I’ve actually read most of this thread (skimmed over some of the quotes). At the risk of sounding deranged, I found most of it interesting. I hope my two cents’ worth doesn’t contribute to global warming - i.e., I hope it generates more light than heat.
Wasn’t it Homer Simpson who said, “Facts are useless! You could use facts to prove anything!” That’s my feeling on the global warming argument. The old adage about lies, damn lies and statistics applies to both sides, especially when the argument gets emotional.
A previous poster commented that it’s arrogant to assume human beings are responsible for climate change. That comment resonated with me. The proposition that we can seriously affect a planet, if applied as a generalisation, strikes me as dubious if not untenable.
Nevertheless, there is at least one specific issue where human beings are having a substantial impact on the environment, and that is the emission of jet exhaust at high altitudes. The relationship between these emissions and UV radiation is proven, and there is current research focused on developing jet fuels that address this specific problem.
It’s my opinion that anyone who falls for the pitch some airlines are making for passengers to pay a voluntary “green” surcharge on top of their already exorbitant, over-taxed air fares is silly. This is not an issue that is going to be resolved by making charitable donations to publicly-listed companies, nor should it be.
There seems to be general agreement that President Bush has accepted global warming is a serious issue. Why? I am concerned that advocates of nuclear power may have more to do with it than meets the eye. In 2004, Australia completed its first north-south rail link. We are told its main purpose will be the transportation of freight. What freight - nuclear waste from around the world? I have seen no evidence to suggest this railroad will ever generate enough local traffic to pay for the capital costs incurred, let alone the recurrent expenses.
I have no evidence that President Bush’s more sympathetic approach to environmental issues involves the nuclear power industry, nor any evidence that the new north-south railway is intended to transport nuclear waste. I welcome comment on both issues from those of you more enlightened than I am.
Growing up in NYC, only fifty miles or so from the Indian Point reactor, I don’t have huge concerns about nuclear power. I can remember doing shelter drills in elementary school, and sneaking into a bomb shelter to marvel at the 44-gal drums of water and nick some of the biscuits that were stored there in the event of Armageddon. Living at the bulls-eye of a nuclear target for so long may have made me more laid back about nuclear than I should be, but that’s the way it is. I am certainly not emotional about it, one way or the other.
However, I am yet to be convinced about the economics of nuclear power. I think it’s a very expensive way to go. We are doing some interesting work here in Western Australia on clean coal and wind power (we have lots of both). Perth already has a desalination plant, with another, much larger facility on the way. I like the way our state government is extending Perth’s commuter rail network in an effort to get cars off the roads.
An economically pragmatic rationale that addresses specific environmental issues, one which includes or excludes specific technologies based solely on merit, strikes me as the appropriate way to deal with whatever environmental problems we face in the early 21st century.