Environment Category Archive

Politics and the Environment

3 Replies Jonny Hankins

Yesterday the official data came out and the year 2012 was the hottest year the US has experienced since records began. Not only that, but it was the hottest by a long way.

The Hurricane Sandy experience, as well as a recent spate of wildfires and drought, has meant that the topic of climate change is firmly on the table, but the dissenting voice still carries political clout.

There are two polar positions here, with a large political lobby arguing that climate change has nothing to do with human actions, that either the Earth is warming naturally or that there is no proof that the world is warming at all. This goes against mainstream European thinking, and we can see many differences in approach between the two continents. In Europe we no longer use plastic bags on mass, they are now almost all biodegradable, and we can only buy low wattage compact fluorescent lamps as old style light bulbs have been fazed out.

Here the government is moving towards the same goal. In Massachusetts an organization called Mass Save subsidizes the cost of replacing old bulbs with new. The money comes from the user who has to pay a supplement on the electric bill to fund the scheme, but all is not without issue.

which do you favour?

A traditional and new style lamp

These bulbs contain mercury, a naturally occurring but poisonous substance. This means that they have to be disposed of properly, as if they are just dumped into the ground they can poison the surrounding water ways, very much in the same way as batteries do. They are also much more complex than old style bulbs, they require assembly and raw materials for their components, and much of this work is carried out in China with the usual questions of human rights and exploitation that are associated with this type of process.

Some sections of the political world (the Tea Party for example) offer this as proof that the environmentalists are poisoning the Earth and that their arguments are based upon false suppositions. Statistics are produced that seemingly show that a few lamps may do a lot of damage, but they do cut down electricity consumption enormously, and here in the US a lot of electricity is still produced by burning coal, and that is an extremely dirty and polluting affair.

The amount of mercury is also disputed, bringing poison into the house, light that burns skill, all kinds of terrifying scenarios, and I am certain that these lamps do present a real issue of environmental threat, but it is not through such scaremongering that progress will be made.

For the lamps to be efficient and effective they must be disposed of properly. For this to happen the public must be informed and take action. These bulbs must be correctly packaged when they fail and taken to recycling hubs where skilled operators know how to dismantle them.

As many readers might know, the environment and all issues surrounding its protection are extremely politicized in the US. Research data is difficult to come by, and large sums of money are involved, particularly on the side of the sceptics. But cuts in electricity use must be a good thing, but only if the collateral effects of such a mass introduction of ever cheaper technology that purports to be wholly good are properly investigated and managed.

Low mercury lights are available too, but I would like to say that the amount of mercury present in even a non low mercury version is extremely small. You have a lot more in the fillings in your teeth for example, but you should still go to the dentist for a check up every now and again.

In practical terms, I recently changed 12 bulbs in my house and my monthly electricity bill dropped by about 20%, good for me, good for the planet, but let’s not see it out of context. The keys are nothing more than management however, good research that is available to all, education on the pros and cons of different possible solutions, and less political manipulation.

Here are two takes on the story. A critique of the way these problems arise through big business funding of the sceptic argument and a critique of from the other side.

Both politically loaded as you will see.

Hurricanes, Natural Disasters and Science

9 Replies Jonny Hankins

EDITOR NOTE: Congratulations to Jonny, this is his 50th post on Technology Bloggers! Feel free to thank him for his fantastic contribution to the blog with a comment 🙂 – note by Christopher

This is my 50th post and I am very pleased, so once again I would like to try to propose something a little different.

This week I have experienced my second hurricane, Sandy passed through Boston where I currently reside, tearing up trees, bringing down power lines and bucketing tons of water upon us. The disaster seen in New York was not replicated here, but we are still in a state of emergency with millions of people without power.

One interesting aspect about the whole affair was watching the state prepare for something that it could not really fully understand. The authorities did not know where the hurricane would hit land, or how much damage it would do. They had to rely on scientists’ models and experience to make plans and try to save lives and limit damage.

