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Britain has lost more than 70 percent of its cuckoos in the last 25 years, but tiny tracking devices fitted to some of the birds may have solved the mystery of their decline.

THE X FACTOR: An enormous X-shaped structure made of stars lies at the centre of the Milky Way, indicates a new study of infrared light coming from our home galaxy.

When Victorian Premier Daniel Andrews reshuffled his cabinet in May, most of the headlines were about Wade Noonan’s return after suffering mental health issues, and Lisa Neville who became the state’s first female police minister.

But from an environmental perspective there was another significant change. Energy and resources, long regarded as twin portfolios, were split. Instead, the energy brief was partnered with climate change and environment under a single minister, Lily D’Ambrosio.

On Monday, Prime Minister Malcolm Turnbull followed suit, creating a new super-portfolio of environment and energy, with Josh Frydenberg as the minister.

Linking policy development and decision-making for the energy and climate change portfolios makes sense. As a result of the historic Paris Agreement struck last year, the world – including Australia – is committed to achieving net zero emissions by 2050.

This calls for a major transformation, shifting the world’s energy away from fossil fuels and towards renewable sources like solar and wind, newer technologies such as wave and geothermal energy, and innovations like battery storage and energy demand management.

In that sense, energy and climate (and therefore the environment) go hand in hand. Decisions about energy sources have direct implications for our ability to deal with climate change. Conversely, decisions taken to reduce emissions will invariably impact on the energy portfolio. The two sectors have been crying out for better integration.

Many of the technologies needed to decarbonise our electricity system are already available. But we need to move faster. Our research at ClimateWorks Australia shows we will need at least 50% renewable electricity by 2030 if we are to decarbonise the electricity sector in time to avoid the worst effects of climate change.

This means we need policies that will push harder to help large-scale clean energy technologies reach the necessary level of commercialisation and integration.

Renewables and efficiency

Within these broad portfolios, there are particular policy areas that also need to be linked more closely with one another. In particular, renewable energy policy needs to be combined with measures to promote energy efficiency.

There is a natural synergy between renewable energy and energy efficiency, yet the two have never been systematically linked at either a national or state level. The better our energy efficiency performance, the less investment we need in new renewable energy sources to replace carbon-intensive ones. This in turn helps to lower the overall network costs and can protect households against rising power bills.

While unit prices of electricity are expected to rise as we modernise and decarbonise the energy system, household bills need not. If governments promote energy efficiency at the same time, households can reduce their energy use to offset the rising energy costs, keeping bills flat or even reducing them.

The lack of joined-up thinking between these two areas has led to missed opportunities. Some 1.5 million Australian homes have solar panels, thanks in part to the federal incentive scheme. Meanwhile, there are separate state-based incentive schemes for household energy efficiency. Why have these two never been linked? If solar panel installers could also provide household energy efficiency audits, householders could kill two birds with one stone and further reduce their demands on the electricity grid.

Household battery storage technology provides the next key opportunity to link installation incentives with renewable energy and energy efficiency. But this opportunity will again be missed if policies are not better integrated within the portfolio.

The National Energy Productivity Plan is a new policy with 34 measures aimed at improving energy efficiency. Frydenberg led this process when he chaired the COAG Energy Council last year. He has retained these responsibilities within his expanded portfolio, giving him a golden opportunity to take a truly integrated approach.

In the meantime, D’Ambrosio has taken the opportunity to review Victoria’s upcoming action plans on renewable energy and energy efficiency, to take advantage of the opportunity in her joint portfolio to ensure energy and climate policies have the close integration they need.

Whole-of-government support

Of course, integrating the energy and climate portfolios is not the whole solution. Cabinet support will still be needed to introduce integrated policies in other areas that are critical to hitting Australia’s emissions reduction targets. Examples include: putting specific regulations on emissions-intensive industries; creating market enablers for low-carbon technologies; ratcheting up green standards for buildings, vehicles and infrastructure; and ensuring planning approval systems are designed to take account of these targets.

The real work will need to happen in the federal government’s 2017 review of policies to achieve Australia’s Paris emissions target of 26-28% below 2005 levels by 2030. A recent Pricewaterhouse Coopers report found that “Australia will need to nearly double its historic rate of decarbonisation, to 4.4% annually”, if it is to meet even the lower end of this goal.

