Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Tuesday, March 9, 2010

Global warming has slowed only briefly

Science starts with a hypothesis. The hypothesis I would take from Lorne Gunter's article Gore v. Gunter (which I will not give the honor of a link from here) is that global warming has stopped. This is a testable hypothesis. If it is true, we will see several indicators: earth's albedo (the amount of light reflected into space) should be increasing. Gases such as carbon dioxide and methane (which is several times more potent at trapping heat in the atmosphere) should also be on the decline. There are other indicators, but these will suffice to make my point.

1. Albedo is decreasing because glaciers are melting for the first time in thousands of years.
2. Albedo is increasing because contrails reflect light.
Experimentation has shown that 1 is more significant than 2.

3. Carbon dioxide emissions continue.
4. Carbon dioxide sinks (algae in the ocean, for example) are becoming saturated
5. Glaciers, as they melt, are releasing methane.

Given these facts, unless you have found some magical stash of planetary coolant, I'd say our Toyota may have run out of gas, but I see a cliff right ahead, so it's liable to pick up speed on the way down. An argument I heard against global warming 15 years ago was, "The Earth will take care of itself." It will, but it doesn't have any special concern for humans.

Before you go bashing science in the media, best check with a real scientist or two to find out how science is really done.

Monday, November 19, 2007

Creation Museum tour

If you're still scratching your head about what might be in that Creation Museum in Petersburg, Kentucky (which I mentioned earlier), you can read all about it. If that leaves you sour because it tramples on your firmly-held beliefs, many people have been making observations and testing hypotheses to answer just that question. Read up on that at http://www.talkorigins.org/, where many of your lingering questions will be answered in the FAQ.