Category Archives: Climate Science

Climate clippings 199

1. Ballarat and Bendigo targetted for blackouts to keep lights on in NSW

It didn’t happen, but the phone call was made during the early February heatwave:

    Victorian Energy Minister Lily D’Ambrosio confirmed she was approached by the Australian Energy Market Operator (AEMO) with the suggestion that either Ballarat or Bendigo could potentially lose electricity for a period of time to assist NSW.

Victoria was not impressed and have demanded an explanation. Continue reading Climate clippings 199

The sea is anything but level

Did you know that if you swam from a point south of India to Indonesia you would be swimming 200 metres uphill?

Did you know that the Ecuadorean peak Chimborazo is two kilometres higher that Mount Everest if measured from the centre of the earth?

Those are not the only issues with sea level. When the Swiss and the Germans built a bridge at the border at Laufenberg, the Germans calibrated the height to a benchmark in Amsterdam, while the Swiss used one in Marseilles. They knew there was 27cm difference, but they added where they should have subtracted and met with a yawning gap of 54cm! Continue reading The sea is anything but level

Climate clippings 198

1. LiquidPiston engine

The innovative LiquidPiston engine, mentioned by BilB, is targetting a global market worth $460 billion. It has a power to weight ratio more than ten times better than a regular engine:

The big bruiser on the left puts out 35 HP, the one on the right 40 HP. Continue reading Climate clippings 198

Climate clippings 197

1. Global plan to save 10 per cent of coral reefs

A world-wide plane is being hatched a global plan says only 10 pc of coral reefs to save 10 per cent of coral reefs. The stark fact is that:

    Scientists estimate 90 per cent of the world’s coral reefs will disappear in the next 35 years due to coral bleaching induced by global warming, pollution and over-development.

The 50 Reefs initiative, recently launched at the World Ocean Summit in Bali, in a donor funded initiative to identify the 10% of reefs most likely to survive past 2050. Effectively it’s a triage operation. Continue reading Climate clippings 197

Record 2016 heat spells trouble on global scale

The third record year in a row has been declared. The last time it was as hot as this was 115,000 years ago. The last time CO2 was this high was in the Pliocene, 3 to 5 million years ago when the temperature became roughly 3 to 4 degrees Celsius warmer than today, and the sea level up to 40 metres higher.

Andrew Simms for The Guardian polled a number of scientists about whether we could keep warming under 2°C. Not a single one thought we would. One scientist said “not a cat in hell’s chance”. Kevin Anderson, now professor in Uppsala, said politically we gave up years ago. Prof Joachim Schellnhuber, director of the Potsdam Institute for Climate Impact Research, would “only confirm that it is still possible to keep global warming below 2C”. Technically speaking, I assume. Continue reading Record 2016 heat spells trouble on global scale

Climate clippings 194

1. Methane emissions spiking

The Global Methane Budget 2016 has been released, and the news is not good.

    CSIRO researcher Dr Pep Canadell said it was the most comprehensive modelling to date and revealed a potentially dangerous climate wildcard.

    “Methane emissions were stable for quite a few years at the end of the 2000s. But they’ve begun to grow much faster, in fact 10 times faster, since 2007,” said Dr Canadell, who is also the executive director of the Global Carbon Project.

Continue reading Climate clippings 194

Climate clippings 191

1. Tesla solar roof cheaper than regular roof, with electricity “a bonus”

    Tesla founder and CEO Elon Musk has again set tongues wagging, this time with his declaration last week that his newly launched integrated solar roof tiles could actually cost less to install than a regular roof – making the renewable electricity they produce “just a bonus”. Continue reading Climate clippings 191

Climate clippings 190

1. BoM says 260km/h winds knocked down network in SA blackout

    The Bureau of Meteorology says wind gusts up to 260km/h from a “supercell” thunderstorm and multiple tornadoes were recorded on September 28, destroying transmission towers and causing the state-wide blackout in South Australia.

That’s as strong as Cyclone Tracy, which flattened Darwin, and almost as strong as Cyclone Yasi. Continue reading Climate clippings 190

Ice sheet decay spells danger from sea level rise

think-progress_0-byvq9xmd8g3r6qzl_230In the post Scoping long-term sea level rise I indicated the possibility of 25 metres (±5) of SLR with emissions of 380 (360-400)ppm and a temperature variance of 2.7 to 3.7°C. The question was really how long it would take, and what were the prospects for the next century or three.

The received wisdom seemed to be that we could expect about a metre, by 2100, and some studies limited SLR to about two metres in the next millennium. A new study suggests we could get close to two meters in total by 2100. Moreover the melting of ice on Antarctica alone could cause seas to rise more than 15 meters by 2500. Continue reading Ice sheet decay spells danger from sea level rise

Climate clippings 188

1. Electric car revolution may drive oil ‘investor death spiral’

Bloomberg is warning that the multi-trillion-dollar ‘big crash’ in oil investments could start as soon as 2023. However, the smart money is bound to move earlier. Here’s the progress of electric car sales:

1-hkypjilys0m1xolgpzmtag_600 Continue reading Climate clippings 188

Global temperature, the North Atlantic cold blob and the Gulf Stream

September’s global temperature confirmed that we are living in the hottest year on record. Here’s the map:

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NASA tells us that the record-warm September means 11 of the past 12 consecutive months dating back to October 2015 have set new monthly high-temperature records. June has been down-graded to third hottest, because of late cold temperatures reported from the Antarctic. Also September was only a slither warmer than 2014. It’s the long-term trends that count. So let’s look at the 30-year moving average from Open Mind: Continue reading Global temperature, the North Atlantic cold blob and the Gulf Stream

Climate clippings 187

1. Arctic sea ice volume collapse

The collapse of the Arctic sea ice volume has been even more dramatic than the extent, as shown in this graph:

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It’s down from 16,855 cubic kilometres in 1979 to 4,401 in 2016, that’s an ice loss of about 74%. Continue reading Climate clippings 187