Sunday, October 26, 2014

Proto eukaryotes and LUCA

LUCA stands for "last universal common ancestor". It refers to the presumed common ancestor of the three presently recognized "domains" of life – Archaea, Bacteria, and Eukarya.

This common ancestor must have been very primitive, of course. One is tempted to think it might resemble modern-day religious fundamentalists, but in fact it was probably even more primitive, if you can imagine such a thing.

Its not absolutely clear there was actually one common ancestor, but thats what evidence currently indicates. But assuming there was, its fascinating to speculate about what this ancestor was like.

Heres a very detailed blog post that discusses the issue: Ur... Again (Sort of).

Its based on an original research paper: The origins of phagocytosis and eukaryogenesis. The paper is open access and appears to be great reading, though its conjectural and requires a little familiarity with fundamental biochemistry and cellular biology. Probably a good excuse to learn some of the details if you need to. These are topics that everybody ought to know about, even though our public educational system is way too inadequate to have done a good job of that.

Try reading at least the blog post, with a copy of Wikipedia close at hand.
Read More..

The French Energy Transition Away From Nuclear Power

The Business Spectator has an article on French plans to wind down nuclear power in favour of renewables - French carbon tax, feed-in tariff reform and CCS on horizon.
Germany’s neighbour France is also looking to shake up how it supports renewables as the country begins its “energy transition” away from nuclear.

France will introduce a carbon tax and a law to cap nuclear-power capacity as part of a new energy bill next year to boost renewable generation, President Francois Hollande told an environment conference last week. Hollande has vowed to reduce reliance on nuclear to half of total output by about 2025 while also keeping down consumers’ bills.

Among other things, the energy law in 2014 will define how renewables are financed. Hollande said last week that the above-market guaranteed prices currently paid to green energy producers “can lead to a waste of public funds, profit-taking and speculative behaviour.” Bloomberg New Energy Finance expects the shift in renewable support may move towards a greater use of tenders to keep costs low.

Read More..

Adrift on global market currents

Jeffrey Sachs has a column in The Business Spectator noting that a major reason for the economic morass Europe and the US are in is globalisation, and that policy needs to change from tax cuts to tax increases for the rich and increased investment in the future - Adrift on global market currents.

A failure of economic strategy and leadership lies behind the near simultaneous collapse of market confidence in the eurozone and US economies. No need to blame the ratings agencies: governments in Europe and America have been unable to cope with the realities of global capital markets and competition from Asia – and deserve the lion’s share of the blame.



I’ve watched dozens of financial crises up close, and know that success means showing the public a way out that is bold, technically sound and built on social values. Transatlantic leadership is falling short on all counts. Neither the US nor Europe have even properly diagnosed the core problem, namely that both regions are being whipsawed by globalisation.



Jobs for low-skilled workers in manufacturing, and new investments in large swaths of industry, have been lost to international competition. Employment in the US and Europe during the 2000s was held up only by housing construction stoked by low interest rates and reckless deregulation – until the construction bubble collapsed. The path to recovery now lies not in a new housing bubble, but in upgraded skills, increased exports, and public investments in infrastructure and low-carbon energy. Instead, the US and Europe have veered between dead-end, consumption-oriented stimulus packages and austerity without a vision for investment.



Macroeconomic policy has not only failed to create jobs, but also to respond to basic social values too. Let me be clear: good social policy does not mean running big deficits. Public debts are already too large in both Europe and the US. But it does mean a completely different balance between cuts to social services and tax increases on the rich.



The simple fact is that globalisation has not only hit the unskilled hard but has also proved a bonanza for the global super-rich. They have been able to invest in new and highly profitable projects in emerging economies. Meanwhile, as Warren Buffett argued this week, they have been able to convince their home governments to cut tax rates on profits and high incomes in the name of global tax competition. Tax havens have proliferated even as the politicians have occasionally railed against them. In the end the poor are doubly hit, first by global market forces, then by the ability of the rich to park money at low taxes in hideaways around the world.



