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A six-month-old male Goodfellow’s tree kangaroo hides in its mother’s pouch at Perth zoo. The joey is the first of the endangered species – which originates from the rainforests of Papua New Guinea – to be born at the zoo in 36 years and is one of only 15 male tree kangaroos in the breeding program globally

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Solar Impulse 2 lands in Seville, four days after setting off New York, using solar panels and batteries to finish latest leg of its round-the-world journey

Solar Impulse 2 has completed the first ever crossing of the Atlantic by a solar-powered aeroplane, landing in Spain early on Thursday morning.

The four-day trip, which started in New York, was the latest leg of a round-the-world journey due to end in Abu Dhabi.

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Sandy, Bedfordshire A queen hit the bullseye – a 2.8cm hole in our nestbox – and there is a clearly active colony of tree bumblebees in residence

Since the start of the millennium, a new tune for summer has been spreading north. It was first picked up in Wiltshire; within a decade, it had reached southern Scotland. I can hear it from the bathroom, the bedroom, or standing under the eaves at the back door. The sound is not discernibly different from that made by the maker’s nearest relatives, though the animal’s habits certainly are.

We know this newbie as the tree bumblebee. Common on the continent, it flew the Channel, as wild creatures are apt to do, though we rarely understand why they choose a certain time to move. Most bumblebees nest underground. The tree bumblebee, with a taste for high living, has taken to birdboxes.

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Wherever you are in the world, if you are running or participating in food waste projects we’d like to hear from you

Almost $1 trillion in food is thrown away, lost or wasted every year worldwide - roughly one third of all food produced for human consumption. Food such as fruits and vegetables, plus roots and tubers have the highest wastage rates of any food.

Around half of us go by the date label printed on the packaging of food and will often throw away food that is safe to eat. According to the Waste Resources Action Programme (Wrap), an organisation that promotes sustainability, we throw away 4.2m tonnes of food every year in the UK, which, aside from the financial costs, has a huge impact on the environment.

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Antimatter isn't just a great plot device for sci-fi stories. It's at the heart of one of the great mysteries in modern physics - why our universe has stuff in it.

The growth of border fences in Central and Eastern Europe in recent years is a "major threat" to wildlife, according to a new study.

How a shipping container became a last sanctuary for one of the world's most endangered amphibians, the mountain chicken frog.

It's quiet out there, too quiet. Outback image from wwww.shutterstock.com

There’s a deafening silence in the ongoing Australian election campaign over the environment. Polling shows increasing public support for greater action on climate change but debate has been mostly missing.

And despite some blows traded over the Great Barrier Reef, the wider environment has made almost no appearance. But this hasn’t always been the case.

From the origins of the environmental movement in the 1970s to the 2007 climate change election that toppled Liberal prime minister John Howard, the environment has been a key battleground, and it could become one again.

Green origins

The environment first emerged as a voting platform in the 1970s, in the wake of controversial proposals to dam Lake Pedder. The United Tasmania Group - a precursor to the Australian Greens party - was formed to oppose the project.

Were it not for the mysterious disappearance of a plane carrying environmental activist Brenda Hean in September 1972, the election that brought us Labor prime minister Gough Whitlam might have had more of a green tinge. Hean’s plan was to sky-write “Save Lake Pedder” over Canberra.

According to Hugh Morgan - former president of the Minerals Council, the Business Council, and the climate-denying Lavoisier Group - the first indication that environmentalism had arrived as a major political force in Australia was the Whitlam Labor Party caucus’s 1975 debate over uranium mining and nuclear power.

But it was not until the 1983 election, with incumbent Liberal prime minister Malcolm Fraser facing off against Labor leader Bob Hawke, that the environment became politically salient with another Tasmanian dam.

After losing the Lake Pedder battle in 1972, the green campaigners were older, wiser and more determined in their fight to stop the Franklin dam.

Fraser offered the Tasmanian government a A$500m coal-fired power station instead of the dam, but was rejected.

Labor said it would use federal powers to forbid the dam if elected. It did so, and won the inevitable High Court case.

Hawke and Paul Keating, prime minister from 1991, prioritised financial and political changes (bringing down tariffs, floating the dollar) over environmental challenges. However, the issues of logging and uranium wouldn’t go away, and were joined first by ozone and then carbon dioxide.

In 1984, with a tight election looming, Hawke failed to make the Queensland government’s refusal to nominate forests for World Heritage listing an issue.

Labor won the 1987 and 1990 elections, and environmentalists’ preferences helped them squeak home on both occasions. Climate change hardly rated a mention.

Conned by greenies?

