Sunday, November 20, 2011

Employment Rates (NOT Unemployment Rates) in 15 Countries from 2006 to 2010

Previously (on August 9, 2011), I compared unemployment rates of 15 countries.
I think I made a naive comparison. While unemployment rates are calculated by each country using their own methodologies, employment rates give little confusion by being estimated with obvious numbers. The employment rate measures the ratio of employed people in certain age groups. The unemployment comparison graph in the previous post gave me (us) a misguiding impression that certain countries' economies have been well performing while their actual employment rates were not so good, and vice versa.

Today, I am trying to compare "employment rates" of the same 15 countries from 2006 to 2010.

I want to share two figures of employment rates calculated with different methods.

The first figure is made by the OECD. The OECD calculated the employment rates by measuring the ratio of employed people among the population between ages 15 to 64. (In this figure, China's data are missing.)

Data: OECD (2011)

In this figure, we can see how the employment rate estimation tells us a different story from the unemployment rate statistics. High unemployment rates do NOT mean low employment rates. Contrary to an intuitive conception, some countries with low unemployment rates are NOT always showing high employment rates, either.
In the previous post, Iceland's unemployment rate skyrocketed since 2008. However, as we can see from the above figure, its employment rates are still higher than all countries.
Although Korea's unemployment rates were low in the previous post, they don't translate into high employment rates in the above figure.
Italy's lowest employment rates among these countries are hard to explain, too. In the previous post, its unemployment rates were not worse than those of such countries as Spain, Ireland, and Greece.

The second figure estimates the ratio of the employed people among the population aged 15 or older, without an upper age limit. It is estimated by the International Labour Organization (ILO).

Data: ILO (2011)

In this second figure, most countries have shown downward slopes in employment rates since the global financial crisis shook the global economy in 2008. It is not so much different from the first figure.
However, I want to point out some interesting observations.
Now, China is enjoying the best employment rates. 71% of its working-age population is employed.
Although Iceland has experienced a deep drop of employment rates, it still shows a robust employment rate.
The fact that employment rates in Brazil and Germany didn't get worse during 2008-2010 is consistent with the descending unemployment rates observed in the previous post.
A notable contrast is between the United States and South Korea. In the first figure, the United States' employment rate was well above South Korea's even after the economic recession. In the second figure, however,  the United States' employment rate went down below that of South Korea in 2010. From the ILO's standards, the United States' employment condition became worse than that of South Korea.

I'm not so sure whether these employment rate estimations are better or more correct than the unemployment rate estimations. But we have to look into employment rates if we don't want to be confused by different unemployment rate calculation methods among countries.



Sources:

ILO. (2011). Key Indicators of the Labour Market (KILM) (7th ed.). Genève, Switzerland: International Labour Organization. Retrieved from http://kilm.ilo.org

OECD. (2011). OECD Employment Outlook 2011. Paris, France: Organisation for Economic Co-operation and Development. Retrieved from http://www.oecd.org/employment/outlook

Tuesday, November 1, 2011

Two Reports: A Lot More Radiation Was Released from Fukushima Dai-ichi Than Japan's Official Estimations

Recent research revealed that far more radiation was released into the atmosphere and ocean from Fukushima Dai-ichi nuclear power plant than the Japanese government and TEPCO have estimated.

1. Atmosphere
Stohl et al. (2011) argue that 35.8 peta Bq of cesium-137 was released into the atmosphere, which is twice the Japanese government's estimations (cesium-137 = 13 peta Bq (JAEA) or 15 peta Bq (NISA)).

2. Ocean
Institut de Radioprotection et de Sûreté Nucléaire (IRSN) estimated that 27 peta Bq of cesium-137 was released into the ocean, which is 20 times as much as TEPCO's estimation (Cesium-137 = 1 peta Bq) or 6 times the Japanese government's estimation (cesium-137 = 4 peta Bq (JAEA)).


