One highlight of the May auctions was the sale of ''Nature Morte au Melon Vert, '' a delicious still-life composition by the painter Paul Cezanne that grabbed the top price at Sotheby's Impressionist and Modern auction.

FORBES: Scintillating Cezanne, Sizzling Season

Those carbon dioxide levels, in fact, have been dropping in the United States because of evolutions in the composition of electric generation from coal to natural gas, predicated on price structure and federal regulations.

FORBES: Lobbyists Try to Halt State Green Energy Standards