With their rising power, both sides of politics initially courted green voters. But this tactic quickly fell out of favour, first with the Liberals and then with Labor. In 1992 the Greens, despairing of being able to influence either of the big parties, formed their own.

By late 1992, Keating was lashing out at green groups, saying:

…the green movement was extremist and not listened to any more … The environmental lobbies have no moral lien over the environment. The issue belongs to the Government, to the nation.

It’s perhaps unsurprising then that, according to a source of scholar Joan Staples, Keating reportedly walked into an election planning meeting and announced that “the environment will NOT be one of the priority issues in this election.”

A “bomb” planted on a railway line in northwest Tasmania two days before the 1993 federal election suggested otherwise (it didn’t have a detonator). While media and politician accused “ecoterrorists”; Bob Brown suggested at the time and since that it was a setup to thwart public favour for the Greens.

Nothing changed under the next three year’s of Keating’s government. Another source of Joan Staples recalled that when Keating met green groups before the 1996 election, he walked into the meeting room and pointed at each representative, saying: “Don’t like you. Don’t like you. Don’t know who you are. Don’t like you. She’s alright.”

Despite climbing greenhouse emissions and international pressure on Australia, the environment didn’t feature in the 1998 or 2001 elections, and made only a small but perhaps crucial appearance in 2004 around forestry.

The greatest moral challenge

Liberal prime minister John Howard was unable to ignore the environment three years later. Upon becoming opposition leader in late 2006, Kevin Rudd made climate change not just an issue but “the greatest moral challenge of our generation”.

Howard, who had already tried to keep climate change in a box by reaching for the nuclear option, the Asia Pacific Partnership for Clean Development and Climate and even emissions trading, had no effective reply.

The 2007 federal election, at which Howard became only the second sitting prime minster to lose his seat, has been called, with some justification, “the first climate change election”.

Despite the blood and ink spilt over climate change, it was strangely absent from the 2010 campaign, from which Labor prime minister Julia Gillard eventually emerged victorious. As Laura Tingle has said “it [climate change] wasn’t really something that ever really featured … it just wasn’t there”.

In truth, Gillard had floated a much-derided Citizen’s Assembly ahead of the election. Three years later, despite opposition leader Tony Abbott proclaiming the 2013 poll as a carbon tax referendum, researcher Myra Gurney has found climate change actually rated surprisingly few mentions.

Why the silence?

Besides international positions on climate change, there are any number of local environmental flashpoints that could blow up any day – the Carmichael mine, fracking in New South Wales, or something currently regarded as trivial.
“The environment” has been around as political issue for more than 30 years, and isn’t going to go away, as the environmental and social stresses grow, and the institutional responses lead to “creative self-destruction”.

No doubt both parties will fall over themselves to spruik their support for renewable energy, which is akin to motherhood and apple pie.

What is striking about the history of climate change and federal politics is just how quiet politicians become once they get into campaign mode and face scrutiny for the specifics of their policy proposals.

Perhaps they simply have no answers to awkward questions of what we do to replace our fossil fuel infrastructure and the power of the fossil fuel lobby.

Marc Hudson 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.

Australia's Renewable Energy Target was reduced in 2015. Wind turbine image from www.shutterstock.com

With the Australian federal election just over a week away, it’s a good time to review the key milestones in Australian climate policy since the last federal election in September 2013.

After winning office, the Abbott government successfully repealed the “carbon tax”. However, an eclectic group of senators banded together to thwart attempts to remove other elements of Julia Gillard’s carbon price package, including several influential climate change agencies.

Heading into the July 2 election, both parties are clear on their climate policy platforms, committing to distinct approaches to meet international and domestic obligations.

Labor has pledged to establish two emissions trading schemes and achieve a goal of 50% renewables by 2030. While the Coalition, under prime minister Malcolm Turnbull, is standing by its Direct Action plan and the pursuit of technological innovation.

The timeline below highlights Australian climate policy interventions from the past three years. A more comprehensive survey of the climate and clean air policy landscape since the last election is detailed in a working paper from the Australian-German Climate and Energy College.

The timeline below is best viewed on a full screen browser window. To navigate, click on the arrow on the right to move forward (and on the left to move back).

Annabelle Workman receives funding to undertake her PhD through a Strategic Australian Postgraduate Award scholarship. She has been an employee of the National Health and Medical Research Council, and is affiliated with the Climate and Health Alliance.

Anita Talberg is on an Australian Postgraduate Award PhD scholarship.

If tests of the 100m-long barrier that collects rubbish on the sea’s surface are successful, it could be deployed at a larger scale in the ‘great Pacific garbage patch’

A bid to clear the Pacific of its plastic debris has moved a step closer with the launch of the biggest prototype clean-up boom yet by the Dutch environment minister at a port in The Hague.

