley, yet his many active leisure pursuits included beekeeping and gardening, with Mari always at his side, eager to learn. Neither Stan nor Mari’s mother, Nellie, lived to hear of the fame that Mari, who has died aged 80, went on to achieve in her adult career as a wildlife writer, illustrator, broadcaster, conservationist and storyteller. No doubt they would have been surprised as well as very proud.

Mari and I met in 1954, as chief bridesmaid and best man at a cousin’s wedding, and we married two years later. It was only after our four children were all at school in Warwickshire that Mari was able to enrol in classes at local colleges to learn more of botany, horticulture and ecology, writing copious notes with cross-reference to multiple sources as well as her own careful observations of the natural world around her.

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The aftermath of southern Africa’s drought is having a devastating impact in rural Zimbabwe. More than four million people will be in need of food aid between January and March 2017, nearly half the rural population

All photographs by Justin Jin

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An oil terminal to be built in northern Russia where the river Yenisei meets the Arctic Ocean lacks the technology to deal with oil spills, say environmentalists

The livelihood of the Nenets people who live along the northern stretches of the Yenisei, Russia’s longest river, depends on two pursuits: fishing and reindeer herding.

But locals have said both of those activities are under threat from an oil terminal due to be built on the Tanalau cape, near where the river empties into the Arctic Ocean. Greenpeace and the World Wildlife Fund (WWF) have protested against the high risk of an oil spill in difficult Arctic conditions. More than 40 people have signed a letter of protest to the company building the terminal, the Independent Petroleum Company (IPC).

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Record temperatures threaten traditional ways of life in Greenland but as the sea ice retreats, new mining, fishing and tourism opportunities are helping communities to adapt

Asked if he is fearful about the impact of climate change, Tønnes “Kaka” Berthelsen’s response is typical of many Greenlanders. “We are more concerned about the Maldives,” he said bluntly.

Greenland has lived with extreme environmental changes for a decade or more. Sea ice is forming two months later and melting one month earlier. Rivers fed by retreating glaciers are at record levels. And temperature records were smashed twice this year, with stunned meteorologists rechecking their measurements after 24C was recorded in the capital, Nuuk, in June.

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National Grid expect Len Goodman’s show to create a ‘TV pickup’ as people across the country boil kettles, flush toilets and switch on lights after the show

Len Goodman will follow in the footsteps of David Jason, Pauline Collins and an extraterrestrial as one of Christmas TV’s top challenges for the people tasked with keeping the lights on.

When the judge finishes reminiscing over 12 years of Strictly Come Dancing on Friday night, kettles will be boiled, lights switched on and water company pumps powered up as toilets are flushed across the UK.

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Fermyn Woods, Northamptonshire I watch them through thickets of interwoven hazel and birch as they make their getaway

Crack! A stick snaps a little distance to my right. Too big a snap for a small animal. Probably deer-sized, I estimate. I wonder how close I can get to the originator before being detected in the wood’s growing afternoon gloom. I creep away from the muddy path, through snagging brambles and naked hazel. I have advanced 15 meters towards the target when I feel a stick give under my foot and an inevitable, and similar, “crack” resonates through the still hush. Instantly, three young roe deer start from cover 20 meters away; I watch them through, and between, thickets of interwoven hazel and birch as they make their unswerving getaway with a stiff, springing gallop.

My tracking skills are good enough to know how rudimentary they are. As a young lad I would, entranced, read Jim Corbett’s accounts of years spent pursuing man-eating leopards and tigers in the forests of India. Marvelling at how his corporeal self was absorbed into the forest. The meaning of every rustle, crack, bird call and grunt so familiar and significant that they keyed directly into his nervous system, and into that of the cat that was sometimes his quarry, sometimes his hunter, often both.

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Some dinosaurs shed their teeth as they grew up, according to fossil evidence.

Brazilian photographer Ricardo Stuckert captured amazing close-up photographs of an uncontacted Amazonian tribe after his helicopter flight took a detour to avoid a rainstorm and happened to fly over their longhouse

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This week, the Australian government announced plans that will ultimately require cars sold in Australia to match international fuel efficiency standards.

The resulting savings over the life of a typical vehicle would more than offset higher initial costs. The saving on fuel costs is estimated at up to A$28 billion a year by 2040.

