A very warm welcome to our latest signatory, the British Geological Survey! @BritGeoSurvey envision a safer, more sustainable and prosperous planet and a future based on sound geoscientific solutions, all of which wouldn't be possible without their brilliant #technicians
This discovery suggests we've been underestimating how long people kept using birchbark tar.
Particularly when combined with the first reports of birchbark tar from Medieval England (📸) by @thepotlady, @dribull et al. in JAS (🆓) doi.org/10.1016/j.jasrep.201…
If he is serious about doing something for the environment then maybe @michaelgove could sort out VAT relief for environmental research, as is currently the case for medical and veterinary research.