Imagine my shock when I discovered today that Chris de Freitas — the Auckland University academic who hit the news a couple of years ago when it was found that he was teaching climate denial to first year students, but who has a 20 year history of advocating for inaction on climate change — had made headlines by telling lies to a TV news operation. The headline: Kiwi scientist: Climate change not to blame for heatwaves. For a while it was top story on the TV3 News web site. Here’s how the story opens:

A New Zealand scientist has denied popular claims the recent Australian heatwave and other extreme weather events around the world are linked to global warming.

Here’s where de Freitas plays fast and loose with the facts:

The Australian government’s Climate Commission released a report last week stating: “climate change has contributed to making the current extreme heat conditions and bushfires worse”.

But associate professor of climate and environment science Chris de Freitas, from the University of Auckland, says this is not the case.

“There is no evidence to suggest that,” he says. “It’s really [just] hype.”

There’s the lie. De Freitas states without qualification that there’s “no evidence”. And yet the Australian Climate Commission’s report on the subject, prepared by three scientists with a great deal more experience and scientific mana than junior geographer de Freitas, states:

Climate change has contributed to making the current extreme heat conditions and bushfires worse.

The report provides a long list of peer-reviewed scientific studies to support its conclusions. But de Freitas keeps on digging a hole for himself:

Dr Freitas says the earth actually hasn’t warmed for at least a decade, and scientists do not know enough about climate change to tell if carbon dioxide emissions could cause large or damaging changes.

“There’s no evidence to suggest that what we’re doing is creating dangerous change.”

Tell it to the firefighters, Chris. Tell it to the people of Dunalley. Tell it to the Australian people suffering as climate change comes home to roost.

There are several questions that have to be asked about this “news” item. Why did TV3 go to de Freitas for a story in the first place? Was de Freitas touting his contrarian lies to the media, or were his friends at the NZ Climate “Science” Coalition, where he rejoices in the role of “science adviser”, pushing his views to news operations running short-staffed during the summer break?

Auckland University, which allows de Freitas to teach rubbish to its students under the guise of academic freedom, has to ask itself if it can really stand behind an employee who so egregiously lies in public. Academic freedom should be cherished, but allowing de Freitas’s nonsense to go unchallenged devalues the very notion, and diminishes the university’s hard won reputation as a centre of academic excellence.

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Saturday’s New Zealand Herald carried an astonishing editorial on climate change — remarkable enough to prompt me to tweet that it was “crass, complacent and so very wrong“, despite it being ostensibly in support of action on climate change. The piece begins by riffing on the wildfires in Australia, before observing:

With Australia having its two hottest days on record this week, and New Zealand enjoying a hot summer, it feels like climate change has arrived. But most scientists are wary about attributing any particular weather to global warming. To cite this summer as evidence would enable sceptics to recall last January’s washout.

“Most scientists” are being anything but wary about discussing the link between the Aussie heatwave and climate change. Australia’s Climate Commission released a special report on the heatwave at the end of last week. Here are the first three “key points” from the report:

  • The length, extent and severity of the current Australian heatwave is unprecedented in the measurement record.
  • Although Australia has always had heatwaves, hot days and bushfires, climate change is increasing the risk of more frequent and longer heatwaves and more extreme hot days, as well as exacerbating bushfire conditions.
  • Climate change has contributed to making the current extreme heat conditions and bushfires worse.

Straightforward enough, you might think. Climate change is making the heat and fires worse. But if the Herald editorial writer might be forgiven for missing a major report from the Australian body tasked with informing that nation about the realities of climate change, he or she cannot be forgiven for the astonishing complacency evident in the next few paragraphs.

[now read on…]

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Still warming after all these years (again)

by Gareth on January 10, 2013

Spread this excellent new video from the talented team at Skeptical Science far and wide. It explains why the latest denialist trope — no warming for 16 years — is rubbish. Take out the impact of the three biggest factors driving natural variations in the global average temperature — volcanoes, the El Niño Southern Oscillation and the solar cycle — and what’s left is the underlying upwards trend being driven by our CO2 emissions. The world’s warming, Australia’s burning, ice is melting and we did it. No room left for wishful thinking or complacency.

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BOMcolours

Australia is gripped by a massive heatwave, records are tumbling and fires are burning across the continent. I’m not going to attempt a comprehensive post on the subject — events are moving too fast — but I would like to note a few things. The Bureau of Meteorology forecast chart above (courtesy of Watching The Deniers) for next Monday has forced BOM to add new colours to the hot end of the range, to allow for forecast temperatures over 52ºC — well above the previous national record high of 50.7ºC. Meanwhile the current heatwave has already set a new record for the number of consecutive days where the national average temperature has exceeded 39ºC — now running at seven days, with the heat forecast to continue. That’s the average temperature for the whole of the continent, which is no small place. The previous record was four consecutive days, set in 1973.

The Sydney Morning Herald has a good summary of the records being broken here. See also: Jeff Masters, Climate Progress, New Scientist and the Guardian.

NASA’s Earth Observatory provides this overview of the fires in Tasmania over the weekend that caused chaos and destruction in the normally cool state — Hobart hit an all time high temperature of 41.8ºC, a full degree above its previous record.

Tasmania EO 2013007

Fire danger in parts of New South Wales has been classified as catastrophic, and this NASA Worldview image for Jan 8th appears to show smoke from fires in southern NSW streaming out to the east and over the sea towards New Zealand.

Ben Cubby at the SMH pulls together reactions from the scientific community under the headline “Get used to record breaking heat”, and one quote struck me rather forcefully:

“Those of us who spend our days trawling – and contributing to – the scientific literature on climate change are becoming increasingly gloomy about the future of human civilisation,’’ said Liz Hanna, convener of the human health division at the Australian National University’s Climate Change Adaptation Network.

As George Monbiot notes in the Guardian today, in a column excoriating Australian opposition leader Tony Abbott for his climate denial:

Australia’s new weather demands a new politics; a politics capable of responding to an existential threat.

My comment? That’s what the whole bloody world needs.

[The Specials]

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In this guest post, Professor Jason Box of the Geologic Survey of Denmark and Greenland (yes — he has a new job!) explains the genesis of the Dark Snow Project, a unique crowd-funded scientific expedition to Greenland planned for later this year. If you’ve got a few dollars to spare and want to make a contribution to improving the sum of human knowledge in a place that’s proving crucial to the future of the planet, this is a great way to do it.

Birth of an idea

On my way to my 23rd Greenland expedition, sitting in New York’s LaGuardia airport terminal, completing a 25 June, 2012 blog post about Greenland’s declining reflectivity, I noticed that the crowd in the waiting area were captivated by TV news coverage of the record setting Colorado wildfires. While my recently published work had linked Greenland’s reflectivity (aka albedo, Latin for whiteness) decline with the warming of the previous decade, what remains unresolved is the relative importance wildfire soot that further darkens the ice, acting as a multiplier of the feedback process.

From LaGuardia, I rang fellow Colorado native and NASA JPL snow optics expert Dr. Tom Painter to ask if snow samples plus modern microscopy and chemistry could identify wildfire soot from Colorado?

As we talked, I recalled a 2009 headline: Alaska’s biggest tundra fire sparks climate warning.

“Tom, given samples, is it possible to discriminate wildfire soot with that from industrial sources?”

“Yes,” he said.

Before the flight boarded we had decided it would be a good idea to sample Greenland’s ice and snow for wildfire soot. All we had to do was muster the resources to get to the ice sheet’s highest elevations where the satellite data showed a conspicuous pre-melt reflectivity decline.

Timeseries Albedo 07 Accum zone

7.5% reflectivity decline in July for the upper elevations ice sheet, corresponding with 50 exajoules more solar energy absorption by the ice sheet for this month between 2000 and 2012. For the June-August [summer] period, the ice sheet is now absorbing an additional 1.5 times the total US annual energy consumption. Part of the reflectivity decline is due to the effect of heat, rounding ice crystals, reducing light scattering. Another component is soot. But we don’t know if the effective importance of soot is 1%, 10%, or 50%.

[now read on…]

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Domestic solar PV: practical for NZ?

by JasonK on January 6, 2013

This is a guest post by Jason Kemp of DialogCRM. It originally appeared at Jason’s blog last week, but I thought it deserved an airing here because it directly addresses many of the issues HT’s readers have been keen to discuss. With luck, this won’t be last time Jason’s work pops up at Hot Topic

Many NZ consumers will be wondering if solar power for the home is a practical option. In simple terms despite New Zealand having mostly renewable energy our power costs to the home have continued to climb in the past few years despite low inflation. In real terms power costs have pretty much doubled for me in the last 4 years and some of that is due to changing power use but most of it comes from cost increases made by the lines companies and the electricity retailers.

According to one source: Andrew Booth of Solar City re intelligent roof tiles

“The price of power in New Zealand is more than 70% higher than in Australia and the United States. There is very little point switching power companies in the face of such high prices. Homeowners would be far better off switching to solar.”

I suspect having an unprofitable aluminium smelter sucking up huge amounts of power at a huge discount and a government hell bent on selling shares in power companies ( that we already own – double dipping anyone?) complicates the math on why NZ power costs are extortionate but having high power costs should incentivise us to investigate alternatives – shouldn’t it? [now read on…]

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Climate Show New Year podcast special: where it’s at and where it’s going

by Gareth January 5, 2013

Here’s the podcast you’ve all been waiting for — The Climate Show New Year special. Glenn and Gareth review the big climate stories of 2012, discuss at the big picture post Doha, and peek into their transcontinental Skype-powered crystal ball to prognosticate on the next 12 months. The three sections were recorded shortly before Christmas [...]

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A Celtic New Year: lilt or lament?

by Gareth January 1, 2013

Mr Morrison invites us all to come on home, and have a Celtic new year — which is always a good thing, as I can testify, being a Celt of many generations standing. While I wait for the ham to subside and the cabernet merlot to wash out of the system1, I’ll point you to [...]

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The year the earth bit back: top climate stories of 2012

by Gareth December 29, 2012

2012Amidst the blizzard of year-end roundups, here’s one you have to read in full — a joint effort put together by a diverse group of bloggers and scientists: Angela Fritz, Eli Rabett, Emilee Pierce, Greg Laden, Joe Romm, John Abraham, Laurence Lewis, Leo Hickman, Michael Mann, Michael Tobis, Paul Douglas, Scott Mandia, Scott Brophy, Stephan [...]

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A very Green Christmas

by Gareth December 25, 2012

If only all Christmas music was as good as this. The finest voice in soul, and a Green with it, reminds us what today should feel like. Compliments of whatever shakes your tree from Gareth and all the writers who have contributed to Hot Topic over the past year. Should Al pall, then spend a [...]

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