What's New in New York Art?

We’re in the hot dog days of August, awaiting the new art season to kick off in September. In the meantime, I thought we might take the temperature of art in New York, looking at two big museum shows that opened earlier ruin the year, and that seek to highlight new voices from the city. So, we will be talking about “Greater New York,” the important show at MoMA PS1 in Queens that once every five…