Car crushed outside

A car crushed by a fallen tree on our street

Which all brings me on to the topic for today’s post, scientific advice.

Another disaster is in the news this week from my other home country, Italy. 6 of Italy’s leading scientists and one ex government official have received prison terms for offering falsely reassuring advice immediately before the 2009 Aquila earthquake. They were each found guilty on multiple counts of manslaughter after more than 300 people died in the catastrophe. The BBC has a short article on the proceedings and sentence here.

All members of the National Commission for the Forecast and Prevention of Major Risks, they were accused of having provided “inaccurate, incomplete and contradictory” information about the danger of the tremors felt ahead of the quake. There had been a series of smaller tremors in the weeks and months preceding the larger one on 6th April, but the Commission had suggested that this did not mean that a larger quake was on its way.

They were wrong however, but many members of the scientific community have come to their defense, stating that earthquakes are inherently unpredictable, technology does not allow accurate prediction, and that a series of tremors such as those seen in Aquila only lead to a major quake on about 1% of occasions.

The Scientists found guilty are amongst the most respected geologists and seismologists in Italy, and this leads me to ask several questions. Who can we ask for advice in order to prepare for disasters if the best scientists are not able to provide the answers? What effect will this ruling have upon the scientific community and their willingness to give advice on such matters? Can we hold scientists responsible for such events? What effect does politics have on their decision making and advice to the public?

Here during hurricane Sandy several local government officials were criticized for not implementing evacuation procedures that were called for by central government upon advice given by scientists, and I would ask if the fact that there was loss of life might have been avoided. We all knew it was coming!

These points above could also be made about other problems, the obvious one being climate change. There are several articles on this website that address this issue including my own ‘Health of the Planet‘ series, but once more the entire subject is bogged down with political versus scientific arguments.

We are talking about risk here, and risk is not an easy thing to assess or to communicate. The Aquila scientists may argue that the 1% risk is minimal after a series of smaller shocks, but the risk may also be greatly magnified from a starting point of no shocks. A great deal is in the phrasing, and phrasing may be political.

Last year, here in Cambridge Massachusetts, I interviewed our local Congressman, Michael Capuano on the problems of making political decisions regarding science, and you can see a transcription here if you like. It makes for interesting reading.

A Possible Breakthrough in Energy Storage?

5 Replies Jonny Hankins

The Institute of Mechanic Engineers says that turning air into liquid may provide a solution for energy storage. At present most energy is stored in batteries, but battery production and disposal is an extremely messy and polluting affair, and so experiments are underway to look into this alternative.

One of the problems particularly with renewable energy sources is that energy is produced at times when it is not needed. The system cannot just be turned on or off, so this excess energy must be stored. Scientists believe that with improvements the liquid energy solution could be 70% efficient, less than batteries but at a much lighter cost to the environment.

To give you an idea of how the process works, it follows a number of stages:

“Wrong-time electricity” is used to take in air, remove the CO2 and water vapour, which would otherwise freeze solid.

The remaining air, mostly nitrogen, is chilled to -190C (-310F) and turns to liquid – this provides a compact storage medium that can later draw energy in the form of heat from the environment.

The liquid air is held in a giant vacuum flask until it is needed.

When demand for power rises, the liquid is warmed to ambient temperature. As it vaporizes, the expanding gas drives a turbine to produce electricity – no combustion is involved.

One particularly interesting thing about this development is that it comes out of a garage in England.

Peter Dearman in his garage

Inventor Peter Dearman in his garage lab

Peter Dearman made the discovery while looking for a way to power his car using air. I have written about these types of experiments before in my Health of the Planet series. Take a look at this video on Youtube to see Dearman at work. Real Chitty Chitty Bang Bang stuff.

The BBC also has an article in its Science and Environment section that you can read here.

One conclusion to draw is that world changing technological innovation has to start somewhere, and it is not always in a sterile lab. Sometimes it is in a garage behind a house in Hertfordshire.