Daily Roundup: July 13, 2010

Final Cap? BP execs say a new tight-fitting cap "should stop the leaking" for the first time since the oil gusher began in April. New York Times

Weigh In: The EPA is accepting public feedback about a new set of rules limiting toxic emissions and mercury from boilers and incinerators. ENN

Two Steps Back: Climate-change-caused extreme-weather events have dire health consequences that could revert U.S. public-health infrastructure back to a more ill-prepared era, say scientists. Daily Climate

Triple Threat: The amount of plutonium waste buried at Washington state's Hanford Nuclear Reservation is nearly three times what the federal government had previously reported. New York Times

Spray Scare: West Nile virus outbursts in San Jose, California, prompted a countywide spraying that has many residents concerned about health impacts. San Jose Mercury News

--Allison McCann