Showing posts with label population. Show all posts
Showing posts with label population. Show all posts

Monday, April 18, 2011

More of the same. And then...

How better lose reader than with a headline like that? (I know: a going nowhere leading text like this one.) Well, while writing up this blog in report format a couple of links have piled up.

First: more of the two obvious ones

From Population growth, climate change raising odds of war over water, forum hears:

"Water resources in themselves have rarely been the sole source of conflict or war. Unfortunately, our global water situation is changing rapidly and may soon no longer resemble anything that has existed on earth before. The tensions and conflicts over water of the kind that have typically occurred in the past will soon represent only one of many emerging explosive hydro-climatic issues that are likely to bring sovereign nations into internal and external discord that could erupt in violence. Humanity's numbers appear to be the greatest threat to water security globally. We have created a hydroclimatic bomb, and that bomb has started to tick. But we don't know how big the bomb is or where or when it will go off."
- Bob Sandford, Canadian water-policy expert

Random fact from the article: 25% of water conflicts of the last five millennium occurred with the last decade.

Next: sweeping ones own doorstep, shipping off the dirt

Center for American Progress asks the hard question in Coal-Fired Conflict: Enabling Exports Clouds Environmental and Economic Goals:
if [a country] is serious about combating the perils of climate change through economic and environmental transformation, should [that country] really be encouraging the export of [home extracted] coal to [foreign] markets?

While it may improve carbon credit accounting exported coal will pollute the same atmosphere exactly as much and even more due to the transportation.

"Coal is a dead man walkin'. Banks won't finance them. Insurance companies won't insure them. The EPA is coming after them...and the economics to make it clean don't work."
- Kevin Parker, Deutsche Bank

If the United States is to assume a position of world leadership in the effort to reduce global warming pollution, and if it is to commit more fully to a clean energy future with its attendant economic, health, and environmental benefits, it makes little sense for policymakers to facilitate significant increases in coal exports.

Finally: Environmental laws to trigger trade wars

If you can stomach it, read Reuters / Canada warns EU of trade conflict over oil sands. Truly depressing testimony to the obstacles environmentalism and common sense is facing.

According to a leaked letter from the Canadian government to the EU, a proposed European tax on dirty energy is in their eyes an "unnecessary barrier". The fact that tar sand oils are one of the most polluting energy resources available is to the Canadians "not supported by the science".

The Canadians are already suing Europe at World Trade Organization level on issues like hormone-treated beef, genetically modified foods, seal products and more - their free trade "right" to spam the world with tar sand oil would simply add another to the list. Shame on Canada.

Extra, extra: The interesting one!

Check out this interesting discussion at reddit / The storms that hit the US this weekend killed more American civilians in a single day than terrorists have in the last 9 years.

Most comments are either simply about the tornadoes, about surviving a tornado, about possible lack of warning systems in the US... and then some are quite funny and on our topic:

Hair dryers have killed more American civilians than terrorists have in the last 9 years, what's your point?
- eeepc

His point is that we need to start a WAR ON TORNADOES!
- Xsophos

Tornados hate us for our freedoms!!!!
- javo93

They are a threat to national security!
- TheWhyGuy

They did target 3 military bases and yet no response yet???
- enthreeoh



Monday, October 25, 2010

How many people can live on Planet Earth? Watch this BBC documentary!

Whether you're discussing water resources, food security, climate change, migration, developing countries or pretty much any geopolitical or human ecological topic there is one other topic often avoided: Overpopulation. Watch this 58 minute BBC documentary on YouTube.





Regarding "Ecowar relevance" the following parts are especially interesting.

14 min: Value of ecosystem services
Doug Hamilton, International Space Station.
"When you see how hard it is to reproduce what Mother Nature does every day for all of us you begin to really appreciate the world that you have."
17 min: Water
Mexican government emergency water truck driver.
"At some time in the future wars are going to be fought over water, not oil. But people don't seem to understand."
27 min: Land grabs
Chinese, Saudi Arabian and British "land grabs". Most are in Africa which already has trouble feeding itself.
In the 29th minute a segment about Rwanda begins... Then there is peak oil, carrying capacity, relative ecological footprints, Indian family planning... almost the entire package.

Thank you David Attenborough and BBC. And thank you EJC for alerting me of this program.



Saturday, May 09, 2009

Ecowar movies: Edutainment suggestions

Noticing the clamour over the new animated movie Battle for Terra (or just Terra) and it's interesting theme I put it on my Must See list - right next to Blood Diamond which is way over due. Then the logical idea came: make a list of movies for Ecowar!