Not coincidentally, this measure would also help to cut carbon dioxide emissions, which are currently growing at a rate that makes achievement of the government’s commitments for 2030 virtually impossible.

Up to speed

Putting Australia’s vehicle standards on a par with other developed nations sounds like such an obvious idea that we might ask why it hasn’t been done already. There are several reasons, although none of them can justify the years of inaction to date.

First, until quite recently, politicians were overridingly concerned with the fate of Australia’s domestic car manufacturing industry, which focused primarily on the production of large cars like the Holden Commodore and Ford Falcon. While fuel efficiency standards are designed to take account of a vehicle’s “footprint”, the domestic industry naturally saw the idea as an extra burden.

With the end of domestic production in sight, this issue becomes irrelevant. Indeed, you might think, given that Australia is now set to rely solely on imported cars, that we would automatically gain the benefits of international standards without needing to upgrade our own. But it turns out that imported cars sold in Australia are generally less fuel-efficient than cars of the same make and model sold in markets with more demanding standards.

There are several reasons for this. The most immediate is that it’s cheaper to make a less efficient car. New car buyers, particularly fleet buyers, are sensitive to the sticker price of the car but much less so to the running costs, most of which will be paid by others, including subsequent owners. So even though fuel savings outweigh the increased purchase price over the life of the car, it’s easier to sell a cheaper, less efficient version.

Another problem is that Australia also has lower standards for fuel quality, particularly sulfur content, which creates problems for more efficient vehicles. These standards will have to be revised soon for public health reasons, but until now the task of coordinating fuel efficiency and fuel quality standards has proved too difficult.

The government is now proposing to address both issues at the same time. The options are to reduce sulfur content for all kinds of petrol, or to phase out “regular” 91-octane fuel in favour of the more efficient, but more expensive, 95-octane.

Unsurprisingly, this measure is facing resistance from the Australian Institute of Petroleum, which is warning of the costs to Australian refineries. The institute can at least claim consistency here: it fought the removal of lead from petrol in the 1980s. More disappointing is the negative response of the Australian Automobile Association, which purports to champion sustainability but evidently thinks cheap petrol is more important than clean air or a stable climate.

The final problem is that there is a trade-off between fuel efficiency and perceived performance. This has led some manufacturers to “game” the regulations by producing vehicles that are fuel-efficient in lab testing but less efficient and more responsive on the road.

The most notorious case was that of Volkswagen, which installed special software to detect, and cheat, lab testing equipment. The resulting scandal cost chief executive Martin Winterkorn his job and has left the company flirting with bankruptcy.

Play by the rules

Of course, regulations of all kinds can be evaded. But the catastrophic consequences of being caught, as shown by the Volkswagen case, mean that manufacturers who want to stay in business will be more cautious in future.

Any policy to tackle climate change has costs as well as benefits. But there are few cases in which the balance is so clearly weighted to benefits. And with its 2030 climate targets in serious doubt, Australia needs to pick every piece of low-hanging fruit it can.

The only remaining issue is politics. The influential right wing of the Coalition government is dogmatically committed to climate science denial, and will oppose any measure to address the problem. Prime Minister Malcolm Turnbull has already collapsed spectacularly on the issue of an emissions intensity scheme for the electricity sector. That policy, like the fuel standards upgrade, came recommended by the Climate Change Authority (of which I am a member).

If Turnbull is to salvage any credibility, he needs to face down the opposition of ideologues and vested interests on this question. Whether he will do so remains to be seen.

John Quiggin is a Member of the Climate Change Authority. This article represents his personal views.

For the first time scientists have been able to track the high-flying insects that migrate across the skies of Southern England every year.

Giant clam shells seized by authorities in waters off Australia's north. NT government

High-value marine species in waters off northern Australia are at increasing risk of poaching by foreign fishing crews, according to figures from the Australian Fisheries Management Authority. The number of foreign fishing boats caught in Australian waters increased from six in 2014–15 to 20 in 2015–16.

These fishers have evidently come to poach species that fetch high prices and have been overfished elsewhere in the Asia-Pacific region. They seek “lootable resources” – species that are attractive to the black market because they are expensive, easy to catch and weakly regulated.

