Sustainability Achieving sustainability will enable the Earth to continue supporting human life. In ecology, sustainability is how biological systems remain diverse and productive. Long-lived and healthy wetlands and forests are examples of sustainable biological systems.
The Markets are Mad: Is High-Frequency Trading Making Things Worse? (liquidlibrary) Thursday’s 423-point gain by the Dow marked the first time ever that the industrial average has posted four consecutive days of 400-point moves. Less than two weeks into August, there have already been six trading days that saw triple-digit swings this month. The Ecologist archive: Preface: A Blueprint for Survival. A Blueprint for Survival occupied the entire issue of The Ecologist Vol. 2 No. 1, January 1972, in advance of the world's first Environment Summit: the 1972 UN Conference on the Human Environment, in Stockholm. The principal authors were Edward Goldsmith and Robert Allen, with additional help from Michael Allaby, John Davoll, and Sam Lawrence. So great was demand for A Blueprint for Survival that it was republished in book form later that year by Penguin Books, on 14 September 1972.
Over-consumption CO2 emission per capita per year per country pre-2006 The theory was coined to augment the discussion of overpopulation, which reflects issues of carrying capacity without taking into account per capita consumption, by which developing nations are evaluated to consume more than their land can support. Green parties and the ecology movement often argue that consumption per person, or ecological footprint, is typically lower in poor than in rich nations. Causes Planned obsolescence
Blueprint for Survival A Blueprint for Survival was an influential environmentalist text that drew attention to the urgency and magnitude of environmental problems. First published as a special edition of The Ecologist in January 1972, it was later published in book form and went on to sell over 750,000 copies. The Blueprint was signed by over thirty of the leading scientists of the day—including Sir Julian Huxley, Sir Frank Fraser Darling, Sir Peter Medawar, and Sir Peter Scott—but was written by Edward Goldsmith and Robert Allen (with contributions from John Davoll and Sam Lawrence of the Conservation Society, and Michael Allaby) who argued for a radically restructured society in order to prevent what the authors referred to as “the breakdown of society and the irreversible disruption of the life-support systems on this planet”. It recommended that people live in small, decentralised and largely de-industrialised communities.
Malthusian catastrophe A chart of estimated annual growth rates in world population, 1800–2005. Rates before 1950 are annualized historical estimates from the US Census Bureau. Red = USCB projections to 2025. Work by Thomas Malthus In 1798, Thomas Malthus wrote: Why Adult Adoption is Key to the Success of Japanese Family Firms (iStockphoto) What happens when the heir to a family business isn’t up to the job? Not great things, apparently. But the Japanese have a solution: adult adoption. Didgeridoo There are no reliable sources stating the didgeridoo's exact age. Archaeological studies of rock art in Northern Australia suggest that the people of the Kakadu region of the Northern Territory have been using the didgeridoo for less than 1,000 years, based on the dating of paintings on cave walls and shelters from this period. A clear rock painting in Ginga Wardelirrhmeng, on the northern edge of the Arnhem Land plateau, from the freshwater period (that was begun 1500 years ago) shows a didgeridoo player and two songmen participating in an Ubarr Ceremony. Names & etymology
Tragedy of the commons The tragedy of the commons concept is often cited in connection with sustainable development, meshing economic growth and environmental protection, as well as in the debate over global warming. It has also been used in analyzing behavior in the fields of economics, evolutionary psychology, anthropology, game theory, politics, taxation, and sociology. However the concept, as originally developed, has also received criticism for not taking into account the many other factors operating to enforce or agree on regulation in this scenario. Lloyd's pamphlet In 1833, the English economist William Forster Lloyd published a pamphlet which included an example of herders sharing a common parcel of land on which they are each entitled to let their cows graze. In English villages, shepherds had sometimes grazed their sheep in common areas, and sheep ate grass more severely than cows.
Should Bad Predictions Be Punished? Government corn predictions are based on the work of people like Phil Friedrichs, gathering data in a corn field in Hiawatha, Kansas. (Photo: Stephen Koranda) What do Wall Street forecasters and Romanian witches have in common? They usually get away, scot-free, with making bad predictions. Our world is awash in poor prediction — but for some reason, we can’t stop, even though accuracy rates often barely beat a coin toss. But then there’s the U.S. Sancai Sancai (Chinese: 三彩; pinyin: sāncǎi; literally "three colours") is a type of decoration on Chinese pottery using three intermingled colors for decoration. Technique Sancai follows the development of green-glazed pottery dating back to the Han period (25-220 AD). Predecessors to the sancai style can also be seen in some Northern Qi (550-577) ceramic works. Northern Qi tombs have revealed some beautiful artifacts, such as porcellaneous ware with splashed green designs, previously thought to have been developed under the Tang dynasty. Such a jar has been found in a Northern Qi tomb, which was closed in 576 AD, and is considered as a precursor of the Tang sancai style of ceramics. Development
List of countries by sex ratio Map indicating the human sex ratio by country. Sex ratio by country for total population. Red represents more women, blue more men than the world average of 1.01 males/female. Sex ratio by country for population aged below 15. Red represents more women, blue more men than the world average of 1.06 males/female. Interpreting the Fed: How Did it Lower Rates This Time? I’ve found a lot of the recent discussion about the Fed to be, frankly, confused. So I thought it worth trying to put the issues into a broader context. Read the Fed’s latest statement, and you’ll see many of the themes I’ve talked about recently. They’ve learned that the economy is not only weak, but that—as I’ve been forecasting for some time—“economic growth so far this year has been considerably slower than the Committee had expected.”
Metonic cycle Heliocentric Solar System For astronomy and calendar studies, the Metonic cycle or Enneadecaeteris (from Ancient Greek: ἐννεακαιδεκαετηρίς, "nineteen years") is a period of very close to 19 years that is remarkable for being nearly a common multiple of the solar year and the synodic (lunar) month. The Greek astronomer Meton of Athens (fifth century BC) observed that a period of 19 years is almost exactly equal to 235 synodic months and, rounded to full days, counts 6,940 days.