Only four movies made it onto the list so far. But I would love to get recommendations for more! Please spam.

Battle for Terra
"A peaceful alien planet faces annihilation, as the homeless remainder of the human race sets its eyes on Terra. Mala, a rebellious Terrian teenager, will do everything she can to stop it." - IMDb plot
US Republican reviewers are all up in arms about this one. They say it's "Bush Bashing". I don't know what to think about that - especially since I haven't watched it yet. But in an interview with the writer he explained the rationale for the story as him not buying into the premise of War of the Worlds - that an entire species should be "evil". Seems very reasonable to me! Thus far in human history new territory has been considered something to exploit. Why not an inhabited planet? We might be in need of some planetary migration before we know it.

The Happening
"A strange, horrible and unprecedented crisis begins in Central Park. A high school science teacher, his wife and a young girl do what they can to survive it." - IMDb plot
Many would argue the science in this one is about as far out as the science in The Matrix. I don't think it is, although it's taken to quite a cinematic extreme. It's Gaia Theory. Somehow the human population pressure provokes a seriously negative feedback. It's not a very good movie due to various factors but it has it's moments. Like this line:
Nursery Owner: "You know plants have the ability to target specific threats. Tobacco plants when attacked by heliothis caterpillars will send out a chemical attracting wasps to kill just those caterpillars. We don't know how plants obtain these abilities, they just evolve very rapidly."
There Will Be Blood
A story about family, greed, religion, and oil, centered around a turn-of-the-century prospector in the early days of the business." - IMDb plot
No way I could omit this masterpiece although the conflict is largely explained in metaphorical measures and business rivalry.

Blood Diamond
A fisherman, a smuggler, and a syndicate of businessmen match wits over the possession of a priceless diamond. - IMDb plot
My final choice is also the least fictional - I suppose because as I mentioned I haven't watched it. Yet! Said to be a bit "tough" to watch.

Of course, there are movies about some of the wars that I have blogged about here. But I have a hard time thinking of any that really touches upon the ecowar issue. Also, I have excluded The Matrix trilogy - because blocking the sun is simply so stupid no one would ever consider it (think twice) and because the science in it isn't always that educational (human batteries?).

Monday, February 23, 2009

Afghans killed... by pollution too

Three decades of war and severe drought have already damaged the country's environment with widespread desertification and deforestation and loss of vegetation and wildlife, deputy head of Afghanistan's National Environmental Protection Agency said.

But now, overpopulation in Afghanistan's cities, the burning of poor quality fuel, thousands of imported old cars, no proper waste management or sewage system and a boom in construction, have worsened air pollution, Jarullah Mansoori said.

[...]

"We are three times more polluted than the other capitals in the region. If everything is left as it is now, after two or three years, we will not be able to live in Kabul, said Mansoori.

"We will have to leave for another place, where we can find clean air, clean water and clean food. This is called environmental migration. When environmental migration takes place then it's a huge social problem," he said.

Friday, September 12, 2008

Spy Agencies to Warn New President of Warming’s Dangers

Population explosions in poor regions were also labeled a top threat recently by [the CIA]. One way to avoid the economic dangers in places where population is aging and shrinking is to foster immigration. Here, Mr. Fingar sees European countries and Japan as fighting the very influx of people that could help avert turmoil.


I can attest to my country (Denmark) being "on a good day, highly chauvinistic" as the CIA guy puts it.

New York Times' whole Dot Earth thing is a recommended RSS feed for your reader.

Tuesday, August 26, 2008

Three cases of migration and conflict: Hurricane Katrina, Bangladesh and The Dust Bowl

"Environmental change can trigger large out-migration, which can cause violent conflict in areas receiving migrants."

A peer reviewed article on environmental migration would fit right into my little project here, right? As I realized Reuveny's Ecomigration and Violent Conflict: Case Studies and Public Policy Implications was a look at only three incidents and that two of these were from the USA my expectations dropped somewhat. Most of this is supposed to be going on in Africa, right?

Well, when the cases from the world's most affluent nation only confirms what speculation you have on the third world... this is a rather interesting article. The three cases are the 1930'ies US Dust Bowl [Wikipedia], Bangladesh since the 1950'ies especially the Farakka Barrage situation [Wikipedia] and August 2005's Hurricane Katrina [Wikipedia]. It's main conclusion you have already read above. But I'll look into a few details...