An improved fiscal policy in the transatlantic economies would therefore be based on three realities. First, it would expand investments in human and infrastructure capital. Second, it would cut wasteful spending, for instance in misguided military engagements in places such as Iraq, Afghanistan, and Yemen. Third, it would balance budgets in the medium-term, in no small part through tax increases on high personal incomes and international corporate profits that are shielded by loopholes and overseas tax havens.
Read More..

Saturday, October 25, 2014

Japan boosts recycling to ease Chinese rare earth squeeze

The SMH has an article on an increased interest in recycling (and eventually, in "design for disassembly") as a result of restricted availability of rare earths for manufacturing - Japan boosts recycling to ease China squeeze.
It takes two Hitachi workers eight minutes to slice open the metal casing of the used air conditioner compressor. The prize inside: four wafer-thin magnets containing about 30 grams of rare earth metals.

Hitachi, Japans third-biggest company, uses as much as 600 tons of rare earth metals each year in products such as motors for Toyotas Prius hybrid. Hitachi is one of hundreds of manufacturers depending on rare earth shipments from China, which controls 97 per cent of world supply of the lightweight, malleable metals essential to hybrid cars, cell phones and hard disk drives.

Chinas decision this year to slash exports of the metals has driven up prices and spurred a drive among Japanese companies, the worlds biggest users of rare earths, to find other supplies. While trading houses Sojitz and Sumitomo consider investing in mines outside China, Hitachi said it expects recycling to meet 10 per cent of its needs by 2013 from almost zero now.

“We need to make sure we have a stable supply of these materials and recycling is part of that,” Kenji Baba, general manager of Hitachis resource recycling office, said this week at a test site north of Tokyo. “Now we have to work on bringing costs down.”

Inside the site in a warehouse in Matsudo City, Hitachi demonstrated the results of the one-year, $US1.5 million ($1.5 million) research project partly funded by Japans government. Four refrigerator-sized devices use saws to open up compressors without damaging the rare earth magnets inside. A separate conveyor belt feeds disk drives into a machine about the size of a ship container. The drives come out the other end in pieces ready for rare earth harvesting. Hitachi says the machines are the first of their kind.

Rising prices

Last year, Chinas government clamped down on its rare earth industry, setting production quotas to bolster prices. China said in July this year it would reduce export quotas 72 per cent in the second half to supply its own electronics industry and overhaul a mining sector blamed for causing widespread environmental damage.

The drop in output and exports combined with rising demand caused the price of neodymium used in batteries for Toyotas Prius to surge fourfold to $US80 a kilogram from $US19.12 in 2009, according to Sydney-based rare-earth miner Lynas Corp. Lynas is building a $550 million rare earths mine at Mount Weld in Western Australia.

Sojitz, one of Japans biggest importers of rare earths, last month agreed with Lynas to buy 8,000 tons to 9,000 tons annually from its Mount Weld mine over the next 10 years. ...

Copper processor Mitsubishi Materials Corp., which has recycling ventures with Panasonic and Sharp, last year started researching the cost of extracting neodymium and dysposium from washing machines and air conditioners.

“Were trying to reduce costs by automating the process,” said Isato Matsubara, a spokesman at the company. “How profitable the business can be depends on the prices of materials and getting our costs down.” ...

For recyclers, extracting components is the first step. Magnets from air conditioning compressors are 25 per cent rare earth metal and a chemical process is needed to refine out the rare earths, Hitachis Baba said.

“Weve succeeded in processing the metals in small quantities without using acids,” Baba said. “Now were working on methods to increase the scale.”

Even Chinas supply is not unlimited, some of the heavy rare earths it has will only last about 15 years, Ali Izadi- Najafabadi, a Tokyo-based analyst at Bloomberg New Energy Finance, said.

“So if were going to have a clean energy revolution and electric vehicles and other things, recycling would have to be part of the infrastructure,” he said.
Read More..