On Thursday the 100m-long barrier will be towed 20km out to sea for a year of sensor-monitored tests, before being scaled up for real-life trials off the Japanese coast at the end of next year.

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Some conservationists say endangered birds at the South African reserve take priority, but others argue that locally the big cat is rarer

A leopard killed dozens of endangered penguins at a nature reserve outside Cape Town earlier this month, prompting a renewed debate about how best to protect South Africa’s threatened species.

Ranger Cuan McGeorge found the bloodied, lifeless bodies of 33 African penguins on 11 June scattered across Stony Point, a reserve at the sleepy holiday town of Betty’s Bay that protects one of just four mainland breeding sites.

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The zero-fuel aeroplane, Solar Impulse, is aiming to complete its Atlantic crossing on Thursday with a landing in Seville.

Plans to open a new mine have been criticised by local residents and NGOs for contradicting government commitments to reduce greenhouse gas emissions and phase out coal, reports ENDS

A new surface coal mine could be created on the scenic Northumberland coast if an application is approved next month.

Banks Mining wants to create a three million tonne (Mt) opencast mine which will operate for seven years from an area of 250 hectares at Druridge Bay, between Widdrington and Cresswell.

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Scientists discover corals that look healthy but cannot reproduce, dashing hopes such reefs could repopulate bleached areas

Zombie corals, which look healthy but cannot reproduce, have been discovered by researchers, dashing hopes that such reefs could repopulate areas destroyed by bleaching.

Scientists have also found that a common ingredient in sunscreen is killing and mutating corals in tourist spots.

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As sightings in populated areas increase, authorities are trapping leopards and keeping them captive, often in small cages without adequate food. The solution is to educate the public on coexisting with the big cats, reports Environment 360

When an escaped leopard tackled a man at a poolside on a school campus in the southern Indian city of Bangalore early this year, the video went viral. The victim was one of the wildlife managers trying to recapture the animal. His colleagues finally managed to tranquilize it late that night and return it to a nearby zoo that was serving as a rescue center for a population of 16 wild-caught leopards. A week later, the leopard squeezed between the bars of another cage and escaped again, this time for good.

All the news and social media attention focused on the attack – and none on the underlying dynamic. But that dynamic affects much of India. Even as leopards have vanished in recent decades from vast swaths of Africa and Asia, the leopard population appears to be increasing in this nation of 1.2 billion people. The leopards are adept at living unnoticed even amid astonishingly high human population densities. But conflicts inevitably occur. Enraged farmers sometimes kill the leopards. Trapping is a standard response, but religious and animal rights objections have made euthanasia for unwanted animals unthinkable.

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Australia’s third longest river, the Darling river, has been suffering from low flow for many years. Wilcannia residents say the river system has been mismanaged and problems will affect future generations. Led by the local Barkindji people, approximately 100 protestors blockaded the Barrier Highway, which crosses the river, at the weekend, to highlight their concerns

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Queensland government’s $7m purchase aims to cut back on sediment flowing on to the reef, where it can smother coral and prevent its recovery from bleaching

Environment groups are applauding a “fantastic move” by the Queensland government to protect the Great Barrier Reef by buying a Cape York cattle station responsible for a disproportionate amount of pollution that flows on to the reef.

The Queensland government has spent $7m buying the 560 sq km Springvale Station, situated south of Cooktown, the ABC reported on Wednesday.

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In the 1990s almost all rubbish in the UK went to landfill. Today nearly half of household waste is recycled, thanks to EU legislation

We recycle and compost far more in Britain today than at the turn of the millennium.

Recycling targets come from Europe, and are the result of decades of directives from Brussels to reduce the environmental harm from our rubbish.

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Wenlock Edge There is something about the wildness of the dog rose, the way it stands outside cultivation with a beauty that inspires so much imitation

Days of rain and wild roses, a very British June. After the breathless spell of hot weather and sunshine, the showers were inevitable. Although some have been gently summery – good growing weather, as gardeners say – many have been epic downpours, looming like fantastical cities of cloud, bursting into tempests, thunder and lightning, cats and dogs, stair-rods, flash floods.

Sometimes the whole Wagnerian spectacle comes and goes in minutes, fascinatingly local when a mile or two down the road remains bone dry. The weather feels personal, purging, and inside the storms is another, existential world. Or that’s how it felt, broken down on the motorway. Mercifully, we were in a service station car park, and once the vehicle was fixed enough to get us home, we churned through the carwash of motorway spray back to Wenlock.

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The next phase of a national citizen science project is looking into which bird species are visiting backyard bird feeders