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The eyeless subterranean salamanders that live in the watery depths of Postojna Cave are under threat – but there’s hope in sight

Postojna Cave in Slovenia is one of Europe’s longest cave networks and one of the world’s most spectacular subterranean tourist sites. Hundreds of thousands of visitors come here every year to gaze at its wonders: its huge stalactites and stalagmites, its curtains of coloured rock and bridges that have been carved out of the local limestone by the river Pivka over millions of years.

Given such glories, it is not surprising that few tourists take note of the two concrete huts draped with black polythene that have been erected in a shadowy alcove in one obscure part of the 24km-long labyrinth. But the huts contain wonders of their own. In racks of trays of water, scientists have placed specimens of one of the world’s strangest creatures: the blind aquatic salamander Proteus anguinus – or olm, as it is known locally. It constitutes a project that could have profound implications for the future of these remarkable creatures.

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The zero-waste revolution has been postponed, except on Instagram. But there are some constructive steps to be taken

I’ve been hearing about a “zero waste” world for half my life. What would it look like? It would be rubbish-free for starters, no more single-use plastic being shovelled into landfill. Shelves would be full of intelligent products designed to have a second useful life. Materials that couldn’t be reused would gently turn into compost, nourishing the earth as they broke down.

The high priestess of waste-free living is Californian Bea Johnson, whose home produces remarkably little waste

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Norway wants urban gardeners to cultivate wildflowers and keep hives to reverse a decline in biodiversity

On a sloping meadow near the centre of Oslo, red-tailed bumblebees gather pollen from hairy violets, spiders spin webs between maiden’s tears while hoverflies buzz between yellow daisies and white yarrow.

Such a bucolic scene might normally be associated more with a rural past than an urban future, but it is part of a thoroughly modern attempt to reverse the decline of bee populations and put biodiversity at the heart of city planning in Norway’s capital.

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Put aside your urban comforts, feel the soil beneath your feet, and push out into the wild.

Native Americans and environmental advocates get help from outdoor retailers as they battle proposal to change monuments’ boundaries

Environmental activists, Native American groups and a coalition of outdoor retailers have vowed to redouble their efforts to protect public lands, after the US interior secretary, Ryan Zinke, recommended on Thursday that Donald Trump change the boundaries of a “handful” of national monuments.

Related: US public lands: Trump official recommends shrinking national monuments

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Ryall, Dorset The wax cells are studded with pollen gems in carnelian, citrine, garnet – an almanac of the seasons

The bees think it’s autumn. Since mid-July they have been reducing their numbers and sealing up the hives with propolis. Dark brown, sticky when fresh, brittle as cinder toffee when dry, propolis is a glue bees make from tree sap. It’s antimicrobial and despite its bitter taste some beekeepers chew it as a remedy for a sore throat.

Bees use propolis to fill small gaps in the hive and to mummify any invaders that are too big for them to carry outside. Occasionally, you find a dead mouse inside a hive its body shrouded in propolis, pieces of varnished bone showing through as if fossilised. The ancient Egyptians revered bees and it is thought they might have learned the principle of mummification from them.

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An Institute of Public Affairs-sponsored journal article has been seized on by conservative media outlets. But there are a few problems

People who work for climate science denial thinktanks tend not to spend all that much time worrying about getting stuff into scientific journals.

Perhaps because it’s easier, people who are paid to tell the public and policy makers that human-caused climate change is overblown bunk would rather pump out newspaper columns, do softball interviews or push out their own self-published reports. There’s a lot less scrutiny in that kind of public relations.

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A recently released Harvard University study claims ExxonMobil have misled the public over climate change.

Citizen scientists looks for new species; find out what it's like to be a rodeo clown; we make fruit and vegetable bouquets; and go tractor trekking in the footsteps of Burke and Wills.

Each year the keepers at the zoo record the animals’ vital statistics to monitor their health and general wellbeing

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Police call for cull shooters to be given same hi-tech system they use – but activists buy counter-devices to disrupt shooting

Hundreds of thousands of taxpayers’ pounds have been spent on equipping badger cull marksmen with radios that link them directly to police, the Guardian has learned.

