|Ken Novak's Weblog
Purpose of this blog: to retain annotated bookmarks for my future reference, and to offer others my filter technology and other news. Note that this blog is categorized. Use the category links to find items that match your interests.
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Saturday, October 05, 2002
Joseph Stiglitz: speech on October 1, 2002 reviewing the recent past and reviewing themes from his recent book, Globalization and Its Discontents. Summarizes criticisms of the global financial system and the Bush administration. 11:07:09 PM
OECD Observer: Transport troubles
: "Consumption of diesel fuel is increasing at a higher rate than consumption of petrol, with a 4.6% annual rise from 1985 to 1995, compared with just 1.8% for petrol. The trouble is that while diesel engines are more fuel-efficient than petrol engines, with lower CO2 emissions per kilometre, they produce more breathable particulates.
Air transport ..has an “altitude effect”. At about 10 kilometres up, where commercial aircraft fly, the nitrogen oxides in the exhaust gases appear to be especially effective – two to four times more than on the ground – in facilitating the formation of ozone, a potent greenhouse gas. Aviation accounts for about 10% of motorised person-kilometres worldwide, and for less than 1% of freight movement, but this altitude effect may be responsible for about a quarter of transport’s contribution to climate change. Aviation is the fastest growing mode for the movement of both freight and people, so its global warming effect may exceed that of trucks or cars by 2030." 3:54:31 PM
OECD Observer: Renewables
: "A 2001 report on renewables to the G8 says that about US$100 billion of investment over 10 years in OECD countries would be enough to make renewable technology competitive within 20 years. That is equivalent to the value of a year’s national income in a country like Ireland and probably less than the cost of new investment in nuclear technology. Moreover, the figure is a customer-led outlay, meaning that there would be returns in both use (lights, heating, etc), technological progress and, of course, the environment." 3:33:05 PM
OECD on global warming
: "Conservation and efficiency should come first on the world agenda." Built into projections of future energy use is a decline in energy intensity (primary energy used per dollar of economic output) of 1% per year. Today, 14 T (terawatt-years per year) is used globally (2 T in Western Europe). At 1% less intensity per year, it rises to 27 T by 2050. If energy intensity were to decline by 2% per year, the world economy would use 10 T less - only 17 T - by 2050. "World energy spending would also be nearly a trillion dollars per year less than present projections. This is not easy to achieve, but the best opportunity lies in the developing world where most of the increase in population and energy use is projected to occur, and where energy intensity is currently about three times higher than in the industrialised world. "