Somewhere around 1990 I wrote an article for a monthly paper on global warming. My intention was to explain the idea behind it (the greenhouse phenomenon) and to make clear the distinction between depletion of the ozone layer and greenhouse effects (the two were getting confused on a regular basis in those days). The reason I mention this is that there was virtually nothing in that article that would not pertain today, and other than the addition of piles and piles of data, there has been almost no change in the science of greenhouse effects that has occurred since then. And by that, I specifically mean the working models for the dynamics of atmospheric response to the release of fossil carbon into the atmosphere that existed then are merely simpler versions of, but not fundamentally different from, those that are used today.
Continue reading Global warming denialism? It ends now.
I’ve spent a fair amount of time in Goma Congo (Zaire), trying hard to stay out of trouble, and I’ve flown around this mountain and driven around this mountain or its sister volcanoes, and the very existence of this volcano field has a lot to do with some of the research I’ve done. Oh, and for a while I had a truck with seats fitted to it that were taken from one of the many aircraft that had met its demise on the slopes of these cinder cones.
The reason I mention this at all is because NGS has a feature article with some amazing photos on Nyiragongo Volcano. Go have a look.
Looking back at what I’ve written here, it occurs to me that I’ve mentioned the Goma/Virnuga volcanoes a few times:
Butter Milk Creek is a Texas archaeological site and an archaeological complex located rather symbolically a couple of hundred miles downstream from the famous Clovis site in New Mexico. It is the most recently reported alleged manifestation of a “pre-Clovis” archaeological presence. The most important thing about this site is probably this: It is well dated (though the dates need to be independently verified or otherwise run through the gauntlet of criticism dates of important sites are always subjected to) and there are a lot of artifacts at the site. The importance of the number of artifacts is two-fold: It means that the site is unambiguously evidence of human activities and not of the activities of, say, a ground squirrel burrow into which a random artifact from a later time fell, and it means that researchers will be able to say something interesting about the lithic (stone tool) technology represented there.
In order to understand why a “pre-Clovis” site is interesting, one needs to understand the peculiar nature of American archaeology and its conceptions of prehistory.
Continue reading The Pre-Clovis Debra L. Friedkin site
Cool Planet is a community science-oriented organization located in Edina, Minnesota which “… strives to strengthen and empower the community of Edina by providing fun and engaging opportunities for citizens to join together in local homegrown solutions to climate change.”
Interesting idea. If you are in the Edina Area or are just interested in local community organization and science, check out their home page.
Henry Reich is developing a YouTube channel for one-minute-physics presentations. Below the fold is one of the more recent productions.
Continue reading How the sun works: Fusion and Quantum Tunneling
Michele Bachmann doesn’t really care about bullies, or if bullying leads to really bad things happening to children, because there is no bully bill in the US constittuion and it’s natural anyway. Here’s the audio of her senseless yammering about how an anti bulling bill could lead to the boys all turning gay.
Move over TED, make way for BILL.
Continue reading AudioVideo Things to Hear and See