agora, sobre as atribulações de um independente de esquerda nestes tempos da III República ...
5 de março de 2016
Este é o melhor argumento que vi desenvolvido em favor da Uber: vejam o vídeo.
21 de dezembro de 2009
Ora, aqui está um sugestão de oferta de um livro a um seu amigo, honesto, capaz de ler em inglês, que "acredite" ser esta "moda" da ecologia e das alterações climáticas mais uma tontice esquerdista como o Professor Pacheco Pereira, lucidamente, aponta... Ou, você já sabia disto? ... Ou, você considera tudo isto uma peça de desinformação da cabala para criar um estado mundial como um cronista do Diário Económico afirmou há algumas semanas atrás? ... Ou, você ignora que o tribunal já iniciou o seu julgamento, e que "o desconhecimento da lei (da verdade) a ninguém aproveita (não pode ser invocado)".
Consequência:
On environment, Obama and scientists take hit in poll - washingtonpost.com: "There's also rising public doubt and growing political polarization about what scientists have to say on the environment, and a widespread perception that there is a lot of disagreement among scientists about whether global warming is happening."
No entretanto:
Further reading of stolen emails reveals scientists searching for the truth « Climate Progress: "I have spent the last week reading far more emails belonging to other people than I ever would have liked. While a number of the emails have been flogged around the blogosphere and captured much of the attention, I found that a lot of emails worth seeing have gotten no attention at all. Including some that show that the denialista’s claims of a grand conspiracy is more of a grand hallucination. Because the stolen emails contain plenty of discussions that reveal just how hard the scientists work to make sure they are getting the information right. That’s Pete Altman, NRDC’s Climate Campaign Director, writing last week on the Switchboard blog on the stolen emails you haven’t heard about."
7 de agosto de 2009
Sacos de plástico
8 de julho de 2009
Da tese sobre a incapacidade do homem alterar o clima...

- O que se passou, e está a passar, no Mar Aral (ver as fotografias acima) é um bom contra-exemplo da validade da tese referida em epígrafe:
The Aral Sea Disappears: NASA Photos EcoGeek - Clean Technology
"In a series of dramatic photos, NASA has been able to capture the disappearance of the Aral Sea from space. In the 1960's Russia diverted water from several major rivers to irrigation projects for growing cotton and other crops. The result has been the complete destruction of one what was once the fourth largest inland sea in the world. NASA's ability to document this entirely unprecedented event is not only fascinating, but it's a lesson to how quickly entire ecosystems (and the societies that rely on them) can collapse. The Aral sea was once surrounded by villages that relied on the Aral seas fisheries. Those towns are now all but deserted, and fishing boats sit on dry land. Next time some nutjob tells you that humanity is too insignificant to really destroy the environment in significant ways, just send them to this page."
- A outra, é particularmente curiosa: encontrei-a, ao ler (o muito interessante) "The Romantic Economist", de Richard Bronk, Cambridge - (o contexto que determinou a citação não interessa aqui). Refere-se a um comentário, feito em 1791, por um filósofo alemão, Herder, que passo a transcrever:
"Since climate is a compound of forces and influences to which both plants and
animals contribute, serving all that is alive within a relationship of mutual
interaction, it stands to reason that man, too, has a share, nay a dominant
role, in altering it through his creativity ... Once Europe was a dark forest
and the same was true of other, now cultived, regions. The forests have been
cleared and, as a result, the climate and the inhabitants underwent a change"Bronk cita, logo a seguir, o que diz ainda Herder:"By suddenly cutting down entire forests and cultivating the soil, the whole
balance of nature - which ought to be considered with the utmost care - is
disturbed ... The rapid destruction of the woods and cultivation of land in
America not only lessened the number of edible birds which were originally found
invast quantities in the forests and lakes and rivers, and the suupply of fish;
it not only diminished the lakes, streams and springs, but it also seemed to
affect the health and longevity of the inhabitants" Isto era dito no início da Revolução Industrial, há dois séculos atrás, na ausência do conhecimento das suas consequências futuras, do uso extensivo e intensivo dos carburantes fósseis, e de tudo o mais. Este alemão, num sentido fundamental, é mais contemporâneo nosso (daqueles que que não aceitam a tese em epígrafe) do que o é o Blasfémias e os seus amigos (ver nota anterior).
22 de março de 2009
Limites ao crescimento
Estamos em 2009 e o trabalho poderá continuar a ser criticado (embora, sem complacência) e já não é sujeito a derisão pelo "main stream" da economia (espero!) e da ciência:
21 de março de 2009
Recomendação de leitura
Acham que isto é ser alarmista? (II)
"But the Malthusian question has stimulated argument about the Earth's carrying capacity, which depends as much on human optimism as on ingenuity.