Police have advised the government to invest in the same communications system they use to make it easier for officers to get to conflicts with cull saboteurs in remote areas where the mobile phone signal is poor.

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The sight, off the coast of Florida's Anna Maria Island, was filmed on Thursday afternoon.

A new citizen science survey aims to shed light on that fixture of summertime in the outdoors: the wasp.

A huge rockfall in Val Bondasca raises questions about how climate change is affecting the Alps.

Proposals to expand the A3 at a junction with the M25 could mean the loss of 500 trees at the Royal Horticultural Society Garden Wisley.

A shag in the Farne Islands, coral reefs in recovery in Belize, and a fox near Chernobyl are among this week’s images from the natural world

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What do you do if smog has made your fields unfit for grazing? Put sculptures of sheep on them instead. Lu Guang’s shot of phoney livestock in China is just one of many intriguing images from the International Festival of Photojournalism in Perpignan, France

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Paula Kahumbu: The sale of rhino horn in South Africa won’t help save rhinos, but it will benefit organised crime

South Africa has just launched the first ever legal rhino horn auction. If you are based in South Africa and would like to buy some rhino horn you can place your bid here.

This is not a government auction, although it is sanctioned by the South African government. It has been organised by private rhino rancher, John Hume, who took the government to court and won the right to sell 265 rhino horns weighing about 500 kg. Trade in rhino horn is illegal in most countries, but the black market value of one kilogram is said to be USD 100,000—more than the price of platinum.

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West Knoyle, Wiltshire It skitters up the fabric to the pinnacle, dropping down several feet then looping back up again, and again, and again

Taking respite from the hubbub of milling outdoor and bushcraft enthusiasts attending the Wilderness Gathering, I lie back under the shade of a conical bell tent. Gazing upwards into the canvas peak I watch a wasp skittering up the ivory fabric to the pinnacle, dropping down several feet then looping back up again, and again, and again.

Related: Conservationists slam 'hateful' survey promoting wasp killing

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Solar panels are still a rarity in WA's lower-income areas. Orderinchaos/Wikimedia Commons, CC BY-SA

Many Western Australian householders are living in “energy poverty”, according to our new Bankwest Curtin Economics Centre research report, Power to the People: WA’s Energy Future.

Although average household spending on electricity, gas and heating is no more than 4% of income, the figure rises considerably for those on lower incomes. In particular, more than a quarter of single-parent families say they spend more than 10% of their income on energy.

Single parents in particular are far more exposed to energy poverty, a trend that has grown over the past 10 years. Around one in ten of these households spends at least 15% of their income on energy costs. In some cases, this forces them to compromise on other essentials such as food and health care.

Read more: Five things the east coast can learn from WA about energy

Rising energy costs, as well as a personal commitment to reducing greenhouse gases, are motivating many WA households to vote with their feet (or wallets) and adopt rooftop solar photovoltaic (PV) panels at a dramatic rate.

In WA, the installed capacity of rooftop solar PV has grown by 37% in the past 18 months alone. Around 25% of suitable dwellings are now fitted with solar panels. This takes WA to third place among Australian states, behind Queensland (32%) and South Australia (31%).

If this trend continues, the state’s rooftop solar PV capacity is predicted to exceed 2,000 megawatts by 2022. That’s larger than all but one of WA’s power stations.

Generating capacity from WA rooftop solar, 2016 to 2022 Projections are based on predictions from a log linear regression of total MW of rooftop solar PV capacity, and reflect the growth both in the number of installations and the average MW output per solar PV installation. Bankwest Curtin Economics Centre/Clean Energy Regulator

Similar trends are predicted at a national level, with consumer-bought rooftop solar PV expected to account for around 24% of electricity generation by 2040. This is set to make Australia one of the most decentralised electricity networks in the world, with 45% of its total generating capacity coming from “behind the meter”.

Haves and have-nots

Rooftop solar is a popular option, but not all households are able to take advantage of this technology. Our report reveals a clear socioeconomic gradient in household solar installations in WA.

