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Aigas Field Centre, Beauly, Highlands I am struck by the way the willow expresses the richness entailed in a drawn-out death

Just 10 minutes down the valley from this outstanding educational institute is the largest goat willow in Britain. The veteran is tucked away at the roadside amid a line of alders and so sunk in a deep and almost subaquatic gloom that you could easily miss it. A visit also requires a minor girding of loins to brave the midge-laden atmosphere, although meeting the tree on intimate terms is worth any amount of insect nuisance.

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Australians are used to seeing politics switch to vaudeville when it comes to climate policy. This year we’ve been treated to a new farce.

Belectric plans two more small solar farms by end of year after completing first with new, low cost installation system.

Invitation to comment on an application for a developmental wildlife trade operation under part 13A, section 303FN of the EPBC Act. Comments close 21 July 2017.

Turnbull caves in to fossil fuel lobby push for more "continuous power" and asks AEMO to assess needs of the grid. "It would be good to have a state of the art clean coal plant in Australia," he said.

All Ice Energy products now available in Australia exclusively through Apricus.

FELINE HISTORY: A new study on how cats conquered the world - and our hearts - has answered long-standing questions.

Australian Technologies Competition shortlists 32 of Australia’s “most exciting” tech companies, including an EV charging outfit, a solar thermal solutions company, and an energy monitoring specialist.

Scarce public finance should invest in generation assets of the future, not relics of the past at risk of being stranded.

Drought on wind and solar investment orchestrated by previous conservative state government now likely to be broken, with more than 1000MW of projects lined up.

Lyon Group announces another huge solar plus storage project, this time in Victoria, and unveiled plans to tender for contracts for battery services to underpin the investment and finalise the design of its three major projects.

Were green targets to blame for the Grenfell Tower fire tragedy? Murdoch columnists in Australia say so, but here's a debunk to this ugly nonsense.

A million-year-long period of volcanic activity led to the rise of the dinosaurs, a study suggests.

The sun rises above Uluru in outback Australia. David Gray/Reuters

Increasingly, our leaders talk of Australian values and presume that these arose organically, as though through some moral forge. An alternative view is that our national character and sense of identity have been shaped mostly by the land itself: we are a nation of individualistic, resilient and resourceful individuals because our land is isolated, expansive, capricious and unique.

Our country’s dust, drought, flood, blood and harsh beauty have made us what we are.

In a report published today, the Pew Charitable Trust compiled a series of perspectives on how people living in remote and rural Australia see their lives and country. We interviewed about 12 groups over the course of a year, trying to understand the intricate relationships between our people and our nature.

The core questions addressed in these accounts are simple. How do we see our land? How do we live in it? How do we care for it? How are we shaped by it? What do we value in it, or seek from it? And to what extent does the land now need us?

The responses were intriguing. For many Indigenous Australians, country is a defining feature, a place of belonging, imbued over countless generations with meaning and spiritual significance. For many other Australians living in remote regions, country still provides an embracing sense of place, a setting in which life can be meaningful.

“This place is where I feel safe and inspired and needed,” conservation manager Luke Bayley said of Charles Darwin Reserve. “I love the landscape – the big sky, the weathered rocks and the harshness; the beauty when it all comes together […] I also find it an endless journey.”

Although they may want different things from the land, miners, pastoralists, Aboriginal landowners, wildlife rangers and tourism operators all share some pivotal values, concerns and language.

All seek to treasure and maintain its productivity and health; all recognise the new threats that may be subverting it; all feel a sense of belonging and a responsibility to it; all appreciate the need to know how it works in order to draw benefit and sustenance from it; all see beauty and wonder in at least some of its constituent elements; all recognise the challenge of managing vast lands with few people; and, to some degree, all understand a mutual dependency between land and people.

This common ground provides a robust foundation for the collaboration and regional - or national - scale planning needed for the management of Outback Australia, with its unique challenges of complex environmental linkages across vast distances, pervasive threats and few management resources.

But the nuanced differences in perspectives are also important. Many living in Outback Australia identify strongly with other groups living on the land. But there is much scope – so far little developed – in remote Australia for increased recognition of the perspectives and expertise of others.