"If the world's population had the productivity of the Swiss, the consumption habits of the Chinese, the egalitarian instincts of the Swedes, and the social discipline of the Japanese, then the planet could support many times its current population without privation for anyone,"
wrote Lester C Thurow in the very different world of 1986.
Yet human numbers continue to swell, at more than 9,000 an hour, 80 million a year, a rate that threatens a doubling in less than 50 years. Land for cultivation is dwindling. Wind and rain erode fertile soils. Water supplies are increasingly precarious. Once-fertile regions are threatened with sterility. The yield from the oceans has begun to fall. To make matters potentially worse, human numbers threaten the survival of other species of plant and animal. Humans depend not just on what they can extract from the soil, but what they can grow in it, and this yield is driven by an intricate ecological network of organisms. Even at the most conservative estimate, other species are being extinguished at 100 to 1,000 times the background rate observable in the fossil record.
Malthus's arguments were part of the inspiration for Charles Darwin's theory of evolution, and they have validity in the natural world. On the savannah, in the rainforests, and across the tundra, animal populations explode when times are good, and crash when food reserves are exhausted. Is homo sapiens an exception? Perhaps. Humans can consider each other's needs, and cooperate; there is also plenty of evidence that they choose not to. The Optimum Population Trust does not have the answers, but the questions remain, quite literally, vital."
18 de março de 2009
Acham que isto é ser alarmista?
Food prices for major crops such as wheat and maize have recently settled after a sharp rise last year when production failed to keep up with demand. But according to Beddington, global food reserves are so low – at 14% of annual consumption – a major drought or flood could see prices rapidly escalate again. The majority of the food reserve is grain that is in transit between shipping ports, he said.
"Our food reserves are at a 50-year low, but by 2030 we need to be producing 50% more food. At the same time, we will need 50% more energy, and 30% more fresh water. [...]
In Britain, a global food shortage would drive up import costs and make food more expensive. [...]"
- continuar a ler em Edington: World faces 'perfect storm' of problems by 2030 Science guardian.co.uk
26 de janeiro de 2009
Obama fala da políticas do ambiente, da energia e dos transportes
15 de janeiro de 2009
Energia e a conjuntura económica
- Climate Progress » Blog Archive » The five reasons for an energy-efficient stimulus
Climate Progress » Blog Archive » Stimulating the economy with green buildings
- Retrofits for All! — Sightline Daily (formerly Tidepool)
- Financing retrofits for all Gristmill: The environmental news blog Grist
- Financing retrofits for all, II Gristmill: The environmental news blog Grist
- Idaho's progressive utility rules Gristmill: The environmental news blog Grist:
"Resolving this conflict in favor of conservation requires an innovative form of utility regulation called 'decoupling.' A decoupled utility makes profits not in proportion to its sales but in proportion to its success in advancing efficiency. (Decoupled utilities, furthermore, have nothing to fear from comprehensive, auctioned cap-and-trade with built-in protections for working families.)"
- Walker's World: The oil curse (UPI, Energy Daily)
- Russie-Ukraine : vrais et faux enjeux Telos
31 de dezembro de 2008
A-propósito...
Tomemos este caso como mais um pretexto para falar do mesmo - felizmente, existem muitas situações semelhantes; infelizmente, ainda não são tantas como será preciso.
A actuação [ver link ao fim] é exemplar (deveria sê-lo para todos os outros; para todos nós) por diversos motivos. Um desses motivos - aquele, desconfio, que mais facilmente ficaria abaixo do nível de percepção da maioria [não, obviamente, de quem visita este blogue :=)] - prende-se com política; com o que é política; com o modo como se faz política; como nos organizamos para fazer política.
Na verdade, o processo que leva uma instituição a pôr-se como objectivo fazer aquilo que aqui foi feito; a consciência - e logo a aprendizagem da temática - da necessidade disso ser feito (pela direcção, pelos agentes da acção, pelos destinatários); o modo como mobiliza e organiza os agentes - tudo isso tem a ver com política.
No entanto, o que está em causa é muito simples, muito modesto, com pouca "dignitas", para se constituir como prática política para a maioria dos intervenientes na política.
Ler a notícia aqui - além de tudo o mais, tem mesmo piada: A College Football Stadium Cuts Its Waste - Green Inc. Blog - NYTimes.com.
20 de dezembro de 2008
10 de dezembro de 2008
Um livro que gostaria de ler...
10 de novembro de 2008
Ambiente e economia
- A green New Deal? Green, easy and wrong The Economist: "TWO pressing problems face the world: economic meltdown and global warming. Conveniently, a solution presents itself that apparently solves both: governments should invest heavily in green technology, thus boosting demand while transforming the energy business."
4 de novembro de 2008
À espera dos resultados (II)
25 de setembro de 2008
20 de junho de 2008
O lago Chade

"Satellite images show Lake Chad one-tenth the size it was in 1972, not even 40 years ago. Lake Chad used to be the world’s sixth-largest lake, but its resources have been diverted for human use or affected by rainfall such that its been almost entirely depleted in a very short amount of time."
