Ronn!Blankenship
Sun, 31 Aug 2003 23:24:36 +0000
Robert J. Chassell wrote:
> Fortunately, the graphs I have seen for carbon dioxide in the air and > the like, and reports from people whom I respect, have all suggested > that the problem is human-caused and that therefore the solution is > not hugely expensive.
Doug Pensinger <[EMAIL PROTECTED]> responded:
But what if it's both and we are exacerbating a natural cycle?
Could be.
Could it be like rolling a boulder over hillside prone to an avalanche? And even if any of the above scenario's are only slightly true, what is the most _conservative_ approach? ....
The most conservative approach is to reduce greenhouse gas emissions sharply.
We know that greenhouse gases do have some effect. The question is how much? If the effect is small, as it must be if the changes we see are natural, then we need to make bigger reductions.
Reductions mean, for example, increasing the funding and subsidy of public transportation, and encouraging people to use it. Empty buses are not good. To get people to shift over, the action has to be dramatic. One way is to make and buses gratis to use and, at the same time, sharply increasing the tax on carbon in gasoline -- not by the US$0.10 per gallon (US$0.379 per liter) that environmentalists have advocated (and lost) but by a much higher amount.
I don't know what the plans would be for gases such as methane.
On the one hand, `natural gas', i.e., fossil methane, has less carbon per unit of energy produced when it burns, so it is better than coal. On the other hand, when it leaks, it goes into the atmosphere where it absorbs more infrared than carbon dioxide. It is a more dangerous `greenhouse' gas. In the early 1990s, leaks from the former Soviet natural gas pipeline system were a serious issues. Cows and termites release a great deal of methane into the atmosphere; more research would have to be undertaken to deal with this, too, not to mention less expensive voltaic cells, seaweed and other biological stuff to alcohol, and the like. In other words, the government would have to sharply increase funding for a very wide variety of university research projects.
Also, the conservatives would insist that all cities provide no-fee `white' bicycles for people to pick up, ride, and then drop off.
The conservative approach means taxing home heating oil and gas and encouraging people to wear sweaters.
It means encouraging yet more insulation. It means changing light fixtures so they do not send light into the sky, where it is wasted.
In addition to conservation, the US government would have to spend tax payers' money on many different research projects for hydrogen or hydrogen-boron fusion -- not a billion dollars a year, or 10 billion dollars a year, but a billion or 10 billion dollars a month.
The expenditures would have to rival US taxpayer spending on Iraq.
Because of the `free rider' problem, the money will have to come from taxes. Although there will be some people who act to reduce or change the source of their energy use even though others do not, few are like that. As a practical matter, few people are saints. It is like the convention that everyone drives on a particular side of the road, on the left in Great Britain, and on the right in the US: everyone needs to follow the convention.
In a James Bond movie, you might enjoy a scene in which our hero drives in the on-coming lane; but outside a movie, life in the on-coming lane is short and nasty.
Although the US is more energy efficient than it was 30 years ago, the US is built around the use of fossil fuels and a transition is difficult and expensive.
In my experience, people who advocate doing little or nothing are people who do not have children and who do not care for the future of their neighbors' children.
(They say that they expect someones' children to invent solutions, but no one has any confidence that unknown inventions will be made, or if made, will be less expensive that acting now.)
All I can say is that I hope that the environmentalists are right and that those who say the changes are natural or from `exacerbating a natural cycle' are wrong. If the current changes are even partly natural -- which they might be -- the cost and suffering is higher.
_______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l