A woman sunbathes on a rock on a hot summer day in Civitavecchia, northern Rome, July 5, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: ENVIRONMENT)
A man relaxes in the sun in New York's Bryant Park, July 1, 2010. Fine summer weather is expected to last through the Independence Day weekend in the north east U.S. REUTERS/Lily Bowers (UNITED STATES)
People cool off in a pool that floats in the river Spree on a hot summer day in Berlin, July 5, 2010. REUTERS/Thomas Peter (GERMANY - Tags: ENVIRONMENT SOCIETY)