- visto em Climate Progress » Blog Archive » Lake Chad now more like Pond Chad.
13 de junho de 2008
Diversos sobre ambiente, energia e aquecimento global
- Climate Progress » Blog Archive » The Global Freshwater Crisis refere que The American Prospect dedica o seu número de Junho aos problemas da água no mundo - podem aceder em special report on the water crisis a esse conjunto de artigos.
- I'm melting Gristmill: The environmental news blog Grist. As outras consequências do desaparecimento do gelo no Árctico: "In other words, if it continues, the recent trend in sea ice loss may triple Arctic warming, causing large emissions in carbon dioxide and methane from the tundra this century. What is especially worrisome is that 2007 provides strong evidence on behalf of this theory: NOAA reported that methane levels rose in 2007 for the first time since 1998 (see here).
The tundra can emit vast amounts of methane when it defrosts (see Part 1).
Scientific analysis suggests the rise in 2007 methane levels came from Arctic wetlands (see here).
And 2007 saw record Arctic ice loss (see "Ice, ice, maybe (not)")."

Climate Progress » Blog Archive » Global warming causes deluges and flooding, just like the Midwest is seeing (again) (ver gráfico acima).
2007 saw the second most extreme precipitation over the United States in the historical record, according to NCDC’s Climate Extremes Index (CEI). Here is a plot of the percentage of this country (times two) with much greater than normal proportion of precipitation derived from extreme 1-day precipitation events (where extreme equals the highest tenth percentile of deluges): The U.S. Climate Extremes Index was explicitly created to take a complicated subject (”multivariate and multidimensional climate changes in the United States“) and make it more easily understood by American citizens and policy makers.
As far back as 1995, analysis by the National Climatic Data Center showed that over the course of the 20th century, the United States had suffered a statistically significant increase in a variety of extreme weather events, the very ones you would expect from global warming, such as more — and more intense — precipitation. That analysis concluded the chances were only “5 to 10 percent” this increase was due to factors other than global warming, such as “natural climate variability.” And since 1995, the climate has gotten much more extreme.Climate Progress » Blog Archive » Must read IEA report, Part 1: Act now with clean energy or face 6°C warming. Cost is NOT high — media blows the story
"When the normally conservative International Energy Agency (IEA) agrees with both the middle of the road IPCC and more … progressive voices like Climate Progress, it should be time for the world to get very serious, very fast on the clean energy transition. "
"... the real news from the global energy agency is:
Failing to act very quickly to transform the planet’s energy system puts us on a path to catastrophic outcomes. The investment required is “an average of some 1.1% of global GDP each year from now until 2050. This expenditure reflects a re-direction of economic activity and employment, and not necessarily a reduction of GDP.” In fact, this investment partly pays for itself in reduced energy costs alone (not even counting the pollution reduction benefits)!


- The world is on the brink of a renewables (and efficiency) revolution. [ver gráfico acima]. Probably the biggest difference between the IEA and the U.S. Energy Information Administration is that the EIA lives in a fantasy world where oil production can continue growing forever and greenhouse gas emissions are not something an energy agency needs to factor into planning. The IEA, however, lives in the real world, as its new report makes painfully clear: Unsustainable pressure on natural resources and on the environment is inevitable if energy demand is not de-coupled from economic growth and fossil fuel demand reduced. The situation is getting worse…. Baseline scenario foreshadow a 70% increase in oil demand by 2050 and a 130% rise in CO2 emissions…. a rise in CO2 emissions of such magnitude could raise global average temperatures by 6°C (eventual stabilisation level), perhaps more. The consequences would be significant change in all aspects of life and irreversible change in the natural environment. In short, business as usual energy policy leads to atmospheric CO2 concentrations of 1000 parts per million or more, and that is the end of life as we know it on this planet (See “Is 450 ppm politically possible? Part 0: The alternative is humanity’s self-destruction“).
- "Goldman Sachs analyst Arjun Murti predicted the recent spike in oil prices, so it’s worth looking at his recent interview in Barron’s"
7 de junho de 2008
29 de maio de 2008
A China proibe os sacos de plástico (os mais finos) e penaliza os mais grossos
- China Bags Plastic Habit SolveClimate.com
"It's official: China has risen above the rabble of plastic manufacturers and has boldly banned the plastic bag. The law will kick in June 1, and will apply to bags thinner than .025 millimeters thick. According to a survey by the China Plastics Processing Industry Association, the Chinese use up to one billion of the super thin sacks each day -- and 37 million barrels of oil a year to manufacture them. Experts predict that once the ban goes into effect, plastic bag consumption could drop by two thirds... What about the bags remaining? They'll be fitted with bar codes, and come Sunday, storekeepers will be forced to charge for them -- between 0.2 and 2 yuan (three and 30 cents)..."