OxTalks will soon move to the new Halo platform and will become 'Oxford Events.' There will be a need for an OxTalks freeze. This was previously planned for Friday 14th November – a new date will be shared as soon as it is available (full details will be available on the Staff Gateway).
In the meantime, the OxTalks site will remain active and events will continue to be published.
If staff have any questions about the Oxford Events launch, please contact halo@digital.ox.ac.uk
Fluctuations and changes in Africa’s climate are critical to people today and over millennia have had profound impacts on our ancestors. Jessica Tierney, recipient of the 2014 American Geophysical Union Macelwane Medal, uses novel geochemical (leaf wax) techniques to reconstruct past hydrology and climate changes in parts of the continent where other reliable records are limited, and where records of the past are vital for improving predictions of the future. Combining empirical and modelling approaches, this talk sheds new light on the timing, extent and causes of the early Holocene ‘Green Sahara’, and its rapid demise to the extreme arid conditions we are familiar with today.
