Employees at Barber's Farm in Middleburgh, N.Y., shovel muddy tomatoes left in the wake of flooding from Hurricane Irene. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Marvin Hardy drives screws into a sheet of plywood on Washington Mall in Cape May, N.J., on Friday, as he boards up storefronts in preparation for Hurricane Irene. Mandatory evacuations were under way affecting nearly 1 million residents and visitors in Cape May County, coastal Atlantic County and Long Beach Island, N.J. Mel Evans/AP hide caption

itoggle caption Mel Evans/AP

Sen. Pat Toomey (R-PA) addresses the Conservative Political Action Conference in Washington in February. Alex Brandon/AP hide caption

itoggle caption Alex Brandon/AP

A controversial drilling process called hydraulic fracturing or "fracking" frees natural gas underground by using millions of gallons of water brewed with toxic chemicals. A Department of Energy panel concludes the public needs more information about the practice to restore faith in it. Ralph Wilson/AP hide caption

itoggle caption Ralph Wilson/AP