A chronic drought has left huge swathes of the country parched, as man-made climate change forces shifts in the pattern of rainfall. That has left Lake Mead, the largest US artificial reservoir which is fed by the mighty Colorado River, worryingly low at just a third of its capacity.
Rainfall expected to move into the Western Corn Belt and the continued heat and dryness in key areas of southwest Russia are the weather factors holding the market s attention Tuesday.