Among the species being targeted are sea cucumbers, giant clams, turtles and sharks (specifically their fins).

Many of these species are listed as vulnerable or endangered by the International Union for Conservation of Nature (IUCN). Some are even protected from trade by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

A long history of poaching

The apprehended vessels have been primarily from Vietnam and Indonesia. Last month, a Vietnamese fishing vessel stopped inside the Conservation Park Zone of the Coral Sea Commonwealth Marine Reserve was found to be carrying 3 tonnes of partially processed sea cucumbers. Dried sea cucumber, called bêche-de-mer, can fetch more than A$300 per kg when sold in China.

The Timor and Arafura Seas have long histories of illegal, unreported and unregulated fishing due to regional fishery expansion and displacement. Some scientists believe the tensions in the South China Sea are pushing Southeast Asian fishermen into Australian waters. It is also possible that Indonesia’s stricter fisheries policy is shifting fishing patterns in the region.

But apart from economic loss as resources are poached from Australian waters, what are the impacts? A new review shows that species such as sea cucumber can play crucial roles in boosting the health of coral reef systems. This is important at a time when reefs are facing intense stress from climate change and coastal development.

Nine species of sea cucumbers from Australian waters were recently declared threatened with extinction globally by the IUCN. Removal of some marine fauna might degrade the resilience of coral reef ecosystems to broad-scale stressors.

What can be done?

In June, Immigration and Border Protection Minister Peter Dutton said: “Preventing illegal fishers from plundering Australia’s well-managed fisheries is every bit as important as stopping the people smugglers and illegal arrivals.”

Although the Australian Border Force has the capacity to apprehend illegal fishing boats, much of the poaching happens on distant coral reefs. One problem is that illegal fishing boats can plunder lootable resources and get out of Australian waters before Border Force can reach them. So while regulation might be well enforced on reefs within the Great Barrier Reef, for instance, offshore reefs are comparably weakly regulated.

But stronger monitoring and enforcement might not be the only solution anyway. My team’s research, which involved interviewing sea cucumber fishers from Fiji, Kiribati, Tonga and New Caledonia, suggests that they see themselves as having few other livelihood options besides fishing. This means that even if their fishery collapsed or was closed down by authorities, they would simply move elsewhere or fish a different species.

Many fishers from Southeast Asia have doubtless been lured to poaching in Australian waters by similar issues. Curbing the rise in poaching therefore requires not only continued enforcement but also, crucially, foreign aid investment that can help these fishers to diversify their livelihoods.

Australia recently reshaped its foreign aid policy to focus predominantly on delivering “economic growth and poverty reduction”. Organisations such as the Australian Centre for International Agricultural Research (ACIAR) are investing in overseas research and development projects to provide more income-generating opportunities in fisheries and aquaculture. Support to Southeast Asian countries makes up 49% of the budget for fisheries and aquaculture projects.

Australia’s approach to reducing poaching of threatened resources should therefore be multifaceted. Helping foreign fishers deal with their own problems of overfishing by giving them more options to earn a living will ultimately help to tackle the root cause of marine poaching.

Steven Purcell receives funding from the Australian Centre for International Agricultural Research.

Hampus Eriksson participates in projects funded by the Australian Centre for International Agricultural Research.

Two baby orangutans have been rescued from the back of a taxi in Thailand.

New wind and solar farms, alongside wood burning and nuclear reactors, helped to push low carbon power to a new high in the third quarter of 2016

Half of the UK’s electricity came from wind turbines, solar panels, wood burning and nuclear reactors between July and September, in a milestone first.

Official figures published on Thursday show low carbon power, which has been supported by the government to meet climate change targets, accounted for 50% of electricity generation in the UK in the third quarter, up from 45.3% the year before.

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Route in Tourouvre-au-Perche cost €5m to construct and will be used by about 2,000 motorists a day during two-year test period

France has opened what it claims to be the world’s first solar panel road, in a Normandy village.

A 1km (0.6-mile) route in the small village of Tourouvre-au-Perche covered with 2,800 sq m of electricity-generating panels, was inaugurated on Thursday by the ecology minister, Ségolène Royal.

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The strongest El Niño on record reached its peak in the final months of 2015, but its devastating impact on global food and water supplies continues to be felt

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