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Evolution, Life Sciences, Science Education, Human Evolution, and Stuff
Welcome to Greg Laden's Blog.
Category: Paleontology
To answer that question briefly, it is really really old if you mean "how old are the oldest rocks that are exposed by the Grand Canyon," and it is probably just a few million years old (5 or 6 by some estimates) if you mean...
Posted by Greg Laden at 1:23 PM • 6 Comments • 0 TrackBacks
Category: Climate Change
From James at Island of Doubt....
Posted by Greg Laden at 6:03 PM • 2 Comments • 0 TrackBacks
Category: Global Warming
This is a continuation of a discussion on the role of Global Warming in the decline of moose populations in Minnesota. It is also a discussion of Global Warming denialism....
Posted by Greg Laden at 2:51 PM • 6 Comments • 0 TrackBacks
Category: Climate
We have had a cool summer here in Minnesota, and this has brought out the miscreants who for their own reasons do not want to get on board with the simple, well demonstrated scientific fact that global temperatures have risen, that we humans are the...
Posted by Greg Laden at 10:57 AM • 49 Comments • 0 TrackBacks
Category: Earth Science
What they are referring to is a paper by Mojib Latif in which he notes that the media often misrepresent global warming as a continuous, year by year increase in temperature. The truth, of course, is that annual temperature varies up and down but...
Posted by Greg Laden at 6:33 PM • 6 Comments • 0 TrackBacks
Category: Nature conservation
This has come up a couple of times recently, so I thought I'd summarize the information here. The distribution of water on Earth in cubic kilometers Salt water: 1,318,062,462 Glaciers: 28,005,430 Groundwater: 12,270,210 Lakes: 106,396 Swamps: 13,452 Rivers: 2,446 Vapor: 13,000 Biological: 1,120 (Biological means...
Posted by Greg Laden at 8:03 PM • 11 Comments • 0 TrackBacks
Category: Blogospherics
This Seventh edition's theme is: "OMG, I can't believe how many submissions there are! Science is everywhere!!!!"
Posted by Greg Laden at 1:16 PM • 13 Comments • 0 TrackBacks
Category: Earth Science
...the self-righteous politics at any cost, "if the president does it it is legal" attitude of the 1970s right wing has moved off the stage over recent decades, and most of the practitioners of that attitude (many in prison) moved with it. So what was Buchanan doing on your show?
Posted by Greg Laden at 1:28 PM • 43 Comments • 0 TrackBacks
Category: Earth Science
I just got this massive continental plate sized press release from JPL. Below the fold. - - - - - the fold - - - -...
Posted by Greg Laden at 2:55 PM • 0 Comments • 0 TrackBacks
Category: Archaeology
... the interface between simplicity and complexity causes causes little balls of misunderstanding to come flying out of the mix like pieces of raw pizza dough if the guy making the pizza was the Tasmanian Devil ...
Posted by Greg Laden at 8:36 AM • 27 Comments • 0 TrackBacks
Highly Allochthonous 11.05.2009
Eruptions 11.05.2009
Not Exactly Rocket Science 11.05.2009
Corpus Callosum 11.05.2009
Starts With a Bang 11.04.2009
