Too good to be true? Is green flying really possible?

This is a long post, around 5,000 words, wherein I go down many rabbit holes. Perhaps at the end, though, there is a little pot of genuine climate gold.

At any given time there are more than half a million people in the sky, a veritable city about 11 kilometres up, strapped into seats in pressurised tubes atop gigantic flying tanks of kerosene. Looking forward, numbers of air travellers are increasing by 5% each year. Continue reading Too good to be true? Is green flying really possible?

Feeding the 10 billion

Suggested topic for discussion:

This report looks at ways of feeding future world populations without trashing the planet even further.

It’s no secret that the course we’re on with food production and consumption is in need of serious correcting, but a major new report from a global team of scientists has laid out the kind of maneuvering needed to set us on a sustainable path. Billed as a planetary health diet for both the Earth and its people, the set of guidelines put forward by the EAT-Lancet Commission gun for nothing short of a “Great Food Transformation,” something they say would feed 10 billion people, save lives and avoid large-scale environmental destruction.

The team’s proposed diet allows for the consumption of no more than 98 g (3.45 oz) of red meat a week, 203 g (7.1 oz) of chicken and 196 g (6.1 oz) of fish. Meanwhile, the diet suggests consuming at least 500 g (17.6 oz) of fruits and vegetables, 125 g of dry beans, lentils, peas and other nuts and legumes each day. While this presents a massive shift for many, it won’t appear all that foreign to folks in some parts of the world.

Apart from diet issues that need to be discussed include water consumption, more efficient use of fertilizers and land and what can be done to produce food in very arid areas.

 

 

Weekly salon 13/1

1. Saudi teen feared for life while waiting on Australia refugee ruling

Rahaf Mohammed Al-Qunun had applied to come to Australia.

But she told SBS News the process was taking too long and she feared for her life because her father and brother were in Thailand.

“Yes, toooooo long,” she responded to SBS News, when asked about the length of time. Continue reading Weekly salon 13/1

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

Weekly salon 6/1

1. Australians care if politicians tell lies, but people in the US don’t

Stephan Lewandowsky and others undertook a study which found the people in Australia cared if politicians told the truth, and were likely to take notice of fact checks. When they did the same study in the US they found the effect was 10 times less.

They speculate that this is because politics is much more polarised in the US. Continue reading Weekly salon 6/1

The NBN, 5G and a bifurcating technical future

According to the AFR:

    A Shorten Labor government has been tipped to initiate an overhaul of National Broadband Network policy within months or even weeks of a federal election, opting for a more comprehensive fibre-optic cable network than the Coalition’s controversial “multi-technology mix”. Continue reading The NBN, 5G and a bifurcating technical future

Towards civilising capitalism

As I noted back in 2014, Immanuel Wallerstein, the great sociologist of capitalism in the late 20th century, has been writing about the instability of the ‘world system’ (a term he coined) for over 40 years. He believes that the ‘world system’ of capitalism has been in decline since about 1968, so that we are now in a transition phase. The new system will not necessarily be better for ordinary people. In an intriguing piece from May 2014 – “The center isn’t holding very well” – he says:

    As our existing historical system is in the process of dying, there is a fierce struggle over what kind of new historical system will succeed it. Soon, we may indeed no longer live in a capitalist system, but we could come to live in an even worse system – a “rough beast” seeking to be born? To be sure, this is only one possible collective choice. The alternative choice is a relatively democratic, relatively egalitarian system, also seeking to be born. Which one we shall see at the end of the struggle is up to us, bottom-up.

Continue reading Towards civilising capitalism