Most notably, there is extraordinary opportunity to bring together the intimate knowledge of country and its care held by Indigenous Australians with the often complementary strengths of land management based on western science. We can create distinctively Australian environmental management, based on intimate knowledge of country and the capacity to respond to its new threats.

A previous Pew study mapped the ‘Outback’ based on factors like low population density and infertile soil, and found it covered 73% of Australia. Pew Charitable Trust, The Modern Outback (2014)

Of course, there are also some notable inconsistencies among the perspectives we investigated, indicative of unresolved issues that need attention and a better process for conciliation or mutual understanding. For example, the values attributed to dingoes and wild dogs, and hence their management, remain highly polarised among people living in remote Australia. The elements of water and fire are pivotal in the Outback, and their use is often also contested.

Furthermore, just as our society has been moulded by our country, increasingly we are re-shaping the country, deliberately or inadvertently, expertly or ineptly. Across most of the world, biodiversity is in decline particularly in areas with high human population density and extensive habitat destruction.

The Australian outback is one of the world’s few remaining large natural areas, along with places like the Amazon Basin and the Sahara. Such areas are most likely to long support functional and healthy ecological processes and biodiversity.

However, somewhat counterintuitively, in much of the Outback, nature is in decline even in its most remote and sparsely populated regions. This decline reflects the loss from many areas of a long-established, intricate and purposeful Indigenous land management, that has long moulded its nature. Now, fire is often managed inexpertly or not at all, leading to uncontrolled and destructive wildfire. And the decline of biodiversity and loss of productivity in remote Australia is due also to the extensive spread of many pests and weeds introduced over the last century or so, and the inadequate resources committed to their control.

Inexorably, we will lose much that is special in our nature unless we can collectively address these causal factors and manage our lands more effectively. The land managers we talked to are skilled and willing, but they need more support.

One example is Les Schultz, a Ngadju elder from the country around Norseman in south-western Australia. He told us he wants to see the Great Western Woodlands managed properly, saying,

We will always be around, and it ticks all the boxes of everything good in terms of outcomes for Ngadju people and the general community …. We need Ngadju rangers with boots on the ground.

A similar call comes from some pastoralists, such as Michael Clinch from the Murchison region of WA. He inherited a land long over-exploited by unsustainable levels of grazing, and is now seeking new management approaches to to take his land on “a journey of redemption”:

The Outback, to me, is the cathedral of Australia. We’re desperate to reclaim the quality and value of the Outback, and to achieve that vision we need support … We’re not asking for a handout, but by jeez we’re asking for a hand up. We need assistance to rebuild and restructure our grazing. If we don’t do it, who the hell will?

The accounts showcase people at home in their country. Such accounts, of characters living in the bush, have long been emblematic for our nation. But these lives represent a diminishing minority of Australians.

In our increasingly urbanised society, for much of our nation’s population, the bush remains quixotic and unfamiliar, to be experienced superficially or fearfully. One objective of this collation is to allow urban Australians to see and feel the country through the eyes and hearts of those who are immersed in it.

We would like all Australians to more appreciate the care bestowed on our land by those who cherish it, the benefits we all derive from that care, and the need to better support those who seek to maintain our natural legacy.

We cannot live well in this land unless we understand it, and value it.

This article is based on Outback Voices, a report compiled by the Pew Charitable Trusts.

John Woinarski worked with Pew Charitable Trusts to contribute to a series on Outback Australia. He is currently a deputy director of the Threatened Species Recovery Hub, funded by the Australian government's National Environmental Science Programme.

The domestic cat is descended from wild cats that were tamed twice - in the Near East and then Egypt.

Rising temperatures are set to wipe out half of Ethiopia’s coffee-growing areas, with loss of certain locations likened to France losing a great wine region

Global warming is likely to wipe out half of the coffee growing area in Ethiopia, the birthplace of the bean, according to a groundbreaking new study. Rising temperatures have already damaged some special areas of origin, with these losses being likened to France losing one of its great wine regions.

