There is more nonsense being spoken on this subject than you can shake a stick at. This is from Yeb Sano's speech:
"The science has given us a picture that has become much more in focus. The IPCC report on climate change and extreme events underscored the risks associated with changes in the patterns as well as frequency of extreme weather events. Science tells us that simply, climate change will mean more intense tropical storms. As the Earth warms up, that would include the oceans. The energy that is stored in the waters off the Philippines will increase the intensity of typhoons and the trend we now see is that more destructive storms will be the new norm."
You can real his speech in total here
OK, there is no doubting that the typhoon was a human tragedy, but that should not stop people from thinking. It is hardly the biggest tragedy caused by typhoons - in fact I don't think it makes it into the top 50. Here are a few from wikipedia
1582, unnamed, 200,000 dead;
The Great Backerganj Cyclone of 1876, 200,000 dead;
1970 Bhola cyclone, where the official death toll was 500,000, but the number is likely to be higher.
1991 Bangladesh cyclone 150,000.
As I've said before, death toll is not a viable statistic for deciding the power of a storm. In Bangladesh you had a low lying delta with high population very vulnerable to storm surge, so high casualties (note other than the last these were not in the period of 'global warming'). More recently they have been struck again, with a storm as powerful as the 1970 bhola cyclone, but this time the death toll was 10,000. Still large, but why the enormous drop? Because they had invested (with international help) in more effective flood defences. That, too, will make a difference in the Philippines, because it was poverty and corruption that was much to blame for the death toll here.
So, let's look at this connection being made. Big typhoon = Global Warming = equals our fault, so pay damages and build windmills. Does it stack up to reality?
The idea was popularised by Kevin Trenberth. He called a press conference along with Ryan Maue (probably the world's foremost hurricane expert, which Trenberth is not) to discuss any connections between global warming and 'extreme weather events'. Fair enough, and Maue pulled up the data ready. Before it went ahead, however, Trenberth released a statement to the press that, yes, we would see more frequent and more powerful hurricanes, tornadoes, etc, as a result of warming. He said this because some model outputs predicted it. Maue was incensed, because the data said clearly that there was no such connection. In the period of supposed AGW from the late '70s till the late 90's (remember, there has been no warming since) the trend was flat. The opposite, if anything. The hurricane season this year has been very quiet, so has the tornado season (even taking the late one into account), and the West Pacific typhoon season pretty average.
When I heard about Trenberth's announcement, I thought, 'nobody is going to fall for that one, what do you take us for?'. Not only did the data not support his hypothesis, but he was saying precisely the opposite of what he and other climatologists had been telling us for the last 10-15 years. Remember, when temperatures were increasing, people would point to a particularly cold winter or an early snowstorm, and the reply was, 'yes but that's weather, we are talking about climate. You can't look at such short term things, you have to look at the trend over 10-15 years or more to see climate'. And now, when the trend for 17+ years is 'no warming', we are supposed to ignore that and look at individual weather events. Of course the press loved it, it makes easy headlines, but people are too smart, right? Well, many are, but it taught me that you should never underestimate the gullibility of people. Some people can be sold anything.
But the fact remains, there is no trend, and thus we cannot talk about any connection between CO2 and tornadoes or tropical revolving storms. I'll pull up some figures to show this, specifically for the Philippines, and also have something to say about what is happening with the IPCC and UNFCCC agenda that people really should be aware of.
One other thing before finishing. Here is our Beloved Leader, David Cameron: “If I said to you ‘There’s a 60 per cent chance your house might burn down, you want to take out some insurance?’ you take out some insurance. I think we should think about climate change like that. Even if you’re less certain than the scientists it makes sense to act both in terms of trying to prevent and mitigate.”
Well, people here have been around a bit, so I'm sure the first question that comes into your mind is, how much is the premium? Am I right? Because if the premium is more than the value of the house you would be stupid to insure it. Cameron was espousing the Precautionary Principle, an asinine idea beloved of ecoloons which is based on Pascal's Wager. The idea is that, if a possible event is really catastrophic, then even if you aren't sure it is going to happen the safest thing is to assume it will and act accordingly, because if you don't and you are wrong, the cost is just too high.
OK, let's agree, but there is a problem. You see, there is a chance that some aliens have noticed our advancing civilization and are on the way here with their Death Star. When they arrive they will use it to totally destroy the Earth and all living things in it. Yes, ok, it is extremely unlikely, but you have to agree that it is possible. Since this is far more catastophic than a measly couple of degrees centrigrade, the only thing to do is to devote all our resources - all of them - to building interplanetary missile defences before they come.
Of course, the idea is stupid, because it is such a remote possibility that it is foolish to act on it. But the form of the argument is no different from Cameron's, only the exact values of the probabilities, and the costs/benefits have changed. Which means you must take these into account. You have to do a cost/benefit analysis, with costs weighted by the probabllity of the event actually taking place.
Enough for now, but I want look at how we can know whether there is a connection between typhoon and warming, or between warming and CO2, later, because this doesn't seem to be understood.