Shout out to my colleagues on the SeibalSim Project, Gerardo Aldana (UCSB), Toni Gonzalez (UCSB), and especially Tommy Thelen (NCEAS) for getting this thing ready for primetime. The new R package, villager, is a great new tool to carry out agent-based modeling work. It is designed for archaeologists and non-expert modelers to test their ideasContinue reading “villager is up on CRAN”
Reposted from a comment I made to Linkedin post on reflections from COP26. China has advertised its progress transitioning away from coal, particularly in its energy sector. Part of this is due to domestic political reasons: a decade ago, the Chinese government in Beijing faced enormous demonstrations from ordinary Chinese opposed to the cost inContinue reading “Just my reflections on COP26”
With new dating on charcoal from a context stratigraphically above human footprints set in the playa at Alkali Flat in the US, Bennett et al. writing in Science demonstrate the presence of humans in North America between 23-21 ka ago. This is a big deal. There has been a lot to suggest that humans occupiedContinue reading “Pushing back the origins of New World human occupation”
David Vetter writes in Forbes that CROs have great potential in carbon markets, after interviewing lead-author Johannes Bednar and co-authors Myles Allen and Michael Obersteiner. Also contains an audio rendition. Writing in Cosmos, Ellen Phiddian connects the possible application of CROs to a report from a Swiss reinsurance institute that explains the enormous potential costContinue reading “Press from CROs Nature paper”
I am happy to announce that Johannes’ paper, on which I am a co-author, has just been published in Nature. Embargo ended at 8 AM California time today. See the IIASA press release here. Bednar, J., Obersteiner, M., Baklanov, A., Thomson, M., Wagner, F., Geden, O., Allen, M., Hall, J. (2021). Operationalizing the net negativeContinue reading “Operationalizing the net negative carbon economy”
The UEFA Euro 2020 tournament is being played out during a heat wave in Europe, including some of the warmest temperatures in recorded history (which is pretty long there). A friend of mine in Vienna was texting his complaints about it to me today. Well, California says, “hold my kombucha”: Update: The hottest temperatures everContinue reading “Hot topic”
It’s already 20 years since the Sudbury Neutrino Collaboration (SNO) announced the first results from the heavy water detector experiment in northern Ontario: that neutrinos have a small but finite mass, and therefore their flavours oscillate. That is, that some fraction of electron-type neutrinos produced from the beta-decay of 8B in the thermonuclear chain reactionContinue reading “Remembering the first SNO result”
This is a nice discussion of climate impacts on migration on a US cable news network.
In a recent publication in the journal Science, Motti et al. (2021) use nearly 1200 pollen records, with some sequences dated to 18 thousand years ago, collected by researchers from all over the planet, to show that the highest rates of plant species turnover are associated with human occupation; specifically, with phases of agricultural expansionContinue reading “The Case for a deep time Anthropocene”
One of my former colleagues at IIASA, Lena Höglund-Isaksson, speaks to The World (a syndicated radio program from Public Radio International & National Public Radio in the USA) about her work on the new UN report on methane emissions.