Ethiopia’s highlands also host a unique treasure trove of wild coffee varieties, meaning new flavour profiles and growing traits could be lost before having been discovered. However, the new research also reveals that if a massive programme of moving plantations up hillsides to cooler altitudes were feasible, coffee production could actually increase.

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Study shows risks have climbed steadily since 1980, and the number of people in danger will grow to 48% by 2100 even if emissions are drastically reduced

• South-west heat wave: tell us how you’re keeping cool

Nearly a third of the world’s population is now exposed to climatic conditions that produce deadly heatwaves, as the accumulation of greenhouse gases in the atmosphere makes it “almost inevitable” that vast areas of the planet will face rising fatalities from high temperatures, new research has found.

Climate change has escalated the heatwave risk across the globe, the study states, with nearly half of the world’s population set to suffer periods of deadly heat by the end of the century even if greenhouse gases are radically cut.

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Any Brexit changes to the UK's wildlife laws will increase - not reduce - environmental protection, Michael Gove has pledged.

The release of the Finkel report has refocused national attention on climate change, and how we know it’s happening.

On a Q&A episode following the report’s release, Climate Council CEO Amanda McKenzie said we’ve seen:

… worsening heatwaves, hot days doubling in Australia in the last 50 years.

Excerpt from Q&A, June 12, 2017. Quote begins at 2:12.

Her comment provides the perfect opportunity to revisit exactly what the research says on heatwaves and hot days as Australia’s climate warms.

Examining the evidence

When asked for sources to support McKenzie’s assertion, a Climate Council spokesperson said:

Climate change is making hot days and heatwaves more frequent and more severe. Since 1950 the annual number of record hot days across Australia has more than doubled and the mean temperature has increased by about 1°C from 1910.

Specifically, there has been an increase of 0.2 days/year since 1957 which means, on average, that there are almost 12 more days per year over 35°C.

You can read full response from the Climate Council here.

How do we define ‘heatwaves’?

Internationally, organisations use different definitions for heatwaves.

In Australia, the most commonly used definition (and the one used by the Climate Council) is from the Bureau of Meteorology (BOM). It provided the first national definition of a heatwave in January 2014, describing it as:

A period of at least three days where the combined effect of excess heat and heat stress is unusual with respect to the local climate. Both maximum and minimum temperatures are used in this assessment.

The BOM uses a metric called the “excess heat factor” to decide what heat is “unusual”. It combines the average temperature over three days with the average temperature for a given location and time of year; and how the three day average temperature compares to temperatures over the last 30 days.

We can also characterise heatwaves by looking at their their intensity, frequency and duration.

Researchers, including Australian climate scientist Dr Sarah Perkins-Kirkpatrick, are trying to standardise the definitions of “heatwaves” and “hot days” and create a framework that allows for more in-depth studies of these events.

Are heatwaves ‘worsening’?

There’s not a large body of research against which to test this claim. But the research we do have suggests there has been an observable increase in the frequency and intensity of heatwaves in Australia. Research published in 2013 found a trend towards more heat waves in Australia between 1951 and 2008.

A review paper published in 2016 assessed evidence from multiple studies and found that heatwaves are becoming more intense and more frequent for the majority of Australia.

The following chart shows heatwave days per decade from 1950 to 2013, highlighting a trend toward more heatwave days in Australia over time:

We’ve seen a trend towards more heatwave days over Australia. Trends are shown for 1950-2013 in units of heatwave days per decade. Stippling indicates statistical significance at the 5% level. Adapted from Perkins-Kirkpatrick et al. (2017) Have hot days ‘doubled’ in the last 50 years?

While the number of “hot days” (as defined by the BOM) has not doubled over the last 50 years, as McKenzie said, the number of “record hot days” certainly has. “Record hot days” are days when the maximum temperature sets a new record high.

Given that McKenzie made her statement on a fast paced live TV show, it’s reasonable to assume she was referring to the latter. Let’s look at both figures.

The BOM defines “hot days” as days with a maximum temperature higher than 35°C. The BOM data show there were more hot days in Australia in 2013, 2014, 2015 and 2016 than in any of the 50 years from 1966 to 2016 (the last year for which data are available).