Panels are fitted to only 7.4% of suitable homes in areas in the lowest 10% on socioeconomic indicators. That figure rises to 16% in the next-lowest 10%, and the gap widens still further as income rises. Solar installation rates are around 30% in mid-to-high socioeconomic areas.

Share of suitable WA homes with solar panels, by level of socioeconomic disadvantage Homes deemed suitable for solar PV include detached, semi-detached or terraced houses, but not strata-titled apartments or units. Bankwest Curtin Economics Centre/Clean Energy Regulator/ABS

Better incentives could boost these numbers, especially in poorer areas. The initial upfront costs deter many homeowners, while most landlords have little financial motivation to install solar on rental properties.

Read more: Poor households are locked out of green energy, unless governments help

Accessible, secure and affordable energy is essential to any well-functioning economy. And many citizens, communities and governments are acting on the imperative to move to a greener source.

Despite its huge amounts of wind and sunshine, WA lags behind other states both in committing to a clear renewable energy target and in its investment in large-scale renewable power projects.

Renewable projects under construction or at commissioning stage in 2017 Projects at the commissioning phase at the end of 2016 are not included in the total new capacity figure. Investment in the South Australia Hornsdale Wind Farm includes stages 1, 2 and 3. Data for ACT and NT not available; ACT is expected to draw most of its renewable energy from other states and territories. Bankwest Curtin Economics Centre/Clean Energy Council Australia/various other sources

According to our report, WA’s total greenhouse gas emissions in 2015 were 86.5 million tonnes of carbon dioxide equivalent – fourth-ranked behind Queensland, New South Wales and Victoria. This means WA contributed 16.1% of Australia’s national emissions that year.

But while other states and territories have adopted proactive emissions-reduction policies such as state-based renewable energy targets, WA has not yet taken substantial action on this front.

Read more: The solar panel and battery revolution: how will your state measure up?

Here’s the likely game-changer: efficient, cost-effective battery storage that can deliver power at the scale required. Storage is set to become vital, both for smoothing out domestic power consumption from solar panels and for large-scale electricity generation. The Finkel Review has recommended that all future renewable energy projects be required to produce “dispatchable” power – that is, be able to store their power and release it at times of higher demand.

Greater efficiency in balancing energy demand over the course of the day, and across large-scale grid systems that feature a range of different weather conditions, is also likely to help overcome the intermittency problems associated with renewable sources.

Australia is on the cusp of an energy revolution, and the pace of change is only going to increase. WA, like every state, needs a clear roadmap to navigate the journey effectively, one that integrates existing and emerging energy technologies and maintains protections for families who cannot currently afford solar panels.

This will give greater certainty to the energy future we can all expect – and, critically, ensure that no one is left behind.

Rebecca Cassells is a Principal Research Fellow with the Bankwest Curtin Economics Centre. The Bankwest Curtin Economics Centre is an independent economic and social research organisation located within Curtin Business School at Curtin University. The Centre was established in 2012 with support from Bankwest (a division of Commonwealth Bank of Australia) and Curtin University. The views in this article are those of the authors and do not represent the views of Curtin University and/or Bankwest or any of their affiliates.

Alan Duncan is Director of the Bankwest Curtin Economics Centre. The Bankwest Curtin Economics Centre is an independent economic and social research organisation located within Curtin Business School at Curtin University. The Centre was established in 2012 with support from Bankwest (a division of Commonwealth Bank of Australia) and Curtin University. The views in this article are those of the authors and do not represent the views of Curtin University and/or Bankwest or any of their affiliates.

Yashar Tarverdi is a Research Fellow at the Bankwest Curtin Economics Centre. The Bankwest Curtin Economics Centre is an independent economic and social research organisation located within Curtin Business School at Curtin University. The Centre was established in 2012 with support from Bankwest (a division of Commonwealth Bank of Australia) and Curtin University. The views in this article are those of the authors and do not represent the views of Curtin University and/or Bankwest or any of their affiliates.