Is there a Pliocene-Pleistocene increase in sediment flux from continents to the oceans? Why or why not? The data is in the stratigraphic record, but the why is in the geomorphology. We will begin with an overview then you can pick from these suggestions or offer up your own:

The What:
Zhang et al., 2001 - Nature (sedimentologic "evidence" for a global increase in sediment accumulation rates)
Molnar, 2004 - Annual Reviews (develops idea in Zhang in detail)
Willett, 2010 - Annual Reviews (climate driver of increased erosion in Alps)
Willenbring and von Blanckenburg, 2010 - Nature (counter argument for NO increase in erosion)
Herman et al., 2013 - Nature (just published last week - again arguing for an increase, from a different data set)

The Why:
Molnar, 2001 - Geology (argument for climate, discharge variability and erosion rates)
Lague et al., 2005 - JGR, ES (how discharge variability drives changes in fluvial incision)
Molnar et al., 2006 - JGR, ES (reevaluation of flood statistics and sediment transport)
DiBiasi and Whipple, 2011 - JGR, ES (case study of how to link discharge variability and erosion rates)

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