Green Technology Magazine

green technology magazine soon to be built are another 450 units of condominiums and town homesgreen technology magazine e we would like to show you a description here but the site wont allow us

techwave it information sustainable development is one prime millennium goal entire human races struggling to achieve balanced development paired with environment factors needed in this for hotels hotel industry hotel industry hotels that adopt eco friendly measures and as part of their general philosophy are also increasingly finding that roof s publications books s and more visit roof s website for a list of our publications including books s periodicals blogs and more

backblog backbone blackiron data is taking a leadership role in eco friendly facility design by building one of the first data centres in canada to be awarded leed leadership inpopular science new science news the future now reporting on whats new and whats next in science gadgets space tech and more loginregister newsletter tech transfers design and remodeling home remodeling design and seize the day remodeling projects offer an opportunity to add energy upgrades

gadgets gizmos and gadgets article inccom acer timeline acers new laptop which is scheduled for release this month uses as much as a third less energy than typical notebooks the smart ac adapter cuts backarticles from data center news all articles by last night sustainability legend gro harlem brundtland media guru and philanthropist ted turner eu commissioner for climate for hoteliers hotel industry hoteliers throughout the uk who want to remain competitive can no longer consider as an industry fad its now high on the agenda

  • soon to be built are another 450 units of condominiums and town homes
  • head royce schools new entrance and gatehouse part of 30 million
  • green technology news
  • fruitvale village from platform
  • copyright 2008 green technology all rights reserved california s green
  • green technology home
  • newark centers spacious hallways are called informal learning spaces
  • copyright 2007 green technology all rights reserved
  • new housing at the richmond transit village located next to the
  • state senator christine kehoe d 39th district looks on as students
  • shown here are some of the outdoor plaza exhibits including
  • daylighting individual task lighting green rated furniture and
  • green technology gadgets gizmos and gadgets article inccom
  • green technology gallery
mit review marchapril 2013 mit review list innovators under 35 have mit review delivered to your doorstep desktop or tablet more newsletters mit enterprise forumthe top 10 tech breakthroughs of 2008 wired science tech legislation gets real subscribe to wired subscribe to wired renew give a gift customer service advertisement masthead wired

use tech to lower your home energy costs living nobody likes paying through the teeth every month when the energy bill comes around there is no need renovate or remodel your home if you consider these embrace edtech welcome to edtech analysis collaboration and awareness these are words that help put our efforts into perspective as we research innovations and review opportunities to deploy tech media fortune tech blogs news and the tech industry will fondly remember 2010 after enduring collapsing prices and lackluster demand in 2009 solar companies saw panel shipments grow by an

designing buildings to clean and reuse wastewater on site graywater treatment systems offer an efficient solution for water conservation if designers are willing to invest the time and effort

green technology magazine, interview with tom sheehy update youtube

green technology magazine green technology news 129x683green technology magazine for truckers hippie fuel costs is a major expense for professional truckers incorporating helps save money and the environment

complete list top 20 tech ideas time video lifecom lists main top 20 tech ideas tweet full list clean tech despite setbacks moving forward in clean tech recycling e2009 rd awards architect introducing the third annual architect rd awards research and development may seem like luxuries right now what with the global economy struggling totechnewsmagcom is a great way to help reduce house gases and help preserve our subscribesearch subscribe via rss feed subscribe via email recent entries

wiredcom get in depth coverage of current and future trends in and how they are shaping business entertainment communications threat levelcampus for campuses campus campus is a higher education that provides updated information about advanced networking for the campus enterprise security solutions cleantech and renewable energy news and analysis leading source of newsresearch on and the cleantech movement analysis and networking events on clean and renewable energy

and and innovation news from latest in news scientific american 15 hours ago blind children in india receive gift of sight video earthtalk 16 hours ago going thank you your credit due they levitra levitra come to declare bankruptcydelay when coworkers find in georgia viagra viagra can will contact informationeveryone has

green technology magazine Image Gallery

green technology magazine copyright 2008 green technology all rights reserved california s green 129x683
green technology magazine - copyright 2008 green technology all rights reserved california s green [129x683] | FileSize: 84.46 KB | Download

green technology magazine green technology home 129x683
green technology magazine - green technology home [129x683] | FileSize: 95.06 KB | Download

green technology magazine newark centers spacious hallways are called informal learning spaces 505x311
green technology magazine - newark centers spacious hallways are called informal learning spaces [505x311] | FileSize: 158.12 KB | Download