The theory

Standard migration theory operates with economic, political and other forces - not environmental. Doing so could have serious implications as governments have signed treaties to accept political refugees, not "environmental". However, already in 1985 a paper on droughts and land degradation in sub-Saharan countries concluded these problems caused "population movements".

I think it's pretty much stating the obvious: If you live from the land and suddenly you can't, you're a lot more likely to simply leave the area. It's a different type of border you seek to cross though: While "traditional migrants" would seek to cross a cultural or political border, environmental migrants just wish to leave the stricken area.

The mechanics of "ecomigration" issues is described in four non-exclusive parts:

  • "the in-migration can burden the destination's economy and resources, promoting native-migrant competition for jobs and other resources"

  • "the arrival of in-migrants may upset the existing ethnic balance"

  • "in-migration can enable ploys to exploit the situation and induce suspicions about such ploys"

  • "the conflict may follow existing fault lines"



In-migration is more likely to cause trouble in poor receiving counties than in rich. And migrating women, children and elderly having family ties in the receiving area are least likely to cause conflict. Trouble risk is also correlated to migration mass and period: the more and the faster the more problematic.

Reuveny finishes his theoretical stuff with a pinch of optimism:
"Migration can benefit the receiving area through several channels, including increasing the labor force and tax-base."


The cases

In the 1930s the US Great Plains were stricken by droughts and storms while the area's agricultural practices were far from geared towards the situation. Massive soil erosion and obvious declines in life quality resulted. The area was now called The Dust Bowl. Close to 2.5 million people out-migrated.

Most went to neighboring states but about 300,000 traveled to California. They were received as "ignorant filthy people", called "Okies", some argued Bible in hand that they were "inferior" and it was even suggested to pay them to be sterilized. They were beaten, their shacks burned and they were accused of "communism". In 1936 Los Angeles police stopped migrants at the state border. Welcome to California.

The Bangladesh case is a bit more typical. A small less developed country with a huge and growing population strains it's natural resources to a breaking point. It's geography happens to make it particularly vulnerable to both accumulated environmental stresses (soil erosion etc.) and periodic natural disasters (namely floods).

Then in 1975 the neighboring country builds a barrage, diverting water away from Bangladesh. Salt water intrudes the sinking fresh water resources and land productivity plummet. 35 million people were directly affected.

Some 12 to 17 million Bangladeshis have migrated illegally to India and about half a million to other areas in Bangladesh. Migrants have since clashed with residents over social, ethnic, religious, national and other proximate issues. Countless people have been killed in clashes.

Reading about Hurricane Katrina is particularly weird as this is fresh from TV memory. But as it turns out the case fits right in.

A combination of human and natural factors combined to aggravate a disaster situation: the Mississippi River had been turned into a maritime highway destroying natural sedimentation, land clearing and draining of swamps eliminated natural coastline protection, compromises led to levee building only protecting from hurricanes level 3. The false sense of security from the levee only led to more risky development.

80% of the population fled the area when weather forecasts told of the impending hurricane. Including 100,000 elderly and poor who were evacuated by the government. Shortly after Hurricane Rita hit too and US government estimates a total of nearly 2 million people were displaced.

As we all remember, New Orleans was smashed. One year after Katrina hit 2,180 people had died as a direct consequence of the storm, more than 200,000 people lost their jobs, about 335,000 homes were destroyed and only about 40% of New Orleans' population had returned.

Across the river from New Orleans the city of Gretna [Google Maps] had police block the entry of displaced people firing warning shots in the process. Rhode Island, South Carolina and West Virginia insisted more than half the evacuees they'd accepted were violent criminals. The city of Houston reported a rise in homicides of 70% in November and December 2005 and 28% in February 2006 compared to normals. March 2006 75% of Houston residents answered a poll they felt "strained" by the 150,000 migrants living there.

Reuveny sees three main similarities: The three societies all depended on their environments for livelihood, human actions or lack thereof exacerbated the disasters and political, economic, sociological and psychological factors overlapped with environmental ones. A number of obvious differences are mentioned too.


Climate change is expected to cause a wide array of disasters and stresses on our ecosystem. Sea level rise is just one of them. Flickr Creative Commons image is "Climate Change Refugees" by ItzaFineDay.


Can climate change cause migration and conflict in the future?

Reuveny says "yes". The evidence of impact scale is worrying already; history is there to suggest it will repeat itself.