Ministers often talk about taking a “whole-of-government approach” to major issues. Yet plenty of silos still need breaking down if we are to achieve meaningful action on climate change.

The moves in both Canberra and Spring Street to bring environment, climate and energy under a single umbrella are a positive step towards better policy and real action. But, as ever, there is still plenty of hard work ahead.

Anna Skarbek is CEO of ClimateWorks which receives funding from philanthropy and project-based income from federal, state and local government and private sector organisations.

Government says carbon storage technology not cost-efficient, while critics say U-turn will double cost of tackling climate change

The government’s cancellation of a pioneering £1bn competition to capture and store carbon emissions may have pushed up the bill for meeting the UK’s climate targets by £30bn, according to a report from the UK’s official spending watchdog.

The National Audit Office (NAO) report, published on Wednesday, says the move has delayed by a decade the deployment of carbon capture and storage (CCS) technology in the UK, which takes emissions from power stations and industry and buries them so they do not contribute to global warming.

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Britain's roads, bridges, railways, hospitals, electricity, gas, water and internet remain at risk from floods, a government review will soon concede.

While 2016 has gotten a boost from an exceptionally strong El Niño, the record temps are mostly the result of accumulating greenhouse gases.

Lux Research report highlights oil's dominant position, fails to note electric cars are better vehicles in "almost every way."

Bolt Head, South Devon This Finnish windjammer loaded with thousands of tons of grain had reached Falmouth from south Australia in just 86 days

Eighty years ago the cliff-land here was thronged with curious sightseers, including my grandfather and uncle who drove from St Dominic to view the wreck of the Herzogin Cecilie with its masts towering towards the spectators. This Finnish windjammer – a four-masted barque loaded with thousands of tons of grain – had reached Falmouth from the Boston Island anchorage in south Australia in just 86 days, but on the last lap towards Ipswich it foundered on the Ham Stone off Soar Mill Cove.

Hosegoods, the Plymouth grain merchants, salvaged damp wheat, and my grandfather bought some cheaply for delivery to Cotehele Mill via the river Tamar and his barge, the Myrtle. It was mixed with extra-dry Persian barley, made into pig and poultry meal, and sold to local farmers.

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The Australia Institute says gas are generators are driving "obscene" power price spikes by choosing to exploit an energy market failure, rather than fulfil their role of complementing renewables.

Front page "exclusive" on The Australian about wind energy is so spectacularly wrong that it might make you laugh, were it not for the fact that so many conservatives swallow this tripe.

Solar power and battery storage are already challenging conventional electricity generation and distribution models. This transition to clean energy is happening in spite of government policy, not because of it.

Regulator report highlights monopolistic gas industry behaviour SA trying to fight. And where did 3,200MW of coal capacity go?

NRG Energy has completed installation of America's largest rooftop solar array: an 8.3MW system on MGM Resort's Mandalay Bay Convention Centre in Las Vegas that will supply 25% of the entire resort and casino complex's electricity.

ACT opens $2m pilot program to provide access to solar rooftop to those households least able to afford it – or high electricity bills.

US agencies Nasa and Noaa say last month was 0.9C hotter than the 20th century average and the hottest June since records began in 1880

As the string of record-breaking global temperatures continues unabated, June 2016 marks the 14th consecutive month of record-breaking heat.

According to two US agencies – Nasa and Noaa – June 2016 was 0.9C hotter than the average for the 20th century, and the hottest June in the record which goes back to 1880. It broke the previous record, set in 2015, by 0.02C.

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Engie may have put its Australian assets up for sale, including Hazelwood. Would AGL be interested in an asset swap and replace an ageing gas plant with renewables?

With the coal boom on the wane, mining companies want to escape the cost of rehabilitating their sites. But even if governments effectively restrain them, many of the huge voids in the landscape will never be filled in

Australia is teetering on the edge of a massive hole – one left by huge mines that may soon close. As they do, the country is playing a desperate game of catch-up to make sure the mining companies pay for the cleanup. But a legacy of limited environmental requirements means that even if that succeeds, the end of the coal boom will leave Australia pockmarked with unfilled holes.

This game has been highlighted in recent years by a trend of major miners unloading projects to industry minnows amid a coal slump. As they do so, taxpayers risk being lumped with cleanup costs in the wake of their collapse.