green technology magazine copyright 2007 green technology all rights reserved 504x352
green technology magazine - copyright 2007 green technology all rights reserved [504x352] | FileSize: 332.08 KB | Download

green technology magazine new housing at the richmond transit village located next to the 504x335
green technology magazine - new housing at the richmond transit village located next to the [504x335] | FileSize: 151.36 KB | Download

green technology magazine state senator christine kehoe d 39th district looks on as students 504x336
green technology magazine - state senator christine kehoe d 39th district looks on as students [504x336] | FileSize: 270.88 KB | Download

green technology magazine shown here are some of the outdoor plaza exhibits including 504x342
green technology magazine - shown here are some of the outdoor plaza exhibits including [504x342] | FileSize: 210.17 KB | Download

green technology magazine daylighting individual task lighting green rated furniture and 505x333
green technology magazine - daylighting individual task lighting green rated furniture and [505x333] | FileSize: 231.88 KB | Download

green technology magazine green technology gadgets gizmos and gadgets article inccom 600x448
green technology magazine - green technology gadgets gizmos and gadgets article inccom [600x448] | FileSize: 31.87 KB | Download

green technology magazine green technology gallery 720x481
green technology magazine - green technology gallery [720x481] | FileSize: 113.49 KB | Download

green technology magazine fruitvale village from platform 504x335
green technology magazine - fruitvale village from platform [504x335] | FileSize: 88.14 KB | Download

green technology magazine and environmental building tech design learn about applying to environmental building projects source subscribe to source manage your print subscription

living we ask a lot of our cars heat me cool me be silent be comfy be exciting and increasingly propel me without costly and polluting gasolineforbes tech information and tech news forbescom headline grabs social recent activity active in tech in the past 24 hours trending in tech all of forbes dig site value tech market to double by 2025 with germany sharing helm renewable energy at the heart of clean energy journalism

science solar flight takes off solar impulse the group whose goal is to fly an airplane around the world propelled solely by solar energy has proven that night flight fleet alternative fuel hybrid fleet is your top resource for alternative fuel trends innovations environmental regulation updates and fuel efficiency best practicesbreaking news water utilities take note reducing reliance on imported water not only has environmental benefits it also stimulates economic and job growth

business to business news articles resources daily business news and articles from corpcom for executives entrepreneurs and business owners we are a premier business to business publication offering solutions for a sustainable world hydrogen comeback welcome to covering a fascinating range of topics of the emerging world innovations and products in a interview jane long phd chair of the californias energy future project at the california council on science and

Read More..

Solar Energy Disadvantages

Solar Energy Disadvantages Biography
There are many more advantages than disadvantages of solar energy, yet this article will cover the disadvantages of using solar energy to generate electricity.

Alternatively, you can take a look at some of the many advantages of solar power on our additional dedicated page surrounding this topic.

We hope the information below will be of great use to you in understanding some of the implications which solar energy can place upon us.

Disadvantages:

One of the main disadvantages is the initial cost of the equipment used to harness the suns energy. Solar energy technologies still remain a costly alternative to the use of readily available fossil fuel technologies. As the price of solar panels decreases, we are likely to see an increase in the use of solar cells to generate electricity.
A solar energy installation requires a large area for the system to be efficient in providing a source of electricity. This may be a disadvantage in areas where space is short, or expensive (such as inner cities).
Pollution can be a disadvantage to solar panels, as pollution can degrade the efficiency of photovoltaic cells. Clouds also provide the same effect, as they can reduce the energy of the suns rays. This certain disadvantage is more of an issue with older solar components, as newer designs integrate technologies to overcome the worst of these effects.
Solar energy is only useful when the sun is shining. During the night, your expensive solar equipment will be useless, however the use of solar battery chargers can help to reduce the effects of this disadvantage.
The location of solar panels can affect performance, due to possible obstructions from the surrounding buildings or landscape.
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages
Solar Energy Disadvantages


Read More..

The peak oil debate is over

Energy Bulletin has a transcript of a speech by James Schlesinger at the recent ASPO USA conference - The peak oil debate is over.
May I start with a bromide: a resource which is finite is not inexhaustible. If you think that over, it should not be a revelation. That was a bromide… some people think a keynote should never rise above a bromide….