In fact, there were more hot days in the years 2013-2016 than in any other year as far back as 1910. If we compare the decades 1966-76 and 2006-16, we see a 27% increase in the number of hot days.

The following map shows the trend in the number of days per year above 35 °C from 1957–2015: Bureau of Meteorology

A 2010 Bureau of Meteorology/CSIRO report found record hot days had more than doubled between 1960 and 2010. That data was collected from the highest-quality weather stations across Australia.

Number of record hot day maximums at Australian climate reference stations, 1960-2010. Bureau of Meteorology 2010 Number of days in each year where the Australian area-averaged daily mean temperature is extreme. Extreme days are those above the 99th percentile of each month from the years 1910-2015. Bureau of Meteorology Why are heatwaves worsening, and record hot days doubling?

The trend in rising average temperatures in Australia in the second half of the 20th century is likely to have been largely caused by human-induced climate change.

Recent record hot summers and significant heatwaves were also made much more likely by humans’ effect on the climate.

The human influence on Australian summer temperatures has increased and we can expect more frequent hot summers and heatwaves as the Earth continues to warm.

Andrew King receives funding from the ARC Centre of Excellence for Climate System Science.

Climate Council CEO Amanda McKenzie, speaking on Q&A. Q&A

In relation to this article responding to Climate Council CEO Amanda McKenzie’s claim that heatwaves are “worsening” and “hot days” have doubled in Australia in the last 50 years, a spokesperson for the Climate Council gave the following responses. Questions from The Conversation are in bold.

Could you please provide a source, or sources, to support Ms McKenzie’s statement that heatwaves are “worsening” and hot days have doubled in the last 50 years?

Climate change is making hot days and heatwaves more frequent and more severe. Since 1950 the annual number of record hot days across Australia has more than doubled and the mean temperature has increased by about 1°C from 1910.

Specifically, there has been an increase of 0.2 days/year since 1957 which means, on average, that there are almost 12 more days per year over 35°C.

What did Ms McKenzie mean by the terms “heatwaves” and “hot days”?

Hot days – the number of hot days, defined as days with maximum temperatures greater than 35°C.

Heatwaves – three days or more of high maximum and minimum temperatures that is unusual for that location.

Furthermore, heatwaves have several significant characteristics. These include (i) frequency characteristics, such as the number of heatwave days and the annual number of summer heatwave events; (ii) duration characteristics, such as the length of the longest heatwave in a season; (iii) intensity characteristics, such as the average excess temperature expected during a heatwave and the hottest day of a heatwave; and (iv) timing characteristics, including the occurrence of the first heatwave event in a season.

Is there any other comment you would like us to include in the article?

Climate change – driven largely by rising atmospheric carbon dioxide concentrations from the burning of coal, oil and gas – is increasing temperatures and cranking up the intensity of extreme weather events globally and in Australia.

The accumulating energy in the atmosphere is affecting all extreme weather events. Climate change is driving global warming at a rate 170 times faster than the baseline rate over the past 7,000 years.

Temperature records tumbled yet again during Australia’s ‘Angry Summer’ of 2016/17. In just 90 days, more than 205 records were broken around Australia.

Heatwaves and hot days scorched the major population centres of Adelaide, Brisbane, Canberra, Melbourne and Sydney, as well as the rural and regional heartlands of eastern Australia. The most severe heatwave of this Angry Summer began around January 31 and continued until February 12, with the highest temperatures recorded from February 9-12.

This heatwave was made twice as likely to occur because of climate change, while the extreme heat in New South Wales over the entire summer season was at least 50 times as likely to occur because of climate change.

The severe heatwave of February 2017 that spread across much of Australia’s south, east and interior caused issues for the South Australian and New South Wales energy systems. In New South Wales around 3,000MW of coal and gas capacity was not available when needed in the heatwave (roughly the equivalent of two Hazelwood Power Stations).

In South Australia, 40,000 people were left without power for about half an hour in the early evening while temperatures were over 40°C. This heatwave highlights the vulnerability of our energy systems to extreme weather.

Read the article here.