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NEW THEORY: Mounting evidence suggests the link between popular antidepressants and obesity should be investigated more closely as the rates for both grow, Australian researchers say.

Next month, the cruise ship Crystal Serenity will embark on a controversial voyage, becoming the first cruise liner ever to sail Canada’s Northwest Passage – a formerly icebound route that only became navigable in 2007. It’s a dramatic symbol of the change that is currently taking place in the Arctic, which is warming more rapidly than anywhere else on Earth.

This warming is already affecting polar bears, greening the tundra, and physically shrinking red knots. Now, in a new study, we show that it could contract the breeding habitat of millions of migratory birds that travel to the High Arctic.

Countries worldwide could see declines in the numbers of migratory birds reaching their shores, and the Canadian and Russian Arctic islands may be the last refuges these species have.

We studied migratory shorebirds, superstars of global migration that cover tens of thousands of kilometres a year, and sometimes travel more than 10,000km in a single flight. These amazing birds breed in the Arctic and then fly south, stopping at known refuelling points en route to their non-breeding grounds, some of them in the Southern Hemisphere. Protecting these ultra-mobile species that cross international borders is a particularly difficult conservation challenge.

Shorebirds are embattled by habitat loss and hunting along their migratory routes. Nowhere is this more apparent than the route used by species that migrate to Australia: the East Asian/Australasian Flyway. Most species that travel between Australia and the Arctic stop off at mudflats in the Yellow Sea off China. But coastal habitat there is being rapidly destroyed and population numbers are already crashing. The question is, how will climate change amplify the stress that these populations, and shorebirds globally, are already experiencing?

Researchers have investigated the possible effects of sea-level rise on shorebirds (answer: not ideal, because most species rely on coastal habitats) and how changing seasons could affect migratory timing (how do birds time their migration if snowmelt in the Arctic occurs earlier and earlier?).

But what about species distributions? To answer this question, we worked out the range of climatic conditions currently tolerated by 24 shorebird species that breed in the High Arctic tundra, and then used climate models to see whether these conditions are likely to still exist in 2070.

Our overall expectation was obvious: as the climate warms up, species globally are starting to track cooler climates towards the poles. But the issue for Arctic species is that they are already at the top of the world, with nowhere left to go. This means their habitat must necessarily contract, instead of shifting poleward.

This is exactly what our models predicted: climatically suitable conditions for breeding could shrink by more than half for 80% of species by 2070, and five species – Pacific golden plover, stilt sandpiper, curlew sandpiper, white-rumped sandpiper, and red phalarope – may have essentially no suitable conditions left at all.

In a double whammy for Australian shorebirds already struggling with Yellow Sea habitat loss, our results predict that their breeding regions in western Alaska and eastern Siberia are going to be hit the hardest by climate change too, with little or no habitat left for many species.

This is not the first time scientists have warned about the impacts of climate change on species diversity. Such warnings are often seen as vague premonitions of distant future threat, yet this year saw the first climate change-driven extinction of a species; suddenly it’s starting to feel very real.

Of course, species have dealt with changes in climate before; the last major warming period in the Arctic occurred 6,000-8,000 years ago. But that warming was gradual and happened in different regions of the Arctic at different times. In contrast, the current wave of warming is much faster and is happening throughout the Arctic, leaving species little time to adapt and nowhere to go.

Arctic Canada and the islands off northern Russia are predicted by our models to fare better than many other regions. Encouragingly, there are many protected areas in most places around the Arctic, with the exception of a clear gap in the Canadian Arctic, where resource exploitation is a growing threat.

Continued efforts to curb greenhouse gas emissions are crucial, and we must protect strategic locations to secure the future of Arctic biodiversity in a changing climate. With the right action hopefully we can see shorebirds continuing their incredible journeys for many years to come.

Hannah Wauchope receives funding from the Australian Research Council Linkage Project LP150101059 and the ARC Centre of Excellence for Environmental Decisions..

Richard Fuller receives funding from the Australian Research Council Linkage Project LP150101059 and the ARC Centre of Excellence for Environmental Decisions.

Last month was the hottest ever June worldwide, and the 14th straight month that global heat records have been broken, scientists say.