Notes:
JAEA  = Japan Atomic Energy Agency
NISA  = Nuclear and Industrial Safety Agency
TEPCO = Tokyo Electric Power Company


Sources:

Institut de Radioprotection et de Sûreté Nucléaire. (2011). Synthèse actualisée des connaissances relatives à l’impact sur le milieu marin des rejets radioactifs du site nucléaire accidenté de Fukushima Dai-ichi. Fontenay-aux-Roses, France: Institut de Radioprotection et de Sûreté Nucléaire. Retrieved from goo.gl/6Rtql
Rough English translation: http://houseoffoust.com/group/?p=3818

Kawamura, H., Kobayashi, T., Furuno, A., In, T., Ishikawa, Y., Nakayama, T., . . . Awaji, T. (2011). Preliminary Numerical Experiments on Oceanic Dispersion of 131I and 137Cs Discharged into the Ocean because of the Fukushima Daiichi Nuclear Power Plant Disaster. Journal of Nuclear Science and Technology, 48(11), 1349-1356. doi: 10.3327/jnst.48.1349

Stohl, A., Seibert, P., Wotawa, G., Arnold, D., Burkhart, J. F., Eckhardt, S., Tapia, C., Vargas, A., & Yasunari, T. J. (2011). Xenon-133 and caesium-137 releases into the atmosphere from the Fukushima Dai-ichi nuclear power plant: determination of the source term, atmospheric dispersion, and deposition. Atmospheric Chemistry and Physics Discussion, 11, 28319-28394. doi: 10.5194/acpd-11-28319-2011

Friday, September 30, 2011

Per capita CO2 emissions in 15 worst countries, 2006-2010

The Netherlands' Environmental Assessment Agency (or PBL, Planbureau voor de Leefomgeving) published its own assessment of global CO2 emissions by country.
How much CO2 have the 2010's 15 worst emitters been spewing out into the atmosphere over the past five years?


Figure. CO2 emissions per capita from fossil fuel use and cement production
(Source: PBL, 2011)

Even after the global financial crisis began in 2008, five countries (Saudi Arabia, South Korea, China, Indonesia, and India) didn't stop increasing per capita CO2 emissions. Never.

They are not worse than USA or Russia who are emitting enough greenhouse gases. However, the five countries' ceaseless emissions growth makes their efforts for climate change mitigation well short of that of other countries. We can see the evidence from the following figure. It is comparing each country's pledges to reduce their greenhouse gas emissions by 2020.


Figure. Percent change in absolute emissions from 1990 levels in 2020
(Source: Pew Center on Global Climate Change, 2011)

Sources:

Olivier, J. G. J., Janssens-Maenhout, G., Peters, J. A. H. W., & Wilson, J. (2011). Long-Term Trend in Global CO2 Emissions: 2011 Report. The Hague, the Netherlands: Netherlands Environmental Assessment Agency (PBL; Planbureau voor de Leefomgeving). [Full-text: http://j.mp/PBL_Text; data: http://j.mp/PBL_Data]

Pew Center on Global Climate Change. (2011). Common Metrics: Comparing Countries' Climate Pledges. Arlington, VA: Pew Center on Global Climate Change. [Full-text at http://www.pewclimate.org/docUploads/country-pledge-brief.pdf]

Tuesday, August 23, 2011

Virginia earthquake and a nuclear power station


I tried to measure the distance between the Virginia epicenter of today's earthquake (magnitude 5.9) and its nearby nuclear power plant.
If you click on the link below,
you'll find they are only 11.64 miles (18.73 kilometers) apart!!!!!


View Earthquake and Nuclear Power in a larger map

Tuesday, August 9, 2011

Unemployment Rates in 15 Countries from 2006 to 2010

How does unemployment rate reflect economic crisis in some countries?
I looked at 15 countries I am interested in, some of which are troubled and others are struggling.
The following figure is based on the IMF's estimation.
It seems that workers in Spain, Ireland, and Greece are in the worst situation.
Descending unemployment rates in Germany and Brazil undeterred by the global financial crisis are worth further study.
Asian-Pacific countries are not stricken so hard by the financial crisis.
In addition, a dramatic change in Icelandic unemployment rates is noticeable.

Source: International Monetary Fund. (2011). World Economic Outlook Database, April 2011.  Retrieved from http://www.imf.org/external/pubs/ft/weo/2011/01/weodata/download.aspx

Friday, June 24, 2011

An e-book on climate change (science, adaptation, and mitigation)

Australia's national science agency CSIRO (Commonwealth Scientific and Industrial Research Organisation) is providing their latest e-book on climate change science and policy at no charge (in pdf and ePUB formats).
Although this book is primarily written for Australian readers, its eye-catching figures and kind readings lists of latest literature at each chapter's end will be very helpful to foreigners as well.

Cleugh, H., Smith, M. S., Battaglia, M., & Graham, P. (Eds.). (2011). Climate Change: Science and Solutions for Australia. Collingwood, Australia: CSIRO Publishing.
[Full-text pdf at http://j.mp/Climate_Change_pdf; full-text epub at http://j.mp/Climate_Change_ePUB]

Contents
Foreword .................................................... v
Megan Clark
List of authors ........................................... vii
Acknowledgements ......................................... viii
Introduction ............................................... ix
Bruce Mapstone
Chapter 1. Observations of global and Australian climate .....1
Karl Braganza and John A Church
Chapter 2. Climate and greenhouse gases .....................15
Michael Raupach and Paul Fraser
Chapter 3. Future Australian climate scenarios ..............35
Penny Whetton
Chapter 4. Climate change impacts ...........................45
Kevin Hennessy
Chapter 5. Adaptation: reducing risk, gaining opportunity ...59
Mark Stafford Smith and Andrew Ash
Chapter 6. Adapting to heatwaves and coastal flooding .......73
Xiaoming Wang and Ryan RJ McAllister
Chapter 7. Adapting agriculture to climate change ...........85
Chris Stokes and Mark Howden
Chapter 8. Greenhouse gas mitigation: sources and sinks in
agriculture and forestry ....................................97
Michael Battaglia
Chapter 9. Mitigation strategies for energy and transport ..109
Jim Smitham, Jenny Hayward, Paul Graham, and John Carras
Chapter 10. Reducing energy demand: the imperative for
behavioural change .........................................127
Peta Ashworth
Chapter 11. Responding to a changing climate................135
Helen Cleugh, Mark Stafford Smith, Michael Battaglia, and 
Paul Graham
Endnotes ...................................................139
Index .............................. .......................153

Monday, June 13, 2011

U.S. Utilities: In Two Ns, We Trust (Even After Fukushima)

According to an energy consulting company Black & Veatch's survey of 530 plus utility respondents, the U.S. energy companies still rely on two Ns (nuclear and natural gas) for their future to comply with environmental regulations. The survey was conducted after tsunami crippled the Fukushima Dai-ich nuclear power plants. But their creed didn't change:

Q. Where do you believe the industry should place its emphasis on environmentally friendly technologies?
A. (The bigger the number, the more emphasis the utility respondents place upon the technology)

1) Nuclear Energy    3.87
2) Natural Gas       3.81
3) Hydroelectric     3.48
4) Solar Energy      3.37
5) Coal Gasification 3.27
6) Wind Power        3.18
7) Other             3.07
8) Biomass           3.01
9) Tidal Generation  2.93

They are not so sure of renewable energy's reliability. They even don't trust future of energy storage. How do I know that? Read the following Q&A.

Q. Do you have plans to implement any energy storage systems at a commercial scale?
A.
Yes 21.5%
No  78.5%

Sadly, now I acknowledge that Texan journalist Robert Bryce was right when he argued the "real fuels of the future" are the two Ns (he called the 2-N energy strategy "N2N", that is, 'natural gas first, and nuclear eventually') even before the Fukushima nuclear accident. (And recently, in the New York Times.)
Is two-N reliance or N2N strategy inevitable? I hope not. (Yeah, another 'hope,' I uttered. However, I will find any convincing science and policy that can persuade these utility respondents.)

Sources:

Black & Veatch Corporation. (2011). 2011 Strategic Directions Survey Results: Managing the Transition in the Electric Utility Industry. Overland Park, KS: Black & Veatch Corporation. [Full-text at http://j.mp/BV_Survey_2011]

Bryce, R. (2010). Power Hungry: The Myths of "Green" Energy and the Real Fuels of the Future. New York, NY: PublicAffairs. [Book homepage at http://j.mp/Power_Hungry]

Bryce, R. (2011, June 7). The Gas Is Greener. The New York Times. Retrieved from http://www.nytimes.com/2011/06/08/opinion/08bryce.html