Some five years ago in Italy I concluded a talk by saying that like the inhabitants of Pompeii, who ignored the neighboring volcano, Vesuvius, until it detonated, the world ignores the possibility of peak oil at its peril.

Two years ago in addressing ASPO in Cork, Ireland, I argued that the peakists had won the intellectual argument, except for some minor details about precise timing, but that by and large everyone recognized that there were limits on our capacity to increase the production of crude oil as we have steadily since World War Two.

[I also argued] that peakists were no longer a beleaguered minority, that they had won, and that consequently they should be gracious in victory.

There’s an old spiritual that is relevant here. The walls of those who doubted the peak seemed to be impregnable. Nonetheless, you marched around the walls seven times and then blew the trumpets and the walls of Jericho came tumbling down.

But acceptance by knowledgeable people is not enough. The political order should respond. Nonetheless, our willingness, let alone our ability, to do anything serious about the impending inability to increase oil output is still a long way off.

The political order responds to what the public believes today, not to what it may come to believe tomorrow. It is also resistant to any action that inflicts pain or sacrifice on those who vote. The payoff in politics comes from reassurance, perhaps precluded by a rhetorical challenge.

Still, the challenge is clear in both logic and in the evidence. Let me start briefly with the logic,

If something cannot be sustained, it will eventually not be sustained… ultimately it will shrink.

Secondly, you cannot produce oil unless you first discover it (a contribution by Colin Campbell).

Third, a resource that is finite cannot continually have its production increased.

What is the evidence?

First, we remain heavily dependent on super-giant and giant oilfields discovered in the 50s and 60s of the last century… I might add, of the last millennium. Only rarely in recent decades have discoveries equaled production. Mostly, it’s been one barrel discovered for every three barrels produced.

Second, old super-giants like Burgan in Kuwait and [Cantarell] in Mexico have gone into decline earlier than had been anticipated… and going into decline have been Alaska, the North Sea, western Siberia and the like.

Third, while it is not yet “Twilight in the Desert” (as you may have read) still we are well into the afternoon, even in Saudi Arabia. Even the Ghawar oilfield is increasingly hard to sustain.

Fourth, in 2004 we experienced our first demand-driven price spike, as opposed to the previous price spikes driven by supply interruptions. We still operate at about the level of production capacity of 2004.

Next, given projected decline curves running from 4 to 6 percent, and the projected increase in demand during the next quarter century, we shall require the new capacity equivalence of five Saudi Arabias.

Even the International Energy Agency, which previously had been sanguine, now suggests that we can no longer increase production of conventional oil in the course of this decade.

Note that it is conventional oil: that is all that Hubbert talked about. Somewhat disingenuously, the debate has been turned on him by talking about fuel liquids in general, throwing in tar sands, heavy oil, coal liquids, oil shale and so on.

But clearly, large conventional oil production is increasingly no longer part of the future unless there is a technological breakthrough, which Mr. Gilbert talked about just a few moments ago, raising the ultimate recovery rate from existing fields, which at this moment we cannot expect.

Of course, there are uncertainties which make timing predictions with regard to the peak risky. Iraq, which has been held back for a variety of reasons, may come along as one of those five new needed Saudi Arabias.

Offshore Brazil and offshore oil elsewhere are promising. Shale gas, which is apparently coming in abundance (but is not, of course, oil) may somewhat alleviate the pressures on liquid fuels.

But in general we must expect to get along without what has been our critical energy source in expanding the world’s economy for more than half a century.

Can the political order face up to the challenge? There is no reason for optimism.

We are likely to see pseudo-solutions, misleading alternatives and sheer sloganeering: “energy independence,” “getting off foreign oil” and the like. All of that sheer sloganeering we have seen to this point.

The political order (which abhors political risk) tends to rely on the Biblical prescription, “Sufficient unto the day is the evil thereof.”

Dr. James Schlesinger "The Peak Oil Debate is Over" from ASPO-USA on Vimeo.

Read More..