Tag Archives: Temperature

Temperature pushes Great Barrier Reef to tipping point

In this post we find that the 2020 global average surface temperature was 1.25°C hotter than pre-industrial, equal first with 2016, according to The European Copernicus Climate Change Service. This is important for the Great Barrier Reef, because in a little known report in 2013 scientists found that 1.2°C is the warmest compatible with the Reef remaining a coral-dominated system. Focus recently has been on the emergence of annual severe bleaching (ASB) when the affected reefs are effectively dead. Climate change action of the type we are engaged in will only delay the emergence of ASB on average from about 2034 to 2045. Continue reading Temperature pushes Great Barrier Reef to tipping point

Weekly salon 15/2

1. Rupert gets his just deserts

The New Daily has an article News Corp in ‘dangerous times’ as audience and revenues drop in print and digital:

    Audiences deserted Rupert Murdoch’s News Corp mastheads in 2019 with its tabloid tub-thumper The Daily Telegraph losing a massive 15.5 per cent of its readership across both print and digital editions, according to research house Roy Morgan.

Continue reading Weekly salon 15/2

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 Muana Loa:

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

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?

Climate change by the numbers

In 1999 NASA lost its $125-million Mars Climate Orbiter because spacecraft engineers failed to convert from Imperial to metric measurements when exchanging vital data before the craft was launched. Numbers are important!

When Michael Le Page attempts to sort out the numbers in climate science (probably pay-walled) it’s not as straight forward as you might think. For starters we are given this image:

When ice melts, sea level rises – but how much, and how fast? Paul Nicklen/National Geographic Creative

Sorry, when floating ice melts the sea level does not rise. The caption is misleading. Continue reading Climate change by the numbers

Heat begins to bite

Mira Adler-Gillies at the ABC looks at How deadly is 50-degree heat? Australia’s cities face the new reality of climate change:

    Buckled train tracks, grounded planes, melting bitumen and massive blackouts: the dystopian vision of the 50-degree city is closer to reality every day.

    With wildfires raging around the Arctic Circle, unprecedented heatwaves in the Northern Hemisphere and record temperatures being set from Algeria to Canada, the world is getting inexorably hotter.

Continue reading Heat begins to bite

Sizzling summers presage a global future

Back in 2003 a heatwave centred in France killed over 70,000 people. Another which struck Moscow in 2010 killed 10,000. During the 2009 Black Saturday bushfires in Victoria 173 people tragically lost their lives from the fire. However, health authorities believe Victoria’s record-breaking heatwave may have contributed to the deaths of about another 374 people with the state’s death toll 62% higher than at same time in the previous year.

The elderly were worst affected, but the very young and those in frail health are also typically affected in events like this. Continue reading Sizzling summers presage a global future

Climate clippings 117

On Monday and Tuesday this week we are going to have the AFR national Energy Summit in Sydney with everyone there, including Josh, Jay, Bill, Andrew Vesey and a different Malcolm Roberts (Chief Executive, APPEA). Should be fun.

The Weekend AFR had about half a dozen articles, led off by an article by Ben Potter, Angela Macdonald-Smith and Mark Ludlow (no doubt pay-walled) which said our energy has become dirty, expensive and annoyingly unreliable. They reckon something has to be done, it’s just that:

the causes identified by Prime Minister Malcolm Turnbull – or unofficial backbench energy spokesman Tony Abbott – are not the same as the causes power industry experts and regulators highlight. Continue reading Climate clippings 117

Climate clippings 201

1. Australian fund managers short Tesla and Elon Musk

When Elon Musk dramatically promised to build a grid-scale battery in South Australia, the media was enthralled. Share traders and a string of Australian fund managers smirked. They’d seen it all before, and were shorting him in the market.

In that very week he was in the market with plans to raise $US1.15 billion in equity and convertible notes. I understand also that Tesla has gone strangely quiet about SA since then. Continue reading Climate clippings 201