If sea levels rise by just 1 meter more than 260 million people will be exposed to flooding. (Yes, that was two hundred and sixty million individual humans) Most of these Asians but at least some 14 million Europeans too. These people will have to move somewhere. Imagine something like 130 Katrinas but with permanent land loss and in countries less able to cope with the situation. Bitterly ironic since climate change is largely caused by rich, developed countries.

A set of initiatives for alleviation or solution is also proposed, but I dare not post it uncensored in the mere blogosphere. But Reuveny feels it's safe to assume...
"[...] the expected cost of climate change-induced ecomigration and conflict will likely rise quickly [...]"




ResearchBlogging.org

Reuveny, R. (2008). Ecomigration and Violent Conflict: Case Studies and Public Policy Implications. Human Ecology, 36(1), 1-13. DOI: 10.1007/s10745-007-9142-5


Wednesday, July 30, 2008

Environmental degradation kills 62 million people each year

Do you think the headline figure sounds a little bit too high? Perhaps you are right because the year 2007 study I just read includes such causes of death as AIDS and second hand smoking. But rather than being just a look at the body count it's actually an assessment of the relationship between population growth and escalating degradation of the environment and how both factors kill people.

This blog usually deals with typical conflict caused or inspired by natural resources. Population growth is essentially only a problem because of the limited space available hence I think it's fair to say the problems it causes are also 'environment problems'. The closer we live the more we expose each other to our diseases and the various toxins we produce, consume and waste. The more people we are the more food we need - the more biosphere we consume and industrialize, the closer we keep our livestock and the more of us go hungry. And the more hazardous the environment we live in, the more likely we are to kill our neighbor and run off with his.

The top three killers



#3: Tuberculosis
Blowing soil can contain many different pathogens - tuberculosis (TB), anthrax et cetera. Industrialized agriculture and deforestation are the main reasons for erosion by wind of contaminated soil. Just an example of how the various issues are intrinsically linked. Right now about 2 billion people (absurd) are infected with TB and 3 million people will die each year.

#2: Diarrhea
Hastily erected housing and slum suffer from bad sanitation. Bad sanitation - or none at all - will cause various health issues. But 2.5 billion people lack adequate sanitation. Proper sanitation could have hindered most of the 4 billion annual diarrhea infections as well as most of the 2.1 million deaths. Totally, lack of sanitation is estimated to kill more than 5 million people each year by various means.

#1: Malnutrition
People who don't eat right or just not enough are more susceptible to many other problems. The soil erosion mentioned, caused by industrialized agriculture, is not only spreading diseases and diminishing our arable land area - crop productivity per area is drastically reduced. Causing more malnutrition. 6 million children die from malnutrition issues each year. 2.5 million die from vitamin A deficiency and 9 million from iron deficiency. A staggering total of about 18 million people dies from malnutrition each year.

Honorable mention is deserved in the case of air pollution problems (3 million), asthma (2.1 million), malaria (1.2-2.7 million) and measles (1.1 million).

But we're getting better, right?


On the Bjørn Lomborg show, perhaps. In the real world, no. From 1970 to 2002 the number of cancer cases climbed from 331,000 to 563,000 in the USA alone; mostly caused by chemical pollutants. From 1940 to 2007 women's risk of breast cancer went from 1/22 to 1/7. From 1971 to 1986 malaria increased by 76% in Brazil; mostly caused by deforestation. From 1950 to 2007 the number of malnourished people went from about 500 million or 20% to 3.7 billion or 60%. Iron intake is going down along with the rest of the measures of food quality. Antibiotics go useless as pathogens evolve resistance do to our overuse. I could go on and on...

New problems in a new environment


SARS evolved because people and livestock crowded in China. Almost the same story with avian flu. Neither has killed that many people yet, but they are new problems with high mortality rates.

Construction of dams has increased the number of snails that host schistosomiasis [Wikipedia] and climate change is creating an environment more suitable for them. Schistosomiasis has now spread to areas where it was never seen before, infecting more than 200 million people, killing as many as 200,000 annually. Global warming also helps spread malaria and many other diseases. Our massive consumption of fossilized fuels seems to be at the root of so many of our problems. (And what do we do? Use more of it waging wars over the remaining sources of it.)

Salmonella, E. coli and Campylobacter microbes infect our increasingly crowded livestock while new diseases evolve in unsanitary industrialized slaughterhouses.

While I think I insist HIV isn't an environmental issue, infected people help spread numerous other diseases. Wars and urbanization undoubtedly help spread both. Our biosphere is a complex system. Any change in a complex system will produce numerous other changes and will always cause crisis somewhere. I wrote it already: I could go on and on...


ResearchBlogging.org

Pimentel, D., Cooperstein, S., Randell, H., Filiberto, D., Sorrentino, S., Kaye, B., Nicklin, C., Yagi, J., Brian, J., O'Hern, J., Habas, A., Weinstein, C. (2007). Ecology of Increasing Diseases: Population Growth and Environmental Degradation. Human Ecology, 35(6), 653-668. DOI: 10.1007/s10745-007-9128-3

Friday, March 07, 2008

Climate change and conflict frequency

The cornerstone of this blog here is a peer reviewed correlation of climate and war in historical China: see my first post from July 2007. I just wrote a thorough summary of the article at Shvoong.com; here's a shorter version and my own take on it.

Short summary



Zhang's study is a thorough mathematical correlation from climate to war frequency done on a macro-historical level. Warfare has already been theoretically described as an adaptive ecological strategy of humankind in situations of limited resources. Zhang provides some empirical evidence to go with the theory. The hypothesis of the study is that climate changes has catalyzed historical events by it's importance for agricultural productivity, and that temperature is the most important climatic factor due to it's very direct effect on growing season lengths, precipitation reliability, summer warmth etc.

The data used for the analysis are comprised of China's extensive historical records literally body counting 3 millennia back in time and a set of five different weather data measurements merged into one. The war data was pruned to 899 wars between year 1000 and 1911. The weather data synchronized with emphasis on the most reliable methods all of which correlate beautifully in regard to oscillations. Population data are available from year 1741 to 1851 "only".

The cold periods are defined by time frames of significantly low average temperatures. The cyclical pattern and the correlation is not just an abstract figure somewhat closer to 1 than 0. It is quite obvious how cold phases coincide with periods of high war frequency. The war periods generally lag the onset of cold phases by 10 to 30 years which makes sense since it would take some time for the reduced agricultural productivity to manifest as resource limitations and overpopulation.

The study goes into more detail; ie correlations are particularly strong for wars of type "rebellion" and stronger in the (wet, warm) south than in the (arid, cold) north. The north-south difference is explained by historical attitudes towards migration. Population growth is seen to rise (to 1.3%) during the 1741-1805 warm phase and drop (to 0.6%) during the 1806-1850 cold phase.

Zhang argues past research has been simplifying history, reducing causes of warfare to financial, political and ethnic ones while largely ignoring the ecosystem. Zhang emphasizes how current global warming is different from the warm phases of his study. However, his last words are that even if the developed world gets by most people still rely on simple farming techniques that are highly susceptible to ecological stress and that shortages of essential resources may "very likely" trigger future conflicts among groups of people.

Ecowar?



So, what does Zhang tell Ecowar? "Keep blogging"! Zhang must have been looking at some inconclusive data wondering pretty much the same thing I'm wondering when looking at the news of the world.

I have posted a bit about Jared Diamond who's straight out explaining some violence with what's basically "ecological stress". While Zhang highlights temperature drops, what we're mostly seeing right now is issues sparked from a temperature rise, ie drought. My Darfur: Drought or Islamism? post has the whole issue in it's little nutshell. Just like the Chinese food shortages inspired "rebellion", rising food prices gets today's consumers "up in arms". The UN has read the writing on the wall and has analyzed the Security risk of climate change. Et cetera, click backwards in time on my blog if you like. There are also more peer reviewed research on the subject out there which I plan to blog some time.

My enthusiasm when beginning this blog was fueled by the publication of Zhangs study. Although all I'd read was a journalist's interpretation. That article has now been pulled from the web. At the same time I have grown as weary of pseudo-science and political rants dressed as science in the blogosphere. So what better opportunity to introduce my flashy new Research Blogging icon!?


ResearchBlogging.org

Zhang, D.D., Zhang, J., Lee, H.F., He, Y. (2007). Climate Change and War Frequency in Eastern China over the Last Millennium. Human Ecology, 35(4), 403-414. DOI: 10.1007/s10745-007-9115-8


This basically means my post is about a piece of peer reviewed scientific work that I have read and understand myself. As well as a number of other criteria you can check out at Research Blogging. Anyway, I hope I just reinserted my cornerstone.


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