Category Archives: Climate Change & Sustainability

Posts on aspects of climate science, climate action and climate policy & planning.

Four graphs that matter in the climate emergency: bonus edition

This is an updated version earlier post, slightly shorter, where I have deleted some material in favour of new material, especially towards the end, and sharpening some points along the way.

First graph

Greta Thunberg, the girl who can’t quit, said:

    The emissions are increasing and that is the only thing that matters.

This is what was shown for July 01, 2019 at Mauna Loa:

Continue reading Four graphs that matter in the climate emergency: bonus edition

Weekly salon 7/9

1. Storms for Hansen’s grandchildren

(From Hurricane Dorian: devastation and destruction in the Bahamas – in pictures)

John Schwartz at the NYT (posted at Lethal Heating) asks How Has Climate Change Affected Hurricane Dorian?

Michael Mann and Andrew E Dessler respond in Global Heating Made Hurricane Dorian Bigger, Wetter – And More Deadly. With warm seas and more moisture in the atmosphere hurricanes can intensify faster, contain more moisture, more wind power and move slower. This means greater flooding and a increased possibility of coinciding with high tides. Continue reading Weekly salon 7/9

The price of protest in fashion waste

When I was young, we wore clothes until the wore out. I had an elder brother, and got to wear hand-me-downs.

This all changed, possibly in the 1970s and 1980s. Now we have the phenomenon of single-use clothing, ironically often T-shirts worn by people crusading to save the planet. Richard di Natale is, I think, the Australian politician most often seen in T-shirts. During the last election he often looked like this:

Continue reading The price of protest in fashion waste

Weekly salon 1/9

1. Waiting for Godot

Part of my delay in completing this week’s edition was waiting for something that wasn’t ridiculous to happen. There is plenty like Boris Johnson suspending parliament, and Trump attacking Fox News, and Fox News hitting back.

To be honest, I’ve been knocked a bit askew by the David Spratt’s question At 4°C of warming, would a billion people survive? The answer according to some respected scientists is, in brief, probably not, something less than a billion, and 4°C seems to be where we are heading.

That would mean on average more than a million deaths from global warming each week for the next 90 years. Continue reading Weekly salon 1/9

Keeping the lights on

Last week began with a front page article in the AFR Victoria prone to blackouts this summer as grid wilts and ended with an AFR editorial How can Australia have third-world power blackouts?

The answer to that question is easy – we don’t have to avoid third-world blackouts because we don’t have them. The more important question is, why is Michael Stutchbury’s head in such a muddle? Stutchbury is editor in chief of the AFR and appeared on ABC Insiders this morning. Other panelists asked whether he had read “the report”. Continue reading Keeping the lights on

Australia’s climate credibility shredded in Pacific ‘step up’ disaster

In the Pacific Island Forum (PIF) climate change is seen as an existential threat. ‘Existential’ in the sense that life for the Pacific islanders is embedded in community and place. Shifting to higher ground somewhere else is not a solution. (See Geoff Henderson’s excellent guest post Climate refugees in the Central Pacific -the Republic of Kiribati)

To put the best construction on what happened, Pacific leaders and Australia agreed to disagree about action on climate change.

PIF chair, Tuvalu’s Prime Minister Enele Sopoaga, said to Australian PM Scott Morrison:

    “You are concerned about saving your economy in Australia … I am concerned about saving my people in Tuvalu.”

Continue reading Australia’s climate credibility shredded in Pacific ‘step up’ disaster

Water from thin air

As I reported recently, ten towns in northern NSW and the Southern Downs in Qld are at high risk of running out of water. Indeed news.com reports that Stanthorpe could be dry by Christmas, with nearby Warwick at risk of running out in 17 months’ time.

Nature worked out how to extract water from desert air with the evolution of the Namibian fog beetle (above). The image is from my files, so I’ve posted about it before, I reckon about 10 years ago. I googled and found this article: Continue reading Water from thin air

Weekly salon 6/8

1. Tears in the rain

I don’t often note the passing of famous people, because there are so many. Recently I was touched by news of the passing of Rutger Hauer, who played the replicant Roy Batty who was meant to be hunted down and killed Harrison Ford’s character Rick Deckard in Bladerunner. See the final part of the scene in “I Saw the Future”: Rutger Hauer (RIP) Remembers His Most Memorable Role in Blade Runner. Continue reading Weekly salon 6/8

Climate action: a doddle or deep adaptation?

Again, this post started as an edition of Climate clippings.

Where I ended up after a series of happenings as described below, is concluding that we need a paradigm shift in our climate change aspirations. Instead of trying to limit warming to a point where we can avoid dangerous climate change, we need to recognize that we’ve already gone too far, that the climate is already dangerous, so we should aim to ratchet down GHG concentrations in the atmosphere to attain a safe climate.

1. Germans look to 7.4 trillion tons of fake snow to save the West Antarctic Ice Sheet

Continue reading Climate action: a doddle or deep adaptation?

Saudis throw a spanner

Climate science was buried at a meeting in Bonn. Meanwhile diplomats planted trees to symbolise their intention to combat desertification (Photo: UNFCCC)

At a mid-year meeting of UNFCCC in Bonn this year in June a small group of countries led by Saudi Arabia have put the kybosh on any formal consideration of the IPCC Special Report on 1.5°C in the UNFCCC forum. Continue reading Saudis throw a spanner