Greg Laden is a biological anthropologist and science communicator. His research has covered North American prehistoric and historic archaeology and African archaeology and human ecology. He is an OpenSource and OpenAccess advocate. Greg's wife, Amanda, is a High School biology teacher, his daughter Julia is a world traveler and his son Huxley is 2.

What is not new Ultimately sea levels will rise several feet, given the present levels of CO2 in the atmosphere. We already knew this by examining paleo data, and finding periods in the past with similar surface temperatures and/or similar atmospheric CO2 levels as today. I put a graphic from a paper by Gavin Foster…

The tl:dr… don’t sleep late.

June 2015 was warm

Every month NASA GISS comes out with the new data for the prior month’s global surface temperature, and I generally grab that data set and make a graph or two. In a way this is a futile effort because the actual global surface temperature month by month is not as important as the long term…

Why is Pluto not a planet?

Short answer: Pluto has only two of the three necessary characteristics to be called a planet. Pluto has not cleared its neighborhood, or orbit. But, of course, there are additional details. The simplest reason that Pluto is not a planet is that planet experts say so, and this is their job. But you may be…

But first a word bout Chan-Hom. That typhoon messed with China but not as badly as originally feared, because the storm turned to the east a bit. Now, Chan-Hom is heading for North Korea where it will come ashore as a wet tropical storm. I would not be surprised if more bad stuff happened there…

Super Typhoon Chan-hom

UPDATE: There are significant changes (as of Friday mid day Middle America Time) in the track and strength of the storm, mostly good news for china. See here for updates. A large typhoon (hurricane) is heading for China and is expected to make landfall in the vicinity of Shanghai. The image above is from the…

Problems with the Apple Magic Mouse I had been using the stock Apple Magic Mouse on an iMac. The right click often didn’t work properly. Also, selecting and dragging files in Finder, or the Finder replacement I use (PathFinder) often failed. I figured the former was related to the mouse but assumed the latter was…

A new paper has just been published. This paper is going to cause an uproar in the science denialist community. Mud will be thrown. Tin hats will be donned. Somebody better check the oil pressure. Conspiracies everywhere I see conspiracies everywhere. It’s true. Look at any internet site that talks about health, disease, diet, or…

Focusing on Earth, but also a few tidbits on wind, fire, and ice, some current news and observations about global warming. Earth As humans release greenhouse gas pollutants (mainly CO2) into the atmosphere, the surface of the Earth, and the top 2000 meters of the ocean, heat up. But some of the CO2 is absorbed…

A Guest Review by John Abraham Wow! I just put down the best science fiction book I’ve read in a long time, and certainly the best Star Wars book I’ve ever read. Just like Lord of the Rings and Game of Thrones have made fantasy stories hip, the rebooted